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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1108.2772 | Klaus Schubert | Klaus R. Schubert and J\"urgen Stiewe | Demonstration of K-Kbar, B-Bbar, and D-Dbar Transitions with a Pair of
Coupled Pendula | 15 pages, 6 figures | null | 10.1088/0954-3899/39/3/033101 | null | hep-ph physics.class-ph physics.pop-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A setup of two coupled and damped pendula is used to demonstrate the main
features of transitions beween neutral K, D, B mesons and their respective
antiparticles, including CP violation in K Kbar transitions. The transitions
are described by two-state Schr\"odinger equations. Since the real parts of
their solutions ... | [
{
"created": "Sat, 13 Aug 2011 07:44:11 GMT",
"version": "v1"
},
{
"created": "Wed, 7 Dec 2011 10:34:44 GMT",
"version": "v2"
}
] | 2015-05-30 | [
[
"Schubert",
"Klaus R.",
""
],
[
"Stiewe",
"Jürgen",
""
]
] | A setup of two coupled and damped pendula is used to demonstrate the main features of transitions beween neutral K, D, B mesons and their respective antiparticles, including CP violation in K Kbar transitions. The transitions are described by two-state Schr\"odinger equations. Since the real parts of their solutions ob... |
hep-ph/0102259 | Xiong Zhao-hua | Z. Xiong, J. M. Yang (Institute of Theoretical Physics, Academia
Sinica) | Muon anomalous magnetic moment in technicolor models | refs and comments added | Phys.Lett. B508 (2001) 295-300 | 10.1016/S0370-2693(01)00521-4 | null | hep-ph | null | Contributions to the muon anomalous magnetic moment are evaluated in the
technicolor model with scalars and topcolor assisted technicolor model. In the
technicolor model with scalars, the additional contributions come from the
loops of scalars, which were found sizable only for a very large $f/f^{'}$
disfavored by th... | [
{
"created": "Wed, 21 Feb 2001 03:34:16 GMT",
"version": "v1"
},
{
"created": "Thu, 22 Feb 2001 08:44:59 GMT",
"version": "v2"
},
{
"created": "Fri, 9 Mar 2001 09:53:10 GMT",
"version": "v3"
}
] | 2009-11-07 | [
[
"Xiong",
"Z.",
"",
"Institute of Theoretical Physics, Academia\n Sinica"
],
[
"Yang",
"J. M.",
"",
"Institute of Theoretical Physics, Academia\n Sinica"
]
] | Contributions to the muon anomalous magnetic moment are evaluated in the technicolor model with scalars and topcolor assisted technicolor model. In the technicolor model with scalars, the additional contributions come from the loops of scalars, which were found sizable only for a very large $f/f^{'}$ disfavored by the ... |
1106.1599 | Mosleh Almarashi | Mosleh M. Almarashi and Stefano Moretti | Reinforcing the no-lose theorem for NMSSM Higgs discovery at the LHC | 19 pages, 9 figures, added comments and corrected typos | Phys.Rev.D84:035009,2011 | 10.1103/PhysRevD.84.035009 | SHEP-11-13 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show the potential of the LHC to detect a CP-even Higgs boson of the
NMSSM, $h_1$ or $h_2$, decaying into two rather light CP-odd Higgs bosons,
$a_1$, by exploiting the production mode based on Higgs-strahlung off
$b$-quarks, i.e., the channel $pp\to b\bar b h_{1,2}$. We also consider the
case of $h_2\to h_1 h_1$ ... | [
{
"created": "Wed, 8 Jun 2011 17:01:38 GMT",
"version": "v1"
},
{
"created": "Thu, 14 Jul 2011 15:54:00 GMT",
"version": "v2"
}
] | 2011-09-08 | [
[
"Almarashi",
"Mosleh M.",
""
],
[
"Moretti",
"Stefano",
""
]
] | We show the potential of the LHC to detect a CP-even Higgs boson of the NMSSM, $h_1$ or $h_2$, decaying into two rather light CP-odd Higgs bosons, $a_1$, by exploiting the production mode based on Higgs-strahlung off $b$-quarks, i.e., the channel $pp\to b\bar b h_{1,2}$. We also consider the case of $h_2\to h_1 h_1$ de... |
1305.2921 | Angelo Monteux | Angelo Monteux (University of California, Santa Cruz) | Natural, R-parity violating supersymmetry and horizontal flavor
symmetries | v3: version accepted for publication on PRD. Expanded discussion
about the NMSSM and neutrinos, references added, minor clarifications,
conclusions unchanged. 35 pages, revtex4.1 | Phys. Rev. D 88, 045029 (2013) | 10.1103/PhysRevD.88.045029 | SCIPP 13/08 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The absence so far of any supersymmetric signals at the LHC pushes towards a
rethinking of the assumptions underlying the MSSM. Because the large missing
$E_T$ searches are inadequate to detect a LSP decaying within the detector,
R-parity violating supersymmetry is still a good candidate for low energy,
natural super... | [
{
"created": "Mon, 13 May 2013 20:00:04 GMT",
"version": "v1"
},
{
"created": "Tue, 28 May 2013 16:15:04 GMT",
"version": "v2"
},
{
"created": "Tue, 6 Aug 2013 20:56:44 GMT",
"version": "v3"
}
] | 2013-08-30 | [
[
"Monteux",
"Angelo",
"",
"University of California, Santa Cruz"
]
] | The absence so far of any supersymmetric signals at the LHC pushes towards a rethinking of the assumptions underlying the MSSM. Because the large missing $E_T$ searches are inadequate to detect a LSP decaying within the detector, R-parity violating supersymmetry is still a good candidate for low energy, natural supersy... |
hep-ph/9911472 | A. Shuvaev | M. G. Ryskin and A. G. Shuvaev | Classical pion fields in the presence of source | 10 pages, LaTeX, 1 figure, epsfig.sty, corrected typos, added
references | Phys.Atom.Nucl. 64 (2001) 1508-1512; Yad.Fiz. 64 (2001) 1584-1588 | 10.1134/1.1398944 | null | hep-ph | null | Classical pion field similar to Disoriented Chiral Condensate (DCC) is
considered in the presence of the external source. This field is similar to DCC
in the sense that its isotopic orientation is specified with a single vector at
the whole space. We study the classical field solutions in the nonlinear
sigma-model bo... | [
{
"created": "Wed, 24 Nov 1999 17:03:06 GMT",
"version": "v1"
},
{
"created": "Thu, 24 Feb 2000 10:33:48 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Ryskin",
"M. G.",
""
],
[
"Shuvaev",
"A. G.",
""
]
] | Classical pion field similar to Disoriented Chiral Condensate (DCC) is considered in the presence of the external source. This field is similar to DCC in the sense that its isotopic orientation is specified with a single vector at the whole space. We study the classical field solutions in the nonlinear sigma-model both... |
hep-ph/0408252 | Xing Gang Wu | Tao Huang and Xing-Gang Wu | A Model for the Twist-3 Wave Function of the Pion and Its Contribution
to the Pion Form Factor | 22pages,4 figures. Phys.Rev. D70, 093013(2004) (in press) | Phys.Rev. D70 (2004) 093013 | 10.1103/PhysRevD.70.093013 | null | hep-ph | null | A model for the twist-3 wave function $\psi_p(x,\mathbf{k_\perp})$ of the
pion has been constructed based on the moment calculation by applying the QCD
sum rules, whose distribution amplitude has a better end-point behavior than
that of the asymptotic one. With this model wave function, the twist-3
contributions incl... | [
{
"created": "Tue, 24 Aug 2004 03:34:54 GMT",
"version": "v1"
},
{
"created": "Thu, 7 Oct 2004 04:35:48 GMT",
"version": "v2"
},
{
"created": "Fri, 26 Nov 2004 00:07:44 GMT",
"version": "v3"
}
] | 2009-11-10 | [
[
"Huang",
"Tao",
""
],
[
"Wu",
"Xing-Gang",
""
]
] | A model for the twist-3 wave function $\psi_p(x,\mathbf{k_\perp})$ of the pion has been constructed based on the moment calculation by applying the QCD sum rules, whose distribution amplitude has a better end-point behavior than that of the asymptotic one. With this model wave function, the twist-3 contributions includ... |
hep-ph/9606463 | Bruce Campbell | Rouzbeh Allahverdi and Bruce A. Campbell | Cosmological Reheating and Self-Interacting Final State Bosons | 17 pages LaTeX, accepted for publication in Physics Letters B,
extended discussion of broad-band resonance regime, and references added | Phys.Lett. B395 (1997) 169-177 | 10.1016/S0370-2693(97)00045-2 | Alberta-THY-18/96 | hep-ph | null | We consider inflaton decay to final state bosons with self-interactions of
moderate strength. We find that such final state self-interactions
qualitatively alter the reheat dynamics. In the case of narrow-band resonance
decay, where a quantitative analysis is possible, we show that these final
state interactions regu... | [
{
"created": "Fri, 28 Jun 1996 04:02:30 GMT",
"version": "v1"
},
{
"created": "Sun, 22 Dec 1996 20:46:58 GMT",
"version": "v2"
}
] | 2009-10-28 | [
[
"Allahverdi",
"Rouzbeh",
""
],
[
"Campbell",
"Bruce A.",
""
]
] | We consider inflaton decay to final state bosons with self-interactions of moderate strength. We find that such final state self-interactions qualitatively alter the reheat dynamics. In the case of narrow-band resonance decay, where a quantitative analysis is possible, we show that these final state interactions regula... |
2107.07840 | Muhammad Waqas | M. Waqas, G. X. Peng, Z. Wazir | Decoupling of non-strange, strange and multi-strange particles from the
system in Cu-Cu, Au-Au and Pb-Pb collisions at high energies | null | null | 10.1016/j.cjph.2022.03.034 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Transverse momentum spectra of the non-strange, strange and multi-strange
particles in central and peripheral Copper-Copper, Gold-Gold and Lead-Lead
collisions are analyzed by the blast wave model with Boltzmann Gibbs
statistics. The model results are approximately in agreement with the
experimental data measured by ... | [
{
"created": "Fri, 16 Jul 2021 12:00:36 GMT",
"version": "v1"
},
{
"created": "Thu, 19 Aug 2021 15:24:04 GMT",
"version": "v2"
}
] | 2022-05-04 | [
[
"Waqas",
"M.",
""
],
[
"Peng",
"G. X.",
""
],
[
"Wazir",
"Z.",
""
]
] | Transverse momentum spectra of the non-strange, strange and multi-strange particles in central and peripheral Copper-Copper, Gold-Gold and Lead-Lead collisions are analyzed by the blast wave model with Boltzmann Gibbs statistics. The model results are approximately in agreement with the experimental data measured by BR... |
2205.02250 | Tongyan Lin | Brian Campbell-Deem, Simon Knapen, Tongyan Lin, Ethan Villarama | Dark matter direct detection from the single phonon to the nuclear
recoil regime | 28 pages, 16 figures; journal version with minor updates | null | 10.1103/PhysRevD.106.036019 | null | hep-ph | http://creativecommons.org/licenses/by/4.0/ | In most direct detection experiments, the free nuclear recoil description of
dark matter scattering breaks down for masses $\lesssim$ 100 MeV, or when the
recoil energy is comparable to a few times the typical phonon energy. For dark
matter lighter than 1 MeV, scattering via excitation of a single phonon
dominates an... | [
{
"created": "Wed, 4 May 2022 18:00:05 GMT",
"version": "v1"
},
{
"created": "Fri, 25 Aug 2023 17:07:32 GMT",
"version": "v2"
}
] | 2023-08-28 | [
[
"Campbell-Deem",
"Brian",
""
],
[
"Knapen",
"Simon",
""
],
[
"Lin",
"Tongyan",
""
],
[
"Villarama",
"Ethan",
""
]
] | In most direct detection experiments, the free nuclear recoil description of dark matter scattering breaks down for masses $\lesssim$ 100 MeV, or when the recoil energy is comparable to a few times the typical phonon energy. For dark matter lighter than 1 MeV, scattering via excitation of a single phonon dominates and ... |
1612.08822 | Chen Cheng | Chen Cheng, Xiao-Yun Wang | The production of neutral $N^*(11052)$ resonance with hidden beauty from
$\pi^-p$ scattering | null | Adv. High Energy Phys. 2017 (2017) 9398732 | 10.1155/2017/9398732 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the discovery potential of the predicted neutral hidden beauty
$N^*(11052)$ resonance through $\pi^- p$ scattering within an effective
Lagrangian approach. Two reactions $\pi^-p\rightarrow K^-\Sigma^+$ and
$\pi^-p\rightarrow \eta_bn$ are studied in this work, with nucleon pole
exchange as the backgroun... | [
{
"created": "Wed, 28 Dec 2016 08:13:13 GMT",
"version": "v1"
}
] | 2017-01-06 | [
[
"Cheng",
"Chen",
""
],
[
"Wang",
"Xiao-Yun",
""
]
] | We investigate the discovery potential of the predicted neutral hidden beauty $N^*(11052)$ resonance through $\pi^- p$ scattering within an effective Lagrangian approach. Two reactions $\pi^-p\rightarrow K^-\Sigma^+$ and $\pi^-p\rightarrow \eta_bn$ are studied in this work, with nucleon pole exchange as the background.... |
1404.3670 | Ralf Lehnert | Ralf Lehnert | Spacetime-symmetry violations: motivations, phenomenology, and tests | 10 pages, 1 figure | Physics Procedia 17, 135 (2011) | 10.1016/j.phpro.2011.06.029 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | An important open question in fundamental physics concerns the nature of
spacetime at distance scales associated with the Planck length. The widespread
belief that probing such distances necessitates Planck-energy particles has
impeded phenomenological and experimental research in this context. However, it
has been r... | [
{
"created": "Mon, 14 Apr 2014 17:57:36 GMT",
"version": "v1"
}
] | 2014-04-15 | [
[
"Lehnert",
"Ralf",
""
]
] | An important open question in fundamental physics concerns the nature of spacetime at distance scales associated with the Planck length. The widespread belief that probing such distances necessitates Planck-energy particles has impeded phenomenological and experimental research in this context. However, it has been rea... |
0802.0769 | Allen Caldwell | Allen Caldwell | Behavior of sigma(gamma p) at Large Coherence Lengths | 34 pages, 20 figures | null | null | null | hep-ph | null | Various parametrizations of sigma(gamma p) are tried out on the small-x fixed
target and HERA data. A two-Pomeron type parametrization is found to give the
best reproduction of the data. The data indicate that the value of lambda(eff)
for parametrizations of the form sigma(gamma p)~l^lambda(eff) approaches a
constant... | [
{
"created": "Wed, 6 Feb 2008 12:56:51 GMT",
"version": "v1"
}
] | 2008-02-07 | [
[
"Caldwell",
"Allen",
""
]
] | Various parametrizations of sigma(gamma p) are tried out on the small-x fixed target and HERA data. A two-Pomeron type parametrization is found to give the best reproduction of the data. The data indicate that the value of lambda(eff) for parametrizations of the form sigma(gamma p)~l^lambda(eff) approaches a constant v... |
2104.07670 | Samuel Witte | Samuel J. Witte, Dion Noordhuis, Thomas D. P. Edwards, and Christoph
Weniger | Axion-Photon Conversion in Neutron Star Magnetospheres: The Role of the
Plasma in the Goldreich-Julian Model | v3: Fix "?" citation. v2: Accepted for publication PRD. Convergence
improved, plots updated, minor bugs and typos corrected. No major changes to
results/conclusions. v1: 9 pages + Appendix | null | 10.1103/PhysRevD.104.103030 | null | hep-ph astro-ph.CO astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The most promising indirect search for the existence of axion dark matter
uses radio telescopes to look for narrow spectral lines generated from the
resonant conversion of axions in the magnetospheres of neutron stars.
Unfortunately, a large list of theoretical uncertainties has prevented this
search strategy from be... | [
{
"created": "Thu, 15 Apr 2021 18:00:00 GMT",
"version": "v1"
},
{
"created": "Tue, 2 Nov 2021 08:34:03 GMT",
"version": "v2"
},
{
"created": "Mon, 4 Jul 2022 13:50:06 GMT",
"version": "v3"
}
] | 2022-07-05 | [
[
"Witte",
"Samuel J.",
""
],
[
"Noordhuis",
"Dion",
""
],
[
"Edwards",
"Thomas D. P.",
""
],
[
"Weniger",
"Christoph",
""
]
] | The most promising indirect search for the existence of axion dark matter uses radio telescopes to look for narrow spectral lines generated from the resonant conversion of axions in the magnetospheres of neutron stars. Unfortunately, a large list of theoretical uncertainties has prevented this search strategy from bein... |
hep-ph/9712340 | Jonathan R. Ellis | John Ellis | Hunting Down Interpretations of the HERA Large-Q^2 data | 8 pages, Latex, Parallel Session Talk presented at Europhysics
Conference on High-Energy Physics, Jerusalem, August 1997 | null | null | CERN-TH/97-356 | hep-ph | null | Possible interpretations of the HERA large-Q^2 data are reviewed briefly. The
possibility of statistical fluctuations cannot be ruled out, and it seems
premature to argue that the H1 and ZEUS anomalies are incompatible. The data
cannot be explained away by modifications of parton distributions, nor do
contact interac... | [
{
"created": "Thu, 11 Dec 1997 09:29:11 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Ellis",
"John",
""
]
] | Possible interpretations of the HERA large-Q^2 data are reviewed briefly. The possibility of statistical fluctuations cannot be ruled out, and it seems premature to argue that the H1 and ZEUS anomalies are incompatible. The data cannot be explained away by modifications of parton distributions, nor do contact interacti... |
1411.7392 | Robert Schabinger | Andreas von Manteuffel, Erik Panzer, and Robert M. Schabinger | A quasi-finite basis for multi-loop Feynman integrals | 21 pages, 3 figures; in v2: added additional references. v2 is the
version published in JHEP; in v3: fixed references | Journal of High Energy Physics, February 2015:120 | 10.1007/JHEP02(2015)120 | MITP/14-076 | hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a new method for the decomposition of multi-loop Euclidean Feynman
integrals into quasi-finite Feynman integrals. These are defined in shifted
dimensions with higher powers of the propagators, make explicit both infrared
and ultraviolet divergences, and allow for an immediate and trivial expansion
in the p... | [
{
"created": "Wed, 26 Nov 2014 21:00:52 GMT",
"version": "v1"
},
{
"created": "Wed, 23 Sep 2015 14:18:18 GMT",
"version": "v2"
},
{
"created": "Thu, 20 Apr 2017 14:49:58 GMT",
"version": "v3"
}
] | 2017-04-21 | [
[
"von Manteuffel",
"Andreas",
""
],
[
"Panzer",
"Erik",
""
],
[
"Schabinger",
"Robert M.",
""
]
] | We present a new method for the decomposition of multi-loop Euclidean Feynman integrals into quasi-finite Feynman integrals. These are defined in shifted dimensions with higher powers of the propagators, make explicit both infrared and ultraviolet divergences, and allow for an immediate and trivial expansion in the par... |
1111.4308 | Andrej Arbuzov | Andrej B. Arbuzov and Tatiana V. Kopylova | On relativization of the Sommerfeld-Gamow-Sakharov factor | 9 pages, 4 figures; references and discussion are extended | null | 10.1007/JHEP04(2012)009 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Sommerfeld-Gamow-Sakharov factor is considered for the general case of
arbitrary masses and energies. It is shown that the scalar triangular one-loop
diagram gives the Coulomb singularity in radiative corrections at the
threshold. The singular part of the correction is factorized at the complete
Born cross sectio... | [
{
"created": "Fri, 18 Nov 2011 09:18:09 GMT",
"version": "v1"
},
{
"created": "Fri, 25 Nov 2011 10:18:24 GMT",
"version": "v2"
}
] | 2015-06-03 | [
[
"Arbuzov",
"Andrej B.",
""
],
[
"Kopylova",
"Tatiana V.",
""
]
] | The Sommerfeld-Gamow-Sakharov factor is considered for the general case of arbitrary masses and energies. It is shown that the scalar triangular one-loop diagram gives the Coulomb singularity in radiative corrections at the threshold. The singular part of the correction is factorized at the complete Born cross section ... |
1504.07008 | Peter Filip | Peter Filip | Decay of Resonaces in Strong Magnetic Field | 10 pages, 6 figures, contribution to WWND-2015 conference proceedings | Journal of Physics: Conference Series 636 (2015) 012013 | 10.1088/1742-6596/636/1/012013 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We suggest that decay properties (branching ratios) of hadronic resonances
may become modified in strong external magnetic field. The behavior of $K^{\pm
*}\!$, $K^{0*}$ vector mesons as well as $\Lambda^*(1520)$ and $\Xi^{0*}$
baryonic states is considered in static fields $10^{13}$-\,$10^{15}$ T. In
particular, $n=... | [
{
"created": "Mon, 27 Apr 2015 10:00:20 GMT",
"version": "v1"
}
] | 2015-09-01 | [
[
"Filip",
"Peter",
""
]
] | We suggest that decay properties (branching ratios) of hadronic resonances may become modified in strong external magnetic field. The behavior of $K^{\pm *}\!$, $K^{0*}$ vector mesons as well as $\Lambda^*(1520)$ and $\Xi^{0*}$ baryonic states is considered in static fields $10^{13}$-\,$10^{15}$ T. In particular, $n=0$... |
hep-ph/9802407 | null | Marco Aurelio Diaz | Bilinear R-Parity Violation | 12 pages, including 5 figures, Latex. To appear in the proceedings of
the International Workshop "Beyond the Standard Model: From Theory to
Experiment", 13-17 October 1997, Valencia, Spain | null | null | IFIC/98-11, FTUV/98-11 | hep-ph | null | We review some of the main features of Bilinear R-Parity Violation (BRpV),
defined by a quadratic term in the superpotential which mixes lepton and Higgs
superfields and is proportional to a mass parameter epsilon. We show how large
values of epsilon can induce a small neutrino mass without fine-tunning. We
mention t... | [
{
"created": "Tue, 24 Feb 1998 13:20:44 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Diaz",
"Marco Aurelio",
""
]
] | We review some of the main features of Bilinear R-Parity Violation (BRpV), defined by a quadratic term in the superpotential which mixes lepton and Higgs superfields and is proportional to a mass parameter epsilon. We show how large values of epsilon can induce a small neutrino mass without fine-tunning. We mention the... |
1601.03566 | Hyun Min Lee | Soo-Min Choi, Hyun Min Lee | Resonant SIMP dark matter | 14 pages, 5 figures, Improved discussion on thermal-averaged
annihilation cross section | null | 10.1016/j.physletb.2016.04.055 | null | hep-ph astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a resonant SIMP dark matter in models with two singlet complex
scalar fields charged under a local dark $U(1)_D$. After the $U(1)_D$ is broken
down to a $Z_5$ discrete subgroup, the lighter scalar field becomes a SIMP dark
matter which has the enhanced $3\rightarrow 2$ annihilation cross section near
the ... | [
{
"created": "Thu, 14 Jan 2016 11:50:20 GMT",
"version": "v1"
},
{
"created": "Wed, 2 Mar 2016 14:45:50 GMT",
"version": "v2"
}
] | 2016-06-22 | [
[
"Choi",
"Soo-Min",
""
],
[
"Lee",
"Hyun Min",
""
]
] | We consider a resonant SIMP dark matter in models with two singlet complex scalar fields charged under a local dark $U(1)_D$. After the $U(1)_D$ is broken down to a $Z_5$ discrete subgroup, the lighter scalar field becomes a SIMP dark matter which has the enhanced $3\rightarrow 2$ annihilation cross section near the re... |
hep-ph/9709285 | Anupam Singh | Edward W. Kolb, Anupam Singh and Mark Srednicki | Quantum Fluctuations of Axions | Revtex, 15 pages including epsf figures, final version to appear in
Phys. Rev. D: now contains a detailed discussion taking into account the time
dependence of the axion mass; conclusions unchanged | Phys.Rev. D58 (1998) 105004 | 10.1103/PhysRevD.58.105004 | null | hep-ph astro-ph gr-qc hep-th | null | We study the time evolution of the quantum fluctuations of the axion field
for both the QCD axion as well as axions arising in the context of supergravity
and string theories. We explicitly keep track not only of the coherently
oscillating zero momentum mode of the axion but also of the higher non-zero
momentum modes... | [
{
"created": "Mon, 8 Sep 1997 18:28:23 GMT",
"version": "v1"
},
{
"created": "Tue, 28 Jul 1998 21:21:30 GMT",
"version": "v2"
}
] | 2009-10-30 | [
[
"Kolb",
"Edward W.",
""
],
[
"Singh",
"Anupam",
""
],
[
"Srednicki",
"Mark",
""
]
] | We study the time evolution of the quantum fluctuations of the axion field for both the QCD axion as well as axions arising in the context of supergravity and string theories. We explicitly keep track not only of the coherently oscillating zero momentum mode of the axion but also of the higher non-zero momentum modes u... |
1104.0083 | Jing Shu | Jing Shu, Kai Wang and Guohuai Zhu | A Revisit to Top Quark Forward-Backward Asymmetry | 25 pages, 7 figures, 1 table | null | 10.1103/PhysRevD.85.034008 | IPMU11-0050 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We analyze various models for the top quark forward-backward asymmetry
($A^t_{FB}$) at the Tevatron, using the latest CDF measurements on different
$A^t_{FB}$s and the total cross section. The axigluon model in Ref. \cite{paul}
has difficulties in explaining the large rapidity dependent asymmetry and mass
dependent a... | [
{
"created": "Fri, 1 Apr 2011 06:02:13 GMT",
"version": "v1"
}
] | 2015-05-27 | [
[
"Shu",
"Jing",
""
],
[
"Wang",
"Kai",
""
],
[
"Zhu",
"Guohuai",
""
]
] | We analyze various models for the top quark forward-backward asymmetry ($A^t_{FB}$) at the Tevatron, using the latest CDF measurements on different $A^t_{FB}$s and the total cross section. The axigluon model in Ref. \cite{paul} has difficulties in explaining the large rapidity dependent asymmetry and mass dependent asy... |
hep-ph/0203060 | yongjin Jiang | Guang-jiong Ni | Superluminal Paradox and Neutrino | null | null | null | null | hep-ph | null | Einstein's theory of special relativity(SR) and the principle of causality
imply that the speed of any moving object can not exceed that of light in a
vacuum($c$).However,there were many attempts in literature discussing the
particle moving with speed $u>c$(called as superluminal particle or
tachyon)either in the sch... | [
{
"created": "Wed, 6 Mar 2002 08:27:34 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Ni",
"Guang-jiong",
""
]
] | Einstein's theory of special relativity(SR) and the principle of causality imply that the speed of any moving object can not exceed that of light in a vacuum($c$).However,there were many attempts in literature discussing the particle moving with speed $u>c$(called as superluminal particle or tachyon)either in the schem... |
1708.07348 | Kazem Azizi | S. S. Agaev, K. Azizi, H. Sundu | Decay widths of the excited $\Omega_b$ baryons | 17 Pages, 8 Figures and 1 Table | null | 10.1103/PhysRevD.96.094011 | null | hep-ph hep-ex hep-lat | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The LHCb Collaboration recently observed five narrow $\Omega_c^{0}$
resonances, and measured their masses and widths through the decays $
\Omega_c^{0} \to \Xi_c^{+}K^{-}$. Motivated by this discovery, and also by the
fact that the ground-state bottom baryon $\Omega_b^{-}$ with spin-1/2 was
already found experimentall... | [
{
"created": "Thu, 24 Aug 2017 10:43:11 GMT",
"version": "v1"
},
{
"created": "Mon, 23 Oct 2017 14:24:41 GMT",
"version": "v2"
}
] | 2022-08-17 | [
[
"Agaev",
"S. S.",
""
],
[
"Azizi",
"K.",
""
],
[
"Sundu",
"H.",
""
]
] | The LHCb Collaboration recently observed five narrow $\Omega_c^{0}$ resonances, and measured their masses and widths through the decays $ \Omega_c^{0} \to \Xi_c^{+}K^{-}$. Motivated by this discovery, and also by the fact that the ground-state bottom baryon $\Omega_b^{-}$ with spin-1/2 was already found experimentally,... |
1810.07955 | Nicolas Wink | Reinhard Alkofer, Axel Maas, Walid Ahmed Mian, Mario Mitter, Jordi
Par\'is-L\'opez, Jan M. Pawlowski, Nicolas Wink | Bound state properties from the Functional Renormalisation Group | Version submitted to Journal | Phys. Rev. D 99, 054029 (2019) | 10.1103/PhysRevD.99.054029 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss an approach for accessing bound state properties, like mass and
decay width, of a theory within the functional renormalisation group approach.
An important cornerstone is the dynamical hadronization technique for resonant
interaction channels. The general framework is exemplified and put to work
within the... | [
{
"created": "Thu, 18 Oct 2018 09:06:49 GMT",
"version": "v1"
},
{
"created": "Thu, 8 Nov 2018 14:36:37 GMT",
"version": "v2"
}
] | 2019-04-03 | [
[
"Alkofer",
"Reinhard",
""
],
[
"Maas",
"Axel",
""
],
[
"Mian",
"Walid Ahmed",
""
],
[
"Mitter",
"Mario",
""
],
[
"París-López",
"Jordi",
""
],
[
"Pawlowski",
"Jan M.",
""
],
[
"Wink",
"Nicolas",
""
]
] | We discuss an approach for accessing bound state properties, like mass and decay width, of a theory within the functional renormalisation group approach. An important cornerstone is the dynamical hadronization technique for resonant interaction channels. The general framework is exemplified and put to work within the t... |
hep-ph/0311182 | Nestor Armesto | N. Armesto | Introduction to Low x Physics and Saturation | 8 pages in LaTeX using enclosed appolb.cls, 3 eps figures included
using epsfig; minireview at the XXXIIIrd International Symposium on
Multiparticle Dynamics (Kracow, Poland, September 5th-11th 2003) | Acta Phys.Polon. B35 (2004) 213-222 | null | CERN-TH/2003-278 | hep-ph | null | The idea of saturation of parton densities in small x physics is briefly
introduced. Some aspects of saturation are described, mainly focusing on the
status of our knowledge on the non-linear equations describing the high parton
density regime. Implications of saturation ideas on the description of nuclear
collisions... | [
{
"created": "Fri, 14 Nov 2003 09:31:26 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Armesto",
"N.",
""
]
] | The idea of saturation of parton densities in small x physics is briefly introduced. Some aspects of saturation are described, mainly focusing on the status of our knowledge on the non-linear equations describing the high parton density regime. Implications of saturation ideas on the description of nuclear collisions a... |
1109.0661 | Gilberto Tavares-Velasco | I. Cortes-Maldonado (Facultad de Ciencias Fisico Matematicas,
Benemerita Universidad Autonoma de Puebla), A. Moyotl (Instituto de Fisica,
Benemerita Universidad Autonoma de Puebla), G. Tavares-Velasco (Facultad de
Ciencias Fisico Matematicas, Benemerita Universidad Autonoma de Puebla) | Lepton flavor violating decay Z-> l_i l_j in the 331 model | 14 pages, 3 figures, 1 table | null | 10.1142/S0217751X11054474 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the lepton flavor violating (LFV) decays Z-> l_i l_j
(l_{i,j}=e,\mu,\tau) in the framework of the minimal 331 model. The main
contributions arise at the one-loop level via a doubly charged bilepton with
general LFV couplings. We obtain an estimate for the corresponding branching
ratios by using the bounds on... | [
{
"created": "Sun, 4 Sep 2011 01:06:58 GMT",
"version": "v1"
}
] | 2011-09-29 | [
[
"Cortes-Maldonado",
"I.",
"",
"Facultad de Ciencias Fisico Matematicas,\n Benemerita Universidad Autonoma de Puebla"
],
[
"Moyotl",
"A.",
"",
"Instituto de Fisica,\n Benemerita Universidad Autonoma de Puebla"
],
[
"Tavares-Velasco",
"G.",
"",
"Facultad de\... | We study the lepton flavor violating (LFV) decays Z-> l_i l_j (l_{i,j}=e,\mu,\tau) in the framework of the minimal 331 model. The main contributions arise at the one-loop level via a doubly charged bilepton with general LFV couplings. We obtain an estimate for the corresponding branching ratios by using the bounds on t... |
0912.2660 | Jacopo Bechi | Jacopo Bechi | Statistical Hadronization and Holography | null | null | null | CP3-Origins: 2009-27 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we consider some issues about the statistical model of the
hadronization in a holographic approach. We introduce a Rindler like horizon in
the bulk and we understand the string breaking as a tunneling event under this
horizon. We calculate the hadron spectrum and we get a thermal, and so
statistical, sh... | [
{
"created": "Mon, 14 Dec 2009 15:14:51 GMT",
"version": "v1"
},
{
"created": "Thu, 17 Dec 2009 14:37:23 GMT",
"version": "v2"
}
] | 2009-12-17 | [
[
"Bechi",
"Jacopo",
""
]
] | In this paper we consider some issues about the statistical model of the hadronization in a holographic approach. We introduce a Rindler like horizon in the bulk and we understand the string breaking as a tunneling event under this horizon. We calculate the hadron spectrum and we get a thermal, and so statistical, shap... |
0906.4231 | Hannu Paukkunen | Kari J. Eskola, Hannu Paukkunen, Carlos A. Salgado | EPS09 - Nuclear PDFs and Their Uncertainties at NLO | 4 pages, 4 figures - To appear in the conference proceedings for
Quark Matter 2009, March 30 - April 4, Knoxville, Tennessee | Nucl.Phys.A830:599c-602c,2009 | 10.1016/j.nuclphysa.2009.10.054 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this talk, we present our recent next-to-leading order (NLO) nuclear
parton distribution functions (nPDFs), which we call EPS09. As an extension to
earlier NLO analyses, we supplement the deep inelastic scattering and Drell-Yan
dilepton data by inclusive midrapidity pion measurements from RHIC in order to
reduce t... | [
{
"created": "Tue, 23 Jun 2009 11:41:18 GMT",
"version": "v1"
},
{
"created": "Mon, 21 Sep 2009 08:23:58 GMT",
"version": "v2"
}
] | 2009-11-18 | [
[
"Eskola",
"Kari J.",
""
],
[
"Paukkunen",
"Hannu",
""
],
[
"Salgado",
"Carlos A.",
""
]
] | In this talk, we present our recent next-to-leading order (NLO) nuclear parton distribution functions (nPDFs), which we call EPS09. As an extension to earlier NLO analyses, we supplement the deep inelastic scattering and Drell-Yan dilepton data by inclusive midrapidity pion measurements from RHIC in order to reduce the... |
0803.2664 | Florian Bauer | Florian Bauer and Durmus A. Demir | Inflation with Non-Minimal Coupling: Metric vs. Palatini Formulations | 13 pages, reference added | Phys.Lett.B665:222-226,2008 | 10.1016/j.physletb.2008.06.014 | DESY 08-033, IZTECH-P-08/02 | hep-ph astro-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We analyze non-minimally coupled scalar field theories in metric
(second-order) and Palatini (first-order) formalisms in a comparative fashion.
After contrasting them in a general setup, we specialize to inflation and find
that the two formalisms differ in their predictions for various cosmological
parameters. The ma... | [
{
"created": "Tue, 18 Mar 2008 15:55:28 GMT",
"version": "v1"
},
{
"created": "Fri, 13 Jun 2008 07:30:05 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Bauer",
"Florian",
""
],
[
"Demir",
"Durmus A.",
""
]
] | We analyze non-minimally coupled scalar field theories in metric (second-order) and Palatini (first-order) formalisms in a comparative fashion. After contrasting them in a general setup, we specialize to inflation and find that the two formalisms differ in their predictions for various cosmological parameters. The main... |
0811.0485 | Carlos E. Yaguna | Carlos E. Yaguna | Inverse decays and the relic density of the sterile sneutrino | 15 pages, 4 figures | Phys.Lett.B669:139-144,2008 | 10.1016/j.physletb.2008.09.048 | IFT-UAM/CSIC-08-72 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a weak scale supersymmetric seesaw model where the Higgsino is
the next-to-lightest supersymmetric particle and the right-handed sneutrino is
the dark matter candidate. It is shown that, in this model, inverse decays,
which had been previously neglected, may suppress the sneutrino relic density
by several... | [
{
"created": "Tue, 4 Nov 2008 11:58:27 GMT",
"version": "v1"
}
] | 2011-01-25 | [
[
"Yaguna",
"Carlos E.",
""
]
] | We consider a weak scale supersymmetric seesaw model where the Higgsino is the next-to-lightest supersymmetric particle and the right-handed sneutrino is the dark matter candidate. It is shown that, in this model, inverse decays, which had been previously neglected, may suppress the sneutrino relic density by several o... |
1001.2887 | Alexander Smirnov | R.N. Lee, A.V. Smirnov, V.A. Smirnov | Analytic Results for Massless Three-Loop Form Factors | minor revisions, to appear in JHEP | JHEP 1004:020,2010 | 10.1007/JHEP04(2010)020 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We evaluate, exactly in d, the master integrals contributing to massless
three-loop QCD form factors. The calculation is based on a combination of a
method recently suggested by one of the authors (R.L.) with other techniques:
sector decomposition implemented in FIESTA, the method of Mellin--Barnes
representation, an... | [
{
"created": "Sun, 17 Jan 2010 11:00:10 GMT",
"version": "v1"
},
{
"created": "Fri, 12 Mar 2010 10:37:44 GMT",
"version": "v2"
}
] | 2015-03-13 | [
[
"Lee",
"R. N.",
""
],
[
"Smirnov",
"A. V.",
""
],
[
"Smirnov",
"V. A.",
""
]
] | We evaluate, exactly in d, the master integrals contributing to massless three-loop QCD form factors. The calculation is based on a combination of a method recently suggested by one of the authors (R.L.) with other techniques: sector decomposition implemented in FIESTA, the method of Mellin--Barnes representation, and ... |
1009.1998 | Sacha Davidson | Sacha Davidson and Sebastien Descotes-Genon | Minimal Flavour Violation for Leptoquarks | 17 pages, 2 figures, minor changes and references added | JHEP 1011:073,2010 | 10.1007/JHEP11(2010)073 | LPT-ORSAY/10-72 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Scalar leptoquarks, with baryon and lepton number conserving interactions,
could have TeV scale masses, and be produced at colliders or contribute to a
wide variety of rare decays. In pursuit of some insight as to the most
sensitive search channels, We assume that the leptoquark-lepton-quark coupling
can be construct... | [
{
"created": "Fri, 10 Sep 2010 12:43:49 GMT",
"version": "v1"
},
{
"created": "Wed, 29 Sep 2010 10:25:44 GMT",
"version": "v2"
}
] | 2011-03-17 | [
[
"Davidson",
"Sacha",
""
],
[
"Descotes-Genon",
"Sebastien",
""
]
] | Scalar leptoquarks, with baryon and lepton number conserving interactions, could have TeV scale masses, and be produced at colliders or contribute to a wide variety of rare decays. In pursuit of some insight as to the most sensitive search channels, We assume that the leptoquark-lepton-quark coupling can be constructed... |
hep-ph/9406240 | Frans Klinkhamer | F. R. Klinkhamer | Another Look at the Electroweak Vortex Solution | Latex, 6 pages, preprint NIKHEF-H / 94-19 | null | null | null | hep-ph | null | We discuss the position in configuration space of the electroweak vortex
solution. (Talk given at the NATO Advanced Research Workshop "Electroweak
Physics and the Early Universe", Sintra, Portugal, March 1994)
| [
{
"created": "Tue, 7 Jun 1994 11:29:11 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Klinkhamer",
"F. R.",
""
]
] | We discuss the position in configuration space of the electroweak vortex solution. (Talk given at the NATO Advanced Research Workshop "Electroweak Physics and the Early Universe", Sintra, Portugal, March 1994) |
0710.1696 | S. Descotes-Genon | S. Descotes-Genon (Orsay, LPT) | pi-pi and pi-K scatterings in three-flavour resummed chiral perturbation
theory | Proceedings of the EPS-HEP 2007 Conference, Manchester (UK). 3 pages,
1 figure | J.Phys.Conf.Ser.110:052012,2008 | 10.1088/1742-6596/110/5/052012 | LPT-ORSAY 07-78 | hep-ph | null | The (light but not-so-light) strange quark may play a special role in the
low-energy dynamics of QCD. The presence of strange quark pairs in the sea may
have a significant impact of the pattern of chiral symmetry breaking : in
particular large differences can occur between the chiral limits of two and
three massless ... | [
{
"created": "Tue, 9 Oct 2007 08:27:11 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Descotes-Genon",
"S.",
"",
"Orsay, LPT"
]
] | The (light but not-so-light) strange quark may play a special role in the low-energy dynamics of QCD. The presence of strange quark pairs in the sea may have a significant impact of the pattern of chiral symmetry breaking : in particular large differences can occur between the chiral limits of two and three massless fl... |
2402.19221 | Hua-Sheng Shao | Ajjath A H, Hua-Sheng Shao, and Lukas Simon | FKS subtraction for quarkonium production at NLO | 53 pages, 2 figures, v2 (journal version) | JHEP 07 (2024) 050 | 10.1007/JHEP07(2024)050 | null | hep-ph | http://creativecommons.org/licenses/by/4.0/ | We extend the local infrared-divergence subtraction formalism, originally
proposed by Frixione, Kunszt and Signer (FKS), to calculate short-distance
(differential) cross section for any inclusive process involving a quarkonium
particle in non-relativistic QCD (NRQCD) factorisation at next-to-leading order
(NLO) accur... | [
{
"created": "Thu, 29 Feb 2024 14:53:46 GMT",
"version": "v1"
},
{
"created": "Sat, 6 Jul 2024 10:55:37 GMT",
"version": "v2"
}
] | 2024-07-09 | [
[
"H",
"Ajjath A",
""
],
[
"Shao",
"Hua-Sheng",
""
],
[
"Simon",
"Lukas",
""
]
] | We extend the local infrared-divergence subtraction formalism, originally proposed by Frixione, Kunszt and Signer (FKS), to calculate short-distance (differential) cross section for any inclusive process involving a quarkonium particle in non-relativistic QCD (NRQCD) factorisation at next-to-leading order (NLO) accurac... |
1609.03830 | Samuel Wallon | R. Boussarie, B. Pire, L. Szymanowski, S. Wallon | Exclusive photoproduction of a $\gamma\,\rho$ pair with a large
invariant mass | published version; 54 pages, 23 figures. The cross section for the
exclusive photoproduction of a $\gamma\,\rho$ pair, in the case where the
final $\rho$-meson is longitudinally polarized, has been corrected | null | 10.1007/JHEP02(2017)054 | CPHT-RR038.072016, LPT-Orsay-16-58 | hep-ph hep-ex nucl-ex nucl-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Exclusive photoproduction of a $\gamma\,\rho$ pair in the kinematics where
the pair has a large invariant mass and the final nucleon has a small
transverse momentum is described in the collinear factorization framework. The
scattering amplitude is calculated at leading order in $\alpha_s$ and the
differential cross s... | [
{
"created": "Tue, 13 Sep 2016 13:48:21 GMT",
"version": "v1"
},
{
"created": "Sun, 26 Feb 2017 09:42:22 GMT",
"version": "v2"
},
{
"created": "Mon, 3 Sep 2018 15:40:38 GMT",
"version": "v3"
}
] | 2018-09-05 | [
[
"Boussarie",
"R.",
""
],
[
"Pire",
"B.",
""
],
[
"Szymanowski",
"L.",
""
],
[
"Wallon",
"S.",
""
]
] | Exclusive photoproduction of a $\gamma\,\rho$ pair in the kinematics where the pair has a large invariant mass and the final nucleon has a small transverse momentum is described in the collinear factorization framework. The scattering amplitude is calculated at leading order in $\alpha_s$ and the differential cross sec... |
hep-ph/0610299 | Urs M. Heller | Urs M. Heller | 2+1 flavor simulations of QCD with improved staggered quarks | To appear in the proceedings of QNP06, IVth International Conference
on Quarks and Nuclear Physics, Madrid, June 2006 | Eur.Phys.J.A31:769-772,2007 | 10.1140/epja/i2006-10222-6 | null | hep-ph hep-lat | null | The MILC collaboration has been performing realistic simulations of full QCD
with 2+1 flavors of improved staggered quarks. Our simulations allow for
controlled continuum and chiral extrapolations. I present results for the light
pseudoscalar sector: masses and decay constants, quark masses and
Gasser-Leutwyler low-e... | [
{
"created": "Mon, 23 Oct 2006 18:56:49 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Heller",
"Urs M.",
""
]
] | The MILC collaboration has been performing realistic simulations of full QCD with 2+1 flavors of improved staggered quarks. Our simulations allow for controlled continuum and chiral extrapolations. I present results for the light pseudoscalar sector: masses and decay constants, quark masses and Gasser-Leutwyler low-ene... |
hep-ph/0310150 | Philip G. Ratcliffe | Philip G. Ratcliffe | QCD and Transverse-Spin Physics | Talk at the International Workshop on QCD: QCD@Work 2003 - Conversano
(Italy) 14-18 June 2003 (eConf C030614). LaTeX2e; 8 pages; uses standard
LaTeX macros (including psfrag), conference class file wqcd03.cls, and some
personal macros (included). Figures are eps and feynmp generated (included in
subfolders) | null | null | null | hep-ph | null | A pedagogical presentation of single-spin asymmetries and transversity is
offered. Detailed discussion is given of various aspects of single-spin
asymmetries in lepton-nucleon and in hadron-hadron scattering and of the role
of perturbative QCD and evolution in the context of transversity.
| [
{
"created": "Mon, 13 Oct 2003 16:22:09 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Ratcliffe",
"Philip G.",
""
]
] | A pedagogical presentation of single-spin asymmetries and transversity is offered. Detailed discussion is given of various aspects of single-spin asymmetries in lepton-nucleon and in hadron-hadron scattering and of the role of perturbative QCD and evolution in the context of transversity. |
hep-ph/0005188 | Francesco Terranova | Francesco Terranova | The impact of LEP 2 data on possible anomalous enhancements of Re e'/e | 9 pages, 3 figures | Phys.Lett. B500 (2001) 113-117 | 10.1016/S0370-2693(01)00063-6 | null | hep-ph | null | It has been shown in the past that the real part of the e'/e ratio is
particularly sensitive to anomalous gauge couplings that modify the Standard
Model Lagrangian. Due to the loose bounds on these couplings coming from low
energy processes and to the poor sensitivity of hadron colliders to couplings
such as $\Delta ... | [
{
"created": "Thu, 18 May 2000 14:23:50 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Terranova",
"Francesco",
""
]
] | It has been shown in the past that the real part of the e'/e ratio is particularly sensitive to anomalous gauge couplings that modify the Standard Model Lagrangian. Due to the loose bounds on these couplings coming from low energy processes and to the poor sensitivity of hadron colliders to couplings such as $\Delta g_... |
1206.5375 | Patrick K. S. Vaudrevange | Mu-Chun Chen, Michael Ratz, Christian Staudt, Patrick K. S.
Vaudrevange | The mu term and neutrino masses | 24 pages | null | 10.1016/j.nuclphysb.2012.08.018 | UCI-TR-2012-08; TUM-HEP 845/12; DESY-12-108 | hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The well-known Giudice-Masiero mechanism explains the presence of a mu term
of the order of the gravitino mass, but does not explain why the holomorphic
mass term is absent in the superpotential. We discuss anomaly-free discrete
symmetries which are both compatible with SU(5) unification of matter and the
Giudice-Mas... | [
{
"created": "Sat, 23 Jun 2012 10:17:59 GMT",
"version": "v1"
},
{
"created": "Tue, 3 Jul 2012 13:58:10 GMT",
"version": "v2"
}
] | 2015-06-05 | [
[
"Chen",
"Mu-Chun",
""
],
[
"Ratz",
"Michael",
""
],
[
"Staudt",
"Christian",
""
],
[
"Vaudrevange",
"Patrick K. S.",
""
]
] | The well-known Giudice-Masiero mechanism explains the presence of a mu term of the order of the gravitino mass, but does not explain why the holomorphic mass term is absent in the superpotential. We discuss anomaly-free discrete symmetries which are both compatible with SU(5) unification of matter and the Giudice-Masie... |
2407.13639 | Niyati Venkatesan | Kimmo Kainulainen, Niyati Venkatesan | Systematic moment expansion for electroweak baryogenesis | 24 pages, 8 figures | null | null | null | hep-ph astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a systematic moment expansion for solving the semiclassical
Boltzmann equations for electroweak baryogenesis. The expansion is developed in
powers of adiabatic coordinate velocity, and it is used for computing the
CP-violating seed asymmetry at the front of the phase transition wall, that
sources the event... | [
{
"created": "Thu, 18 Jul 2024 16:17:29 GMT",
"version": "v1"
}
] | 2024-07-19 | [
[
"Kainulainen",
"Kimmo",
""
],
[
"Venkatesan",
"Niyati",
""
]
] | We present a systematic moment expansion for solving the semiclassical Boltzmann equations for electroweak baryogenesis. The expansion is developed in powers of adiabatic coordinate velocity, and it is used for computing the CP-violating seed asymmetry at the front of the phase transition wall, that sources the eventua... |
2110.04271 | Tae Hyun Jung | Tae Hyun Jung and Takemichi Okui | Primordial black holes from bubble collisions during a first-order phase
transition | 6 pages + 10 pages of supplemental material, 7 figures, v3: Major
revision with significant improvement in presentation and analysis.
Conclusion unchanged | null | null | KEK-TH-2350 | hep-ph | http://creativecommons.org/licenses/by/4.0/ | We find that collisions of near-horizon-sized bubbles with a thick fluid
shell can produce primordial black holes (PBHs) during a first-order phase
transition. We predict an approximately monochromatic PBH mass spectrum. In
terms of a few parameters to be obtained from future numerical simulation, we
estimate the PBH... | [
{
"created": "Fri, 8 Oct 2021 17:33:54 GMT",
"version": "v1"
},
{
"created": "Fri, 12 Nov 2021 22:38:57 GMT",
"version": "v2"
},
{
"created": "Tue, 26 Dec 2023 17:52:15 GMT",
"version": "v3"
}
] | 2023-12-27 | [
[
"Jung",
"Tae Hyun",
""
],
[
"Okui",
"Takemichi",
""
]
] | We find that collisions of near-horizon-sized bubbles with a thick fluid shell can produce primordial black holes (PBHs) during a first-order phase transition. We predict an approximately monochromatic PBH mass spectrum. In terms of a few parameters to be obtained from future numerical simulation, we estimate the PBH a... |
2005.08816 | Xi-Jie Zhan | Xi-Jie Zhan, Jian-Xiong Wang | Prompt $J/\psi$ photoproduction within the non-relativistic QCD
framework at the CEPC | null | null | 10.1140/epjc/s10052-020-8276-0 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The prompt $J/\psi$ photoproduction within the non-relativistic QCD (NRQCD)
framework at the future Circular Electron Positron Collider (CEPC) is studied,
including the contributions from both direct and resolved photons. Employing
different sets of long distance matrix elements, the total cross section is
dominated ... | [
{
"created": "Mon, 18 May 2020 15:49:39 GMT",
"version": "v1"
}
] | 2021-02-03 | [
[
"Zhan",
"Xi-Jie",
""
],
[
"Wang",
"Jian-Xiong",
""
]
] | The prompt $J/\psi$ photoproduction within the non-relativistic QCD (NRQCD) framework at the future Circular Electron Positron Collider (CEPC) is studied, including the contributions from both direct and resolved photons. Employing different sets of long distance matrix elements, the total cross section is dominated by... |
2204.07802 | Yu Zhang | Yu Zhang, Mao Song, Ran Ding, Liangwen Chen | Neutrino dipole portal at electron colliders | 11 pages, 3 figures, accepted for publication in Physics Letters B | null | 10.1016/j.physletb.2022.137116 | null | hep-ph | http://creativecommons.org/licenses/by/4.0/ | We propose to search for a heavy neutral lepton (HNL), that is also know as
sterile neutrino, in electron colliders running with the center-of-mass
energies at few GeV, including BESIII, Belle II, and the proposed Super Tau
Charm Factory (STCF). We consider the HNL interacting with Standard Model
neutrino and photon ... | [
{
"created": "Sat, 16 Apr 2022 14:01:37 GMT",
"version": "v1"
}
] | 2022-05-11 | [
[
"Zhang",
"Yu",
""
],
[
"Song",
"Mao",
""
],
[
"Ding",
"Ran",
""
],
[
"Chen",
"Liangwen",
""
]
] | We propose to search for a heavy neutral lepton (HNL), that is also know as sterile neutrino, in electron colliders running with the center-of-mass energies at few GeV, including BESIII, Belle II, and the proposed Super Tau Charm Factory (STCF). We consider the HNL interacting with Standard Model neutrino and photon vi... |
hep-ph/9602308 | Oleg Kalashnikov | O.K.Kalashnikov | Magnetic Mass in Hot Scalar Electrodynamics | 6 pages, Latex | null | null | BI-TH 96/09 | hep-ph hep-th | null | Using the Slavnov-Taylor identities we prove that the so-called "magnetic
mass" is exactly equal to zero within hot scalar electrodynamics. The same
result is valid for hot QED and seems for any abelian theory but this is not
the case for hot QCD where one expects that $\m\ne 0$.
| [
{
"created": "Wed, 14 Feb 1996 14:20:54 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Kalashnikov",
"O. K.",
""
]
] | Using the Slavnov-Taylor identities we prove that the so-called "magnetic mass" is exactly equal to zero within hot scalar electrodynamics. The same result is valid for hot QED and seems for any abelian theory but this is not the case for hot QCD where one expects that $\m\ne 0$. |
1809.04038 | Andrzej Kup\'s\'c Dr | Elisabetta Perotti, G\"oran F\"aldt, Andrzej Kup\'s\'c, Stefan Leupold
(Uppsala U.) and Jiao Jiao Song (Shandong U. and Beijing, Inst. High Energy
Phys.) | Polarization observables in $e^+e^-$ annihilation to a baryon-antibaryon
pair | 16 pages;update: 1 figure, extended introduction and examples,
results not changed | Phys. Rev. D 99, 056008 (2019) | 10.1103/PhysRevD.99.056008 | null | hep-ph hep-ex nucl-ex | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Using the helicity formalism of Jacob and Wick we derive spin density
matrices of baryon antibaryon pairs produced in $e^+e^-$ annihilation. We
consider the production of pairs with spins $1/2+\overline{1/2}$,
$1/2+\overline{3/2}$ (+c.c.) and $3/2+\overline{3/2}$. We provide modular
expressions to include chains of w... | [
{
"created": "Tue, 11 Sep 2018 17:08:42 GMT",
"version": "v1"
},
{
"created": "Thu, 28 Feb 2019 03:23:12 GMT",
"version": "v2"
}
] | 2019-03-27 | [
[
"Perotti",
"Elisabetta",
"",
"Uppsala U."
],
[
"Fäldt",
"Göran",
"",
"Uppsala U."
],
[
"Kupść",
"Andrzej",
"",
"Uppsala U."
],
[
"Leupold",
"Stefan",
"",
"Uppsala U."
],
[
"Song",
"Jiao Jiao",
"",
"Shandong U. and Beij... | Using the helicity formalism of Jacob and Wick we derive spin density matrices of baryon antibaryon pairs produced in $e^+e^-$ annihilation. We consider the production of pairs with spins $1/2+\overline{1/2}$, $1/2+\overline{3/2}$ (+c.c.) and $3/2+\overline{3/2}$. We provide modular expressions to include chains of wea... |
hep-ph/9706452 | Nestor Armesto | N. Armesto and A. Capella | Interpretations of $J/\psi$ suppression | 12 pages, LaTeX, uses epsfig and ioplppt; review talk given by A.
Capella at the International Symposium on Strangness in Quark Matter,
Santorini (Greece), April 1997; Figs. 1 and 2 not available but can be found
in Refs. 13 and 6 respectively | J.Phys.G23:1969-1977,1997 | 10.1088/0954-3899/23/12/022 | LPTHE Orsay 97/31 | hep-ph | null | We review the two main interpretations of $J/\psi$ suppression proposed in
the literature. The phase transition (or deconfining) scenario assumes that
below some critical value of the local energy density (or of some other
geometrical quantity which depends both on the colliding systems and on the
centrality of the c... | [
{
"created": "Mon, 23 Jun 1997 09:31:56 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Armesto",
"N.",
""
],
[
"Capella",
"A.",
""
]
] | We review the two main interpretations of $J/\psi$ suppression proposed in the literature. The phase transition (or deconfining) scenario assumes that below some critical value of the local energy density (or of some other geometrical quantity which depends both on the colliding systems and on the centrality of the col... |
hep-ph/0210400 | Stephen Godfrey | Stephen Godfrey (Carleton University, DESY) | Topics in Meson Spectroscopy | Invited talk given at 31st International Conference on High Energy
Physics (ICHEP 2002), Amsterdam, The Netherlands, 24-31 Jul 2002 | null | 10.1016/S0920-5632(03)90640-2 | DESY 02-170 | hep-ph | null | In this mini-review I discuss three topics in meson spectroscopy. The
production of heavy quarkonium states, S-wave scattering below 1 GeV, and
exotic hybrid meson production. This is not intended to be a comprehensive
review, just an overview of several topics of current interest.
| [
{
"created": "Tue, 29 Oct 2002 10:33:38 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Godfrey",
"Stephen",
"",
"Carleton University, DESY"
]
] | In this mini-review I discuss three topics in meson spectroscopy. The production of heavy quarkonium states, S-wave scattering below 1 GeV, and exotic hybrid meson production. This is not intended to be a comprehensive review, just an overview of several topics of current interest. |
1105.4984 | Sanjib Kumar Agarwalla | Sanjib Kumar Agarwalla, J.M. Conrad, M.H. Shaevitz | Short-baseline Neutrino Oscillation Waves in Ultra-large Liquid
Scintillator Detectors | 24 pages, 8 figures, 9 tables | null | 10.1007/JHEP12(2011)085 | EURONU-WP6-11-32, IFIC/11-22 | hep-ph hep-ex physics.ins-det | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Powerful new multi-kiloton liquid scintillator neutrino detectors, including
NOvA and LENA, will come on-line within the next decade. When these are coupled
with a modest-power decay-at-rest (DAR) neutrino source at short-baseline,
these detectors can decisively address the recent ambiguous signals for
neutrino oscil... | [
{
"created": "Wed, 25 May 2011 10:07:33 GMT",
"version": "v1"
}
] | 2015-05-28 | [
[
"Agarwalla",
"Sanjib Kumar",
""
],
[
"Conrad",
"J. M.",
""
],
[
"Shaevitz",
"M. H.",
""
]
] | Powerful new multi-kiloton liquid scintillator neutrino detectors, including NOvA and LENA, will come on-line within the next decade. When these are coupled with a modest-power decay-at-rest (DAR) neutrino source at short-baseline, these detectors can decisively address the recent ambiguous signals for neutrino oscilla... |
1707.09886 | Yang Ma | Yang Ma, Xing-Gang Wu | Renormalization scheme dependence of high-Order perturbative QCD
predictions | 7 Page, 6 figures. Revised version to be published in Phys.Rev.D | Phys. Rev. D 97, 036024 (2018) | 10.1103/PhysRevD.97.036024 | PITT PACC-1708 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Conventionally, one adopts typical momentum flow of a physical observable as
the renormalization scale for its perturbative QCD (pQCD) approximant. This
simple treatment leads to renormalization scheme-and-scale ambiguities due to
the renormalization scheme and scale dependence of the strong coupling and the
perturba... | [
{
"created": "Mon, 31 Jul 2017 14:36:08 GMT",
"version": "v1"
},
{
"created": "Tue, 2 Jan 2018 07:33:46 GMT",
"version": "v2"
},
{
"created": "Fri, 2 Mar 2018 04:56:27 GMT",
"version": "v3"
}
] | 2018-03-05 | [
[
"Ma",
"Yang",
""
],
[
"Wu",
"Xing-Gang",
""
]
] | Conventionally, one adopts typical momentum flow of a physical observable as the renormalization scale for its perturbative QCD (pQCD) approximant. This simple treatment leads to renormalization scheme-and-scale ambiguities due to the renormalization scheme and scale dependence of the strong coupling and the perturbati... |
hep-ph/0407134 | Szymanowski Lech dr | M. Diehl, B. Pire, L.Szymanowski | Exclusive Electroproduction of Pentaquarks | 6 pages LATEX, 2 .eps figures, talk presented at DIS04, Strbske
Pleso, Slovakia, April 2004 | null | null | null | hep-ph | null | Exclusive electroproduction of a K or K^* meson on the nucleon can give a
Theta^+ pentaquark in the final state. This reaction offers an opportunity to
investigate the structure of pentaquark baryons at parton level. We discuss the
generalized parton distributions for the N -> Theta^+ transition and give the
leading ... | [
{
"created": "Mon, 12 Jul 2004 14:42:58 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Diehl",
"M.",
""
],
[
"Pire",
"B.",
""
],
[
"Szymanowski",
"L.",
""
]
] | Exclusive electroproduction of a K or K^* meson on the nucleon can give a Theta^+ pentaquark in the final state. This reaction offers an opportunity to investigate the structure of pentaquark baryons at parton level. We discuss the generalized parton distributions for the N -> Theta^+ transition and give the leading or... |
1905.02564 | Murat Koksal | M. K\"oksal, A. A. Billur, A. Guti\'errez-Rodr\'iguez and M. A.
Hern\'andez-Ru\'iz | Sensitivity measuring expected on the electromagnetic anomalous
couplings in the $t\bar t\gamma$ vertex at the FCC-he | 28 pages, 10 figures and 7 tables. arXiv admin note: text overlap
with arXiv:1812.08971 | null | 10.1142/S0217751X2050178X | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we consider the electroweak production cross-section of a
single anti-top-quark, a neutrino and a photon via charged current through the
$e^-p \to e^-\bar b \to \bar t \nu_e \gamma \to \bar t(\to W^- \to (qq', l^-
\bar\nu_l)+b) \nu_e\gamma$ signal. Further, we derived the sensitivity expected
to the ma... | [
{
"created": "Sun, 5 May 2019 17:59:06 GMT",
"version": "v1"
}
] | 2020-10-28 | [
[
"Köksal",
"M.",
""
],
[
"Billur",
"A. A.",
""
],
[
"Gutiérrez-Rodríguez",
"A.",
""
],
[
"Hernández-Ruíz",
"M. A.",
""
]
] | In this paper, we consider the electroweak production cross-section of a single anti-top-quark, a neutrino and a photon via charged current through the $e^-p \to e^-\bar b \to \bar t \nu_e \gamma \to \bar t(\to W^- \to (qq', l^- \bar\nu_l)+b) \nu_e\gamma$ signal. Further, we derived the sensitivity expected to the magn... |
hep-ph/9608225 | Masashi Hayakawa | M. Hayakawa ( KEK ) | Remarks on the Hadronic Effect in Muon $g-2$: Low Energy Behavior of
$V^0 $-$\pi^+$ Scattering | 12 pages, REVTEX, 4 figures, Title and some other minor changes ( to
appear in Phys. Rev. D ) | Phys.Rev.D54:6586-6590,1996 | 10.1103/PhysRevD.54.R6586 | KEK-TH-491, KEK Preprint 96-93 | hep-ph | null | The behavior of the $V^0$-$\pi^+$ scattering amplitude (where $V^0 = \rho^0 ,
\omega$ , or $\phi$) in the low pion momentum limit is studied motivated by its
relevance to the theory of muon $g - 2$. Current algebra analysis shows that
its S-wave component must vanish in the chiral limit under general physical
assumpt... | [
{
"created": "Mon, 5 Aug 1996 04:25:55 GMT",
"version": "v1"
},
{
"created": "Sat, 12 Oct 1996 07:58:01 GMT",
"version": "v2"
},
{
"created": "Mon, 14 Oct 1996 03:58:22 GMT",
"version": "v3"
}
] | 2009-12-30 | [
[
"Hayakawa",
"M.",
"",
"KEK"
]
] | The behavior of the $V^0$-$\pi^+$ scattering amplitude (where $V^0 = \rho^0 , \omega$ , or $\phi$) in the low pion momentum limit is studied motivated by its relevance to the theory of muon $g - 2$. Current algebra analysis shows that its S-wave component must vanish in the chiral limit under general physical assumptio... |
hep-ph/9703252 | Peter Kroll | Jan Bolz and Peter Kroll | Exclusive J/Psi and Psi'decays into baryon-antibaryon pairs | 20 pages, 7 postscript figures, amstex | Eur.Phys.J.C2:545-556,1998 | 10.1007/s100520050160 | WU B 97-2 | hep-ph | null | Within a perturbative approach we investigate decays of charmonium states
into baryon-antibaryon pairs. Using a recently proposed wave function for the
nucleon and suitable generalizations of it to the hyperons and decouplet
baryons, we obtain the decay widths for the baryon-antibaryon channels in
reasonable agreemen... | [
{
"created": "Thu, 6 Mar 1997 10:51:14 GMT",
"version": "v1"
}
] | 2010-11-19 | [
[
"Bolz",
"Jan",
""
],
[
"Kroll",
"Peter",
""
]
] | Within a perturbative approach we investigate decays of charmonium states into baryon-antibaryon pairs. Using a recently proposed wave function for the nucleon and suitable generalizations of it to the hyperons and decouplet baryons, we obtain the decay widths for the baryon-antibaryon channels in reasonable agreement ... |
hep-ph/0204247 | Biswajoy Brahmachari | Biswajoy Brahmachari (Vidyasagar Evening College) | E_6 multiplets and unification in extra dimensions | Latex, eps figures | Acta Phys.Polon. B36 (2005) 1997-2004 | null | SINP/TNP/02-14 | hep-ph hep-th | null | We study the effect of all matter multiplets contained in {\bf 27}
representation of $E_6$ GUT on gauge coupling unification in extra dimensions.
Extra members of {\bf 27} multiplets of all three generations have their `zero
modes' near $m_t$ such that they can be directly probed. From TeV scale onwards
extra dimensi... | [
{
"created": "Mon, 22 Apr 2002 08:35:23 GMT",
"version": "v1"
},
{
"created": "Mon, 6 Jun 2005 11:11:22 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Brahmachari",
"Biswajoy",
"",
"Vidyasagar Evening College"
]
] | We study the effect of all matter multiplets contained in {\bf 27} representation of $E_6$ GUT on gauge coupling unification in extra dimensions. Extra members of {\bf 27} multiplets of all three generations have their `zero modes' near $m_t$ such that they can be directly probed. From TeV scale onwards extra dimension... |
0707.0824 | Sergey Afonin | S. S. Afonin | Properties of new unflavored mesons below 2.4 GeV | 5 pages, to appear in Phys. Rev. C XX, 005200 (2007) | Phys.Rev.C76:015202,2007 | 10.1103/PhysRevC.76.015202 | null | hep-ph | null | The global features of spectrum of highly excited light nonstrange mesons can
be well understood within both chiral symmetry restoration scenario combined
with the relation $M^2\sim J+n$ and within nonrelativistic description based on
the relation $M^2\sim L+n$. The predictions of these two alternative
classification... | [
{
"created": "Thu, 5 Jul 2007 16:38:45 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Afonin",
"S. S.",
""
]
] | The global features of spectrum of highly excited light nonstrange mesons can be well understood within both chiral symmetry restoration scenario combined with the relation $M^2\sim J+n$ and within nonrelativistic description based on the relation $M^2\sim L+n$. The predictions of these two alternative classifications ... |
2103.15079 | Xiaorui Wong | Xiaorui Wong and Yongsheng Huang | Dark photon production via $\gamma \gamma \rightarrow \gamma A'$ | null | Eur. Phys. J. C 81, 442 (2021) | 10.1140/epjc/s10052-021-09228-z | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The dark photon is a new gauge boson which arises from an extra U'(1) gauge
symmetry. In this paper, a novel dark photon production mechanism based on
MeV-scale $\gamma$-$\gamma$ collider is considered: $\gamma \gamma \rightarrow
\gamma A'$. With the aid of PACKAGE-X, differential cross section of $\gamma
\gamma \rig... | [
{
"created": "Sun, 28 Mar 2021 08:14:50 GMT",
"version": "v1"
},
{
"created": "Mon, 10 May 2021 15:39:48 GMT",
"version": "v2"
}
] | 2021-05-25 | [
[
"Wong",
"Xiaorui",
""
],
[
"Huang",
"Yongsheng",
""
]
] | The dark photon is a new gauge boson which arises from an extra U'(1) gauge symmetry. In this paper, a novel dark photon production mechanism based on MeV-scale $\gamma$-$\gamma$ collider is considered: $\gamma \gamma \rightarrow \gamma A'$. With the aid of PACKAGE-X, differential cross section of $\gamma \gamma \right... |
1208.0987 | Oleg Antipin A | Oleg Antipin, Matin Mojaza, Francesco Sannino | Jumping Out of the Light-Higgs Conformal Window | 24 pages, 5 figures, minor corrections to match published version | null | 10.1103/PhysRevD.87.096005 | CP3-Origins-2012-21; DIAS-2012-22 | hep-ph hep-lat hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate generic properties of the conformal phase transition in gauge
theories featuring Higgs-like fundamental particles. These theories provide an
excellent arena to properly investigate conformal dynamics and discover novel
features. We show that the phase transition at the boundary of the Higgs
conformal w... | [
{
"created": "Sun, 5 Aug 2012 07:48:47 GMT",
"version": "v1"
},
{
"created": "Fri, 14 Jun 2013 11:46:29 GMT",
"version": "v2"
}
] | 2013-06-17 | [
[
"Antipin",
"Oleg",
""
],
[
"Mojaza",
"Matin",
""
],
[
"Sannino",
"Francesco",
""
]
] | We investigate generic properties of the conformal phase transition in gauge theories featuring Higgs-like fundamental particles. These theories provide an excellent arena to properly investigate conformal dynamics and discover novel features. We show that the phase transition at the boundary of the Higgs conformal win... |
hep-ph/0207370 | Gouranga C. Nayak | Fred Cooper (LANL), Chung-Wen Kao (Manchester), and Gouranga C. Nayak
(LANL) | Non-Zero Magnetic Screening Mass in QED and QCD at One Loop Level in
Non-Equilibrium | 12 pages latex, 2 figures | null | null | null | hep-ph hep-lat hep-th nucl-th | null | Using the Schwinger-Keldysh closed time path integral formalism we show that
the magnetic screening mass in QED and QCD at one loop level is non-zero as
long as the single particle distribution function f(\vec{k}) is non-isotropic,
{i.e.} it depends on the direction of the momentum. For isotropic distribution
functio... | [
{
"created": "Wed, 31 Jul 2002 18:17:01 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Cooper",
"Fred",
"",
"LANL"
],
[
"Kao",
"Chung-Wen",
"",
"Manchester"
],
[
"Nayak",
"Gouranga C.",
"",
"LANL"
]
] | Using the Schwinger-Keldysh closed time path integral formalism we show that the magnetic screening mass in QED and QCD at one loop level is non-zero as long as the single particle distribution function f(\vec{k}) is non-isotropic, {i.e.} it depends on the direction of the momentum. For isotropic distribution functions... |
1907.11846 | Adam Coogan | Adam Coogan, Logan Morrison and Stefano Profumo | Hazma: A Python Toolkit for Studying Indirect Detection of Sub-GeV Dark
Matter | Minor revisions; fixed typos in FSR spectra | null | 10.1088/1475-7516/2020/01/056 | null | hep-ph astro-ph.HE physics.comp-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | With several proposed MeV gamma-ray telescopes on the horizon, it is of
paramount importance to perform accurate calculations of gamma-ray spectra
expected from sub-GeV dark matter annihilation and decay. We present hazma, a
python package for reliably computing these spectra, determining the resulting
constraints fr... | [
{
"created": "Sat, 27 Jul 2019 04:17:54 GMT",
"version": "v1"
},
{
"created": "Mon, 16 Sep 2019 21:14:56 GMT",
"version": "v2"
},
{
"created": "Fri, 6 Dec 2019 00:31:31 GMT",
"version": "v3"
}
] | 2020-02-05 | [
[
"Coogan",
"Adam",
""
],
[
"Morrison",
"Logan",
""
],
[
"Profumo",
"Stefano",
""
]
] | With several proposed MeV gamma-ray telescopes on the horizon, it is of paramount importance to perform accurate calculations of gamma-ray spectra expected from sub-GeV dark matter annihilation and decay. We present hazma, a python package for reliably computing these spectra, determining the resulting constraints from... |
1901.04761 | Seungwon Baek | Seungwon Baek | Scalar dark matter behind $b \to s \mu \mu$ anomaly | 26 pages, 14 figures, matches the published version | JHEP 1905 (2019) 104 | 10.1007/JHEP05(2019)104 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We construct a scalar dark matter model with $U(1)_{L_\mu-L_\tau}$ symmetry
in which the dark matter interacts with the quark flavours, allowing lepton
non-universal $b \to s \ell \bar{\ell}$ decays. The model can solve $b \to s
\mu \mu$ ($R_{K^{(*)}}$) anomaly and accommodate the relic abundance of dark
matter simul... | [
{
"created": "Tue, 15 Jan 2019 10:54:16 GMT",
"version": "v1"
},
{
"created": "Tue, 12 Nov 2019 11:54:51 GMT",
"version": "v2"
}
] | 2019-11-13 | [
[
"Baek",
"Seungwon",
""
]
] | We construct a scalar dark matter model with $U(1)_{L_\mu-L_\tau}$ symmetry in which the dark matter interacts with the quark flavours, allowing lepton non-universal $b \to s \ell \bar{\ell}$ decays. The model can solve $b \to s \mu \mu$ ($R_{K^{(*)}}$) anomaly and accommodate the relic abundance of dark matter simulta... |
hep-ph/9909526 | Athenasios Dedes | A. Dedes and S. Moretti (Rutherford Appleton Lab.) | Higgs boson production in association with squark pairs in the MSSM at
the LHC | 4 pages, Talk given by A. Dedes at the XIth Recontres de Blois,
``Frontiers of Matter'', June 27-July 3, 1999, France | null | null | RAL-TR-1999-067 | hep-ph | null | We study neutral and charged Higgs boson production in association with stop
and sbottom squarks at the Large Hadron Collider (LHC), within the so-called
M-SUGRA scenario, i.e., the Supergravity (SUGRA) inspired Minimal
Supersymmetric Standard Model (MSSM). For low values of \tan\beta only the
cases \tilde{t}_1\tilde... | [
{
"created": "Tue, 28 Sep 1999 10:07:48 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Dedes",
"A.",
"",
"Rutherford Appleton Lab."
],
[
"Moretti",
"S.",
"",
"Rutherford Appleton Lab."
]
] | We study neutral and charged Higgs boson production in association with stop and sbottom squarks at the Large Hadron Collider (LHC), within the so-called M-SUGRA scenario, i.e., the Supergravity (SUGRA) inspired Minimal Supersymmetric Standard Model (MSSM). For low values of \tan\beta only the cases \tilde{t}_1\tilde{t... |
1610.10081 | Rome Samanta | Rome Samanta, Mainak Chakraborty, Probir Roy and Ambar Ghosal | Baryon asymmetry via leptogenesis in a neutrino mass model with complex
scaling | 17 pages, 19 figures, effect of $N_2$ leptogenesis is added in Sec.
6, version to appear in JCAP | null | 10.1088/1475-7516/2017/03/025 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Baryogenesis via leptogenesis is investigated in a specific model of light
neutrino masses and mixing angles. The latter was proposed on the basis of an
assumed complex-extended scaling property of the neutrino Majorana mass matrix
$M_\nu$, derived with a type-1 seesaw from a Dirac mass matrix $m_D$ and a
heavy singl... | [
{
"created": "Mon, 31 Oct 2016 19:36:24 GMT",
"version": "v1"
},
{
"created": "Mon, 6 Mar 2017 11:23:07 GMT",
"version": "v2"
}
] | 2017-03-22 | [
[
"Samanta",
"Rome",
""
],
[
"Chakraborty",
"Mainak",
""
],
[
"Roy",
"Probir",
""
],
[
"Ghosal",
"Ambar",
""
]
] | Baryogenesis via leptogenesis is investigated in a specific model of light neutrino masses and mixing angles. The latter was proposed on the basis of an assumed complex-extended scaling property of the neutrino Majorana mass matrix $M_\nu$, derived with a type-1 seesaw from a Dirac mass matrix $m_D$ and a heavy singlet... |
2308.00027 | Jona Ackerschott | Jona Ackerschott, Rahool Kumar Barman, Dorival Gon\c{c}alves, Theo
Heimel, Tilman Plehn | Returning CP-Observables to The Frames They Belong | 25 pages, 7 figures | SciPost Phys. 17, 001 (2024) | 10.21468/SciPostPhys.17.1.001 | null | hep-ph | http://creativecommons.org/licenses/by/4.0/ | Optimal kinematic observables are often defined in specific frames and then
approximated at the reconstruction level. We show how multi-dimensional
unfolding methods allow us to reconstruct these observables in their proper
rest frame and in a probabilistically faithful way. We illustrate our approach
with a measurem... | [
{
"created": "Mon, 31 Jul 2023 18:00:01 GMT",
"version": "v1"
}
] | 2024-07-03 | [
[
"Ackerschott",
"Jona",
""
],
[
"Barman",
"Rahool Kumar",
""
],
[
"Gonçalves",
"Dorival",
""
],
[
"Heimel",
"Theo",
""
],
[
"Plehn",
"Tilman",
""
]
] | Optimal kinematic observables are often defined in specific frames and then approximated at the reconstruction level. We show how multi-dimensional unfolding methods allow us to reconstruct these observables in their proper rest frame and in a probabilistically faithful way. We illustrate our approach with a measuremen... |
2403.02916 | Francesco Rosini | Francesco Rosini, Simone Pacetti, Olga Shekhovtsova, Egle
Tomasi-Gustafsson | Microscopic parametrization of the near threshold oscillations of the
nucleon time-like effective electromagnetic form factors | 8 pages, 4 figures | Eur. Phys. J. A 60, 144 (2024) | 10.1140/epja/s10050-024-01365-9 | null | hep-ph hep-ex nucl-th | http://creativecommons.org/licenses/by/4.0/ | We present an analysis of the recent near threshold BESIII data for the
nucleon time-like effective form factors. The damped oscillation emerging from
the subtraction of the dipole formula is treated in non-perturbative-QCD,
making use of the light cone distribution amplitudes expansion.
Non-perturbative effects are ... | [
{
"created": "Tue, 5 Mar 2024 12:34:29 GMT",
"version": "v1"
},
{
"created": "Tue, 18 Jun 2024 14:53:08 GMT",
"version": "v2"
}
] | 2024-07-12 | [
[
"Rosini",
"Francesco",
""
],
[
"Pacetti",
"Simone",
""
],
[
"Shekhovtsova",
"Olga",
""
],
[
"Tomasi-Gustafsson",
"Egle",
""
]
] | We present an analysis of the recent near threshold BESIII data for the nucleon time-like effective form factors. The damped oscillation emerging from the subtraction of the dipole formula is treated in non-perturbative-QCD, making use of the light cone distribution amplitudes expansion. Non-perturbative effects are ac... |
1006.5950 | Alexander Isayev | A. A. Isayev | Phenomenology of Heavy Flavors in Ultrarelativistic Heavy-Ion Collisions | Based on the lecture given at the Xth International School-Seminar
"The Actual Problems of Microworld Physics", Gomel, Belarus, July 15 - 26,
2009 | null | null | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Some recent experimental results obtained in collisions of heavy nuclei
($\sqrt{s}=200$ GeV) at BNL Relativistic Heavy-Ion Collider (RHIC) are
discussed. The probes of dense matter created in heavy-ion collision by
quarkonia, $D$ and $B$ mesons containing heavy charm and beauty quarks are
considered. The centrality, ... | [
{
"created": "Wed, 30 Jun 2010 18:54:44 GMT",
"version": "v1"
}
] | 2010-07-01 | [
[
"Isayev",
"A. A.",
""
]
] | Some recent experimental results obtained in collisions of heavy nuclei ($\sqrt{s}=200$ GeV) at BNL Relativistic Heavy-Ion Collider (RHIC) are discussed. The probes of dense matter created in heavy-ion collision by quarkonia, $D$ and $B$ mesons containing heavy charm and beauty quarks are considered. The centrality, ra... |
1903.10844 | Christian Fischer | Gernot Eichmann, Christian S. Fischer, Esther Weil, Richard Williams | Single pseudoscalar meson pole and pion box contributions to the
anomalous magnetic moment of the muon | 11 pages, 9 figures; v2: minor changes, diagram added, improved value
for pion-box; version published in PLB | null | 10.1016/j.physletb.2019.134855 | null | hep-ph hep-lat | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present results for single pseudoscalar meson pole contributions and pion
box contributions to the hadronic light-by-light (LBL) correction of the muon's
anomalous magnetic moment. We follow the recently developed dispersive approach
to LBL, where these contributions are evaluated with intermediate mesons
on-shell... | [
{
"created": "Tue, 26 Mar 2019 12:58:06 GMT",
"version": "v1"
},
{
"created": "Fri, 11 Oct 2019 09:03:30 GMT",
"version": "v2"
}
] | 2019-10-14 | [
[
"Eichmann",
"Gernot",
""
],
[
"Fischer",
"Christian S.",
""
],
[
"Weil",
"Esther",
""
],
[
"Williams",
"Richard",
""
]
] | We present results for single pseudoscalar meson pole contributions and pion box contributions to the hadronic light-by-light (LBL) correction of the muon's anomalous magnetic moment. We follow the recently developed dispersive approach to LBL, where these contributions are evaluated with intermediate mesons on-shell. ... |
2105.10279 | Hyun-Chul Kim | June-Young Kim and Hyun-Chul Kim | Energy-momentum tensor of the nucleon on the light front: Abel
tomography case | 10 pages and 5 figures | null | 10.1103/PhysRevD.104.074019 | INHA-NTG-04/2021 | hep-ph hep-ex hep-lat | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the two-dimensional energy-momentum-tensor (EMT) distributions
of the nucleon on the light front, using the Abel transforms of the
three-dimensional EMT ones. We explicitly show that the main features of all
EMT distributions are kept intact in the course of the Abel transform. We also
examine the equi... | [
{
"created": "Fri, 21 May 2021 11:05:39 GMT",
"version": "v1"
}
] | 2021-10-27 | [
[
"Kim",
"June-Young",
""
],
[
"Kim",
"Hyun-Chul",
""
]
] | We investigate the two-dimensional energy-momentum-tensor (EMT) distributions of the nucleon on the light front, using the Abel transforms of the three-dimensional EMT ones. We explicitly show that the main features of all EMT distributions are kept intact in the course of the Abel transform. We also examine the equiva... |
2003.02988 | Hong-Shi Zong | Zu-Qing Wu, Chao-Shi, Jia-Lun Ping, Hong-Shi Zong | The contributions of the vector-channel at finite isospin chemical
potential with the self-consistent mean field approximation | 6 figures, 10 pages | Phys. Rev. D 101, 074008 (2020) | 10.1103/PhysRevD.101.074008 | null | hep-ph nucl-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The self-consistent mean field approximation of two-flavor NJL model, which
introduces a free parameter $\alpha$ ($\alpha$ reflects the weight of different
interaction channels), is employed to investigate the contributions of the
vector-channel at finite isospin chemical potential $\mu_I$ and zero baryon
chemical po... | [
{
"created": "Fri, 6 Mar 2020 01:28:26 GMT",
"version": "v1"
}
] | 2020-04-15 | [
[
"Wu",
"Zu-Qing",
""
],
[
"Chao-Shi",
"",
""
],
[
"Ping",
"Jia-Lun",
""
],
[
"Zong",
"Hong-Shi",
""
]
] | The self-consistent mean field approximation of two-flavor NJL model, which introduces a free parameter $\alpha$ ($\alpha$ reflects the weight of different interaction channels), is employed to investigate the contributions of the vector-channel at finite isospin chemical potential $\mu_I$ and zero baryon chemical pote... |
1701.04597 | Yueling Yang | Junfeng Sun, Yueling Yang, Qingxia Li, Haiyan Li, Qin Chang, Jinshu
Huang | The ${\Upsilon}(nS)$ ${\to}$ $B_{c}D_{s}$, $B_{c}D_{d}$ decays with
perturbative QCD approach | 18 pages, 2 figures. arXiv admin note: text overlap with
arXiv:1604.07040 | Physics Letters B 752, 322-328 (2016) | 10.1016/j.physletb.2015.11.053 | null | hep-ph hep-ex | http://creativecommons.org/licenses/by/4.0/ | The ${\Upsilon}(nS)$ ${\to}$ $B_{c}D_{s}$, $B_{c}D_{d}$ weak decays are
studied with the pQCD approach firstly. It is found that branching ratios
${\cal B}r({\Upsilon}(nS){\to}B_{c}D_{s})$ ${\sim}$ ${\cal O}(10^{-10})$ and
${\cal B}r({\Upsilon}(nS){\to}B_{c}D_{d})$ ${\sim}$ ${\cal O}(10^{-11})$, which
might be measur... | [
{
"created": "Tue, 17 Jan 2017 09:50:49 GMT",
"version": "v1"
}
] | 2017-02-12 | [
[
"Sun",
"Junfeng",
""
],
[
"Yang",
"Yueling",
""
],
[
"Li",
"Qingxia",
""
],
[
"Li",
"Haiyan",
""
],
[
"Chang",
"Qin",
""
],
[
"Huang",
"Jinshu",
""
]
] | The ${\Upsilon}(nS)$ ${\to}$ $B_{c}D_{s}$, $B_{c}D_{d}$ weak decays are studied with the pQCD approach firstly. It is found that branching ratios ${\cal B}r({\Upsilon}(nS){\to}B_{c}D_{s})$ ${\sim}$ ${\cal O}(10^{-10})$ and ${\cal B}r({\Upsilon}(nS){\to}B_{c}D_{d})$ ${\sim}$ ${\cal O}(10^{-11})$, which might be measurab... |
hep-ph/9807453 | Bugra Borasoy | B. Borasoy | Sigma-terms in heavy baryon chiral perturbation theory revisited | 17 pages | Eur.Phys.J.C8:121-130,1999 | 10.1007/s100520050451 | null | hep-ph | null | The $\sigma$-terms are calculated at next-to-leading order in heavy baryon
chiral perturbation theory by employing a cutoff regularization. The results do
not depend on the cutoff value to the order we are working . The baryon masses
and $\sigma_{\pi N}(0)$ are used to perform a least-squares fit to the three
appeari... | [
{
"created": "Tue, 21 Jul 1998 18:31:29 GMT",
"version": "v1"
}
] | 2011-09-13 | [
[
"Borasoy",
"B.",
""
]
] | The $\sigma$-terms are calculated at next-to-leading order in heavy baryon chiral perturbation theory by employing a cutoff regularization. The results do not depend on the cutoff value to the order we are working . The baryon masses and $\sigma_{\pi N}(0)$ are used to perform a least-squares fit to the three appearing... |
hep-ph/9702334 | Tao Han | V. Barger, M.S. Berger, J.F. Gunion and T. Han | Precision W-boson and top-quark mass determinations at a muon collider | 27 pages, 11 figures, postscript file available via anonymous
ftp://ucdhep.ucdavis.edu/han/mumu/mwmt.ps | Phys.Rev.D56:1714-1722,1997 | 10.1103/PhysRevD.56.1714 | MADPH-96-963, IUHET-346, UCD-97-01 | hep-ph hep-ex | null | Precise determinations of the masses of the $W$ boson and of the top quark
could stringently test the radiative structure of the Standard Model (SM) or
provide evidence for new physics. We analyze the excellent prospects at a muon
collider for measuring $M_W$ and $m_t$ in the $W^+W^-$ and $t\bar t$ threshold
regions.... | [
{
"created": "Fri, 14 Feb 1997 05:31:39 GMT",
"version": "v1"
}
] | 2009-09-15 | [
[
"Barger",
"V.",
""
],
[
"Berger",
"M. S.",
""
],
[
"Gunion",
"J. F.",
""
],
[
"Han",
"T.",
""
]
] | Precise determinations of the masses of the $W$ boson and of the top quark could stringently test the radiative structure of the Standard Model (SM) or provide evidence for new physics. We analyze the excellent prospects at a muon collider for measuring $M_W$ and $m_t$ in the $W^+W^-$ and $t\bar t$ threshold regions. W... |
hep-ph/9703452 | Manuel Drees | Abdelhak Djouadi (LPM, Montpellier, France) and Manuel Drees (APCTP,
Seoul, Korea) | Higgs Boson Decays into Light Gravitinos | 11 pages, 4 embedded figures; LaTeX with equation.sty and epsf.sty | Phys.Lett. B407 (1997) 243-249 | 10.1016/S0370-2693(97)00670-9 | APCTP 97-05, PM 97-05 | hep-ph | null | We study decays of the neutral and charged Higgs bosons of the minimal
supersymmetric standard model into a very light gravitino and a neutralino or
chargino. Present experimental constraints already imply that the lighter
scalar Higgs boson can only have a very small branching ratio into this mode.
However, if the g... | [
{
"created": "Sat, 29 Mar 1997 05:58:35 GMT",
"version": "v1"
}
] | 2009-10-30 | [
[
"Djouadi",
"Abdelhak",
"",
"LPM, Montpellier, France"
],
[
"Drees",
"Manuel",
"",
"APCTP,\n Seoul, Korea"
]
] | We study decays of the neutral and charged Higgs bosons of the minimal supersymmetric standard model into a very light gravitino and a neutralino or chargino. Present experimental constraints already imply that the lighter scalar Higgs boson can only have a very small branching ratio into this mode. However, if the gra... |
1901.00151 | Dmitry V. Naumov | Dmitry V.Naumov | Sterile Neutrino. A short introduction | contribution to VLVnT2018 Conference | null | 10.1051/epjconf/201920704004 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This is a pedagogical introduction to the main concepts of the sterile
neutrino - a hypothetical particle, coined to resolve some anomalies in
neutrino data and retain consistency with observed widths of the $W$ and $Z$
bosons. We briefly review existing anomalies and the oscillation parameters
that best describe the... | [
{
"created": "Tue, 1 Jan 2019 13:10:21 GMT",
"version": "v1"
}
] | 2019-05-22 | [
[
"Naumov",
"Dmitry V.",
""
]
] | This is a pedagogical introduction to the main concepts of the sterile neutrino - a hypothetical particle, coined to resolve some anomalies in neutrino data and retain consistency with observed widths of the $W$ and $Z$ bosons. We briefly review existing anomalies and the oscillation parameters that best describe these... |
hep-ph/9409254 | Jean-Bruno Erismann | J. Soffer | Positivity Constraints for Spin-Dependent Parton Distributions | 8 pages,CPT-94/P.3059,LaTex,3 fig available on cpt.univ-mrs.fr
directory pub/preprints/94/fundamental-interactions/94-P.3059 | Phys.Rev.Lett.74:1292-1294,1995 | 10.1103/PhysRevLett.74.1292 | null | hep-ph | null | We derive new positivity constraints on the spin-dependent structure
functions of the nucleon. These model independent results reduce conside\-rably
their domain of allowed values, in particular for the chiral-odd parton
distribution $h_1 (x)$.
| [
{
"created": "Thu, 8 Sep 1994 08:44:47 GMT",
"version": "v1"
},
{
"created": "Wed, 19 Oct 1994 08:14:45 GMT",
"version": "v2"
}
] | 2010-11-01 | [
[
"Soffer",
"J.",
""
]
] | We derive new positivity constraints on the spin-dependent structure functions of the nucleon. These model independent results reduce conside\-rably their domain of allowed values, in particular for the chiral-odd parton distribution $h_1 (x)$. |
2406.16504 | Luis Roca | E. Oset, L. Roca, M. Whitehead | Production of pentaquarks with hidden charm and double strangeness in
$\Xi_b$ and $\Omega_b$ decays | 9 pages, 7 figures | null | null | null | hep-ph | http://creativecommons.org/licenses/by/4.0/ | Recently, several pentaquark states $P_{css}$, with global flavor $\bar c c s
s n$, have been predicted within a theoretical framework based on unitary
coupled channels. We study theoretically the feasibility to observe the
$P_{css}$ with $I(J^P)=\frac{1}{2}(\frac{1}{2}^-)$ in the decays $\Xi_b^0\to
\eta \eta_c \Xi^0... | [
{
"created": "Mon, 24 Jun 2024 10:17:04 GMT",
"version": "v1"
}
] | 2024-06-25 | [
[
"Oset",
"E.",
""
],
[
"Roca",
"L.",
""
],
[
"Whitehead",
"M.",
""
]
] | Recently, several pentaquark states $P_{css}$, with global flavor $\bar c c s s n$, have been predicted within a theoretical framework based on unitary coupled channels. We study theoretically the feasibility to observe the $P_{css}$ with $I(J^P)=\frac{1}{2}(\frac{1}{2}^-)$ in the decays $\Xi_b^0\to \eta \eta_c \Xi^0$ ... |
2211.07071 | Cheng Zhang | Cheng Zhang, Qian-Shun Dai and Ding Yu Shao | Azimuthal decorrelation for photon induced dijet production in
ultra-peripheral collisions of heavy ions | 20 pages, 5 figures | J. High Energ. Phys. 2023, 2 (2023) | 10.1007/JHEP02(2023)002 | null | hep-ph hep-ex nucl-th | http://creativecommons.org/licenses/by/4.0/ | We study the azimuthal angular decorrelation of the dijet production via
photon fusion in ultra-peripheral heavy ion collisions. The impact parameter
dependent cross section of quark-antiquark pairs production is derived using
the equivalent photon approximation, and the contribution from final-state QCD
radiations t... | [
{
"created": "Mon, 14 Nov 2022 02:29:17 GMT",
"version": "v1"
},
{
"created": "Thu, 2 Feb 2023 04:43:53 GMT",
"version": "v2"
}
] | 2023-02-03 | [
[
"Zhang",
"Cheng",
""
],
[
"Dai",
"Qian-Shun",
""
],
[
"Shao",
"Ding Yu",
""
]
] | We study the azimuthal angular decorrelation of the dijet production via photon fusion in ultra-peripheral heavy ion collisions. The impact parameter dependent cross section of quark-antiquark pairs production is derived using the equivalent photon approximation, and the contribution from final-state QCD radiations to ... |
hep-ph/0408198 | Pankaj Jain | Sudeep Das, Pankaj Jain, John P. Ralston and Rajib Saha | Probing Light Pseudoscalars with Light: Propagation, Resonance and
Spontaneous Polarization | 41 pages, 7 figures, revised version | JCAP 0506 (2005) 002 | 10.1088/1475-7516/2005/06/002 | null | hep-ph astro-ph | null | Radiation propagating over cosmological distances can probe light weakly
interacting pseudoscalar (or scalar) particles. The existence of a spin-0 field
changes the dynamical symmetries of electrodynamics. It predicts spontaneous
generation of polarization of electromagnetic waves due to mode mixing in the
presence o... | [
{
"created": "Wed, 18 Aug 2004 04:07:15 GMT",
"version": "v1"
},
{
"created": "Wed, 13 Oct 2004 06:43:36 GMT",
"version": "v2"
},
{
"created": "Fri, 27 May 2005 04:49:23 GMT",
"version": "v3"
},
{
"created": "Thu, 9 Aug 2007 09:40:54 GMT",
"version": "v4"
}
] | 2009-11-10 | [
[
"Das",
"Sudeep",
""
],
[
"Jain",
"Pankaj",
""
],
[
"Ralston",
"John P.",
""
],
[
"Saha",
"Rajib",
""
]
] | Radiation propagating over cosmological distances can probe light weakly interacting pseudoscalar (or scalar) particles. The existence of a spin-0 field changes the dynamical symmetries of electrodynamics. It predicts spontaneous generation of polarization of electromagnetic waves due to mode mixing in the presence of ... |
1805.01904 | Martin Bauer | Martin Bauer, Sascha Diefenbacher, Tilman Plehn, Michael Russell and
Daniel A. Camargo | Dark Matter in Anomaly-Free Gauge Extensions | 25 pages plus appendix, 14 figures | SciPost Phys. 5, 036 (2018) | 10.21468/SciPostPhys.5.4.036 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A consistent model for vector mediators to dark matter needs to be
anomaly-free and include a scalar mode from mass generation. For the leading
U(1) extensions we review the structure and constraints, including kinetic
mixing at loop level. The thermal relic density suggests that the vector and
scalar masses are simi... | [
{
"created": "Fri, 4 May 2018 18:02:03 GMT",
"version": "v1"
},
{
"created": "Fri, 25 May 2018 13:43:12 GMT",
"version": "v2"
},
{
"created": "Mon, 20 Aug 2018 10:54:40 GMT",
"version": "v3"
}
] | 2018-10-24 | [
[
"Bauer",
"Martin",
""
],
[
"Diefenbacher",
"Sascha",
""
],
[
"Plehn",
"Tilman",
""
],
[
"Russell",
"Michael",
""
],
[
"Camargo",
"Daniel A.",
""
]
] | A consistent model for vector mediators to dark matter needs to be anomaly-free and include a scalar mode from mass generation. For the leading U(1) extensions we review the structure and constraints, including kinetic mixing at loop level. The thermal relic density suggests that the vector and scalar masses are simila... |
hep-ph/9504279 | Fabian Franke | F. Franke and H. Fraas | Mass Bounds for the Neutral Higgs Bosons in the Next-To-Minimal
Supersymmetric Standard Model | 9 pages, LATEX, 6 figures (not included). The complete paper
(including figures) can be obtained via anonymous ftp at
ftp://ftp.physik.uni-wuerzburg.de/pub/preprint/WUE-ITP-95-003.ps.gz | Phys.Lett. B353 (1995) 234-242 | 10.1016/0370-2693(95)00588-C | WUE-ITP-95-003 | hep-ph | null | In the Next--To--Minimal Supersymmetric Standard Model (NMSSM), the Higgs and
neutralino/chargino sectors are strongly correlated by four common parameters
at tree level. Therefore we analyze the experimental data from both the search
for Higgs bosons as well as for neutralinos and charginos at LEP 100 in order
to co... | [
{
"created": "Tue, 11 Apr 1995 12:25:09 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Franke",
"F.",
""
],
[
"Fraas",
"H.",
""
]
] | In the Next--To--Minimal Supersymmetric Standard Model (NMSSM), the Higgs and neutralino/chargino sectors are strongly correlated by four common parameters at tree level. Therefore we analyze the experimental data from both the search for Higgs bosons as well as for neutralinos and charginos at LEP 100 in order to cons... |
1407.5956 | A. H. Rezaeian | Amir H. Rezaeian | b-CGC versus IP-Sat and high precision combined HERA data | 7 pages, 10 figures. To appear in proceedings of DIS 2014, XXII.
International Workshop on Deep-Inelastic Scattering and Related Subjects, 28
April - 2 May 2014, Warsaw, Poland | null | null | null | hep-ph nucl-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Impact-Parameter dependent Color Glass Condensate (b-CGC) and Saturation
(IP-Sat) dipole models incorporate key features of small-x physics properties
and match smoothly to the perturbative QCD regime at large $Q^2$ for a given
$x$. Although both models include saturation effects and depend on
impact-parameter, t... | [
{
"created": "Tue, 22 Jul 2014 17:43:30 GMT",
"version": "v1"
},
{
"created": "Wed, 23 Jul 2014 18:51:25 GMT",
"version": "v2"
}
] | 2014-07-24 | [
[
"Rezaeian",
"Amir H.",
""
]
] | The Impact-Parameter dependent Color Glass Condensate (b-CGC) and Saturation (IP-Sat) dipole models incorporate key features of small-x physics properties and match smoothly to the perturbative QCD regime at large $Q^2$ for a given $x$. Although both models include saturation effects and depend on impact-parameter, the... |
1003.1798 | Douglas Gingrich Mr. | Douglas M. Gingrich | Noncommutative geometry inspired black holes in higher dimensions at the
LHC | 21 pages, 7 figures | JHEP 1005:022,2010 | 10.1007/JHEP05(2010)022 | null | hep-ph gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | When embedding models of noncommutative geometry inspired black holes into
the peridium of large extra dimensions, it is natural to relate the
noncommutativity scale to the higher-dimensional Planck scale. If the Planck
scale is of the order of a TeV, noncommutative geometry inspired black holes
could become accessib... | [
{
"created": "Tue, 9 Mar 2010 06:53:20 GMT",
"version": "v1"
}
] | 2014-11-20 | [
[
"Gingrich",
"Douglas M.",
""
]
] | When embedding models of noncommutative geometry inspired black holes into the peridium of large extra dimensions, it is natural to relate the noncommutativity scale to the higher-dimensional Planck scale. If the Planck scale is of the order of a TeV, noncommutative geometry inspired black holes could become accessible... |
hep-ph/0504175 | Philipp Hagler | M. Diehl, Ph. Hagler | Spin densities in the transverse plane and generalized transversity
distributions | 23 pages, 6 eps-figures | Eur.Phys.J.C44:87-101,2005 | 10.1140/epjc/s2005-02342-6 | null | hep-ph hep-lat | null | We show how generalized quark distributions in the nucleon describe the
density of polarized quarks in the impact parameter plane, both for
longitudinal and transverse polarization of the quark and the nucleon. This
density representation entails positivity bounds including chiral-odd
distributions, which tighten the... | [
{
"created": "Wed, 20 Apr 2005 13:08:02 GMT",
"version": "v1"
}
] | 2009-01-07 | [
[
"Diehl",
"M.",
""
],
[
"Hagler",
"Ph.",
""
]
] | We show how generalized quark distributions in the nucleon describe the density of polarized quarks in the impact parameter plane, both for longitudinal and transverse polarization of the quark and the nucleon. This density representation entails positivity bounds including chiral-odd distributions, which tighten the k... |
hep-ph/0206012 | Alexei Prokudin | V. A. Petrov, E. Predazzi, A. Prokudin | Coulomb Interference in High-Energy pp and pbar p Scattering | 20 pages, 16 figures | Eur.Phys.J.C28:525-533,2003 | 10.1140/epjc/s2003-01191-7 | null | hep-ph | null | An analysis of the Coulombic amplitude and its interference with the nuclear
amplitude which is driven by the three-component Pomeron is presented. It is
shown that different approaches towards the Coulomb phase evaluation give
approximately uniform result at all energies and the difference is negligible
at RHIC and ... | [
{
"created": "Mon, 3 Jun 2002 14:04:46 GMT",
"version": "v1"
}
] | 2011-09-13 | [
[
"Petrov",
"V. A.",
""
],
[
"Predazzi",
"E.",
""
],
[
"Prokudin",
"A.",
""
]
] | An analysis of the Coulombic amplitude and its interference with the nuclear amplitude which is driven by the three-component Pomeron is presented. It is shown that different approaches towards the Coulomb phase evaluation give approximately uniform result at all energies and the difference is negligible at RHIC and LH... |
1512.04356 | Giuliano Panico | Oleksii Matsedonskyi, Giuliano Panico and Andrea Wulzer | Top Partners Searches and Composite Higgs Models | 32 pages, 15 figures | null | 10.1007/JHEP04(2016)003 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Colored fermionic partners of the top quark are well-known signatures of the
Composite Higgs scenario and for this reason they have been and will be subject
of an intensive experimental study at the LHC. Performing an assessment of the
theoretical implications of this experimental effort is the goal of the present
pa... | [
{
"created": "Mon, 14 Dec 2015 15:08:11 GMT",
"version": "v1"
}
] | 2016-05-04 | [
[
"Matsedonskyi",
"Oleksii",
""
],
[
"Panico",
"Giuliano",
""
],
[
"Wulzer",
"Andrea",
""
]
] | Colored fermionic partners of the top quark are well-known signatures of the Composite Higgs scenario and for this reason they have been and will be subject of an intensive experimental study at the LHC. Performing an assessment of the theoretical implications of this experimental effort is the goal of the present pape... |
hep-ph/9511445 | Brian Wright | Paul H. Frampton (1), Bettina Keszthelyi (1), Brian D. Wright (1) and
Thomas W. Kephart (2) ((1) Institute of Field Physics, University of North
Carolina, Chapel Hill, (2) Department of Physics and Astronomy, Vanderbilt
University ) | Constraining $\alpha_s(M_Z)$ from the Hidden Sector | 12 pages (23k), in ReVTeX plus 3 postscript figures (27k), Submitted
to Physical Review Letters | null | null | IFP-714-UNC, VAND-TH-95-5 | hep-ph | null | By including the effects of superstring thresholds, we reconsider minimal
string unification together with the requirement of producing a
supersymmetry-breaking gluino condensate in the hidden sector. This gives, for
examples of phenomenologically-viable $Z_8'$ and other related orbifolds, the
constraint that $0.1215... | [
{
"created": "Wed, 29 Nov 1995 01:36:40 GMT",
"version": "v1"
},
{
"created": "Wed, 29 Nov 1995 06:43:39 GMT",
"version": "v2"
}
] | 2008-02-03 | [
[
"Frampton",
"Paul H.",
""
],
[
"Keszthelyi",
"Bettina",
""
],
[
"Wright",
"Brian D.",
""
],
[
"Kephart",
"Thomas W.",
""
]
] | By including the effects of superstring thresholds, we reconsider minimal string unification together with the requirement of producing a supersymmetry-breaking gluino condensate in the hidden sector. This gives, for examples of phenomenologically-viable $Z_8'$ and other related orbifolds, the constraint that $0.1215 \... |
1205.6569 | Per Osland | L. Basso, A. Lipniacka, F. Mahmoudi, S. Moretti, P. Osland, G. M.
Pruna, M. Purmohammadi | Probing the charged Higgs boson at the LHC in the CP-violating type-II
2HDM | 37 pages, 16 figures; v2 updated treatment of LHC constraints | JHEP 1211 (2012) 011 | 10.1007/JHEP11(2012)011 | CERN-PH-TH/2012-068; FR-PHENO-2012-005; SHEP-12-06 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a phenomenological study of a CP-violating two-Higgs-doublet Model
with type-II Yukawa couplings at the Large Hadron Collider (LHC). In the light
of recent LHC data, we focus on the parameter space that survives the current
and past experimental constraints as well as theoretical bounds on the model.
Once ... | [
{
"created": "Wed, 30 May 2012 07:59:32 GMT",
"version": "v1"
},
{
"created": "Mon, 27 Aug 2012 10:05:19 GMT",
"version": "v2"
}
] | 2012-11-13 | [
[
"Basso",
"L.",
""
],
[
"Lipniacka",
"A.",
""
],
[
"Mahmoudi",
"F.",
""
],
[
"Moretti",
"S.",
""
],
[
"Osland",
"P.",
""
],
[
"Pruna",
"G. M.",
""
],
[
"Purmohammadi",
"M.",
""
]
] | We present a phenomenological study of a CP-violating two-Higgs-doublet Model with type-II Yukawa couplings at the Large Hadron Collider (LHC). In the light of recent LHC data, we focus on the parameter space that survives the current and past experimental constraints as well as theoretical bounds on the model. Once th... |
2402.04184 | Wei-Chih Huang | Bhaskar Dutta, Wei-Chih Huang, Doojin Kim, Jayden L. Newstead,
Jong-Chul Park, and Iman Shaukat Ali | Exciting Prospects for Dark Matter at Large-Volume Neutrino Detectors | 7 pages, 4 figures | null | null | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose a new approach to search for light dark matter (DM) in the range
of keV-GeV via inelastic nucleus scattering at large-volume neutrino detectors
such as Borexino, DUNE, JUNO, and Hyper-K. The approach uses inelastic nuclear
scattering of cosmic-ray boosted DM, enabling a low-background search for DM in
thes... | [
{
"created": "Tue, 6 Feb 2024 17:44:09 GMT",
"version": "v1"
}
] | 2024-02-07 | [
[
"Dutta",
"Bhaskar",
""
],
[
"Huang",
"Wei-Chih",
""
],
[
"Kim",
"Doojin",
""
],
[
"Newstead",
"Jayden L.",
""
],
[
"Park",
"Jong-Chul",
""
],
[
"Ali",
"Iman Shaukat",
""
]
] | We propose a new approach to search for light dark matter (DM) in the range of keV-GeV via inelastic nucleus scattering at large-volume neutrino detectors such as Borexino, DUNE, JUNO, and Hyper-K. The approach uses inelastic nuclear scattering of cosmic-ray boosted DM, enabling a low-background search for DM in these ... |
0712.0145 | Sukanta Dutta | Sukanta Dutta (1) and Ashok Goyal (2) ((1) SGTB Khalsa College,
University of Delhi India, (2)Department of Physics and Astrophysics,
University of Delhi, India.) | Constraints on Astro-unparticle Physics from SN 1987A | 12 pages, 2 postscript figures | JCAP0803:027,2008 | 10.1088/1475-7516/2008/03/027 | null | hep-ph | null | SN 1987A observations have been used to place constraints on the interactions
between standard model particles and unparticles. In this study we calculate
the energy loss from the supernovae core through scalar, pseudo scalar, vector,
pseudo vector unparticle emission from nuclear bremsstrahlung for degenerate
nuclea... | [
{
"created": "Mon, 3 Dec 2007 19:01:25 GMT",
"version": "v1"
},
{
"created": "Tue, 15 Jan 2008 16:45:41 GMT",
"version": "v2"
},
{
"created": "Wed, 16 Jan 2008 11:28:11 GMT",
"version": "v3"
}
] | 2008-11-26 | [
[
"Dutta",
"Sukanta",
""
],
[
"Goyal",
"Ashok",
""
]
] | SN 1987A observations have been used to place constraints on the interactions between standard model particles and unparticles. In this study we calculate the energy loss from the supernovae core through scalar, pseudo scalar, vector, pseudo vector unparticle emission from nuclear bremsstrahlung for degenerate nuclear ... |
0808.0650 | Andre Rubbia | T. Kajita, S.B. Kim, A.Rubbia | Summary of the 3rd International Workshop on a Far Detector in Korea for
the J-PARC Beam | 10 pages, 5 figures, to appear in Proc. 3rd International Workshop on
a Far Detector in Korea for the J-PARC Neutrino Beam, Univ. of Tokyo, Tokyo,
Japan, Sep.30 - Oct. 1, 2007 | null | null | null | hep-ph hep-ex | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The 3rd International Workshop on a Far Detector in Korea for the J-PARC
Neutrino Beam was held at the Hongo Campus of Tokyo University, Tokyo, Japan on
Sep. 30th and October 1, 2007. Forty seven physicists from Japan and Korea, as
well as Europe and USA, participated in the workshop and discussed the physics
opportu... | [
{
"created": "Tue, 5 Aug 2008 13:43:29 GMT",
"version": "v1"
}
] | 2008-08-06 | [
[
"Kajita",
"T.",
""
],
[
"Kim",
"S. B.",
""
],
[
"Rubbia",
"A.",
""
]
] | The 3rd International Workshop on a Far Detector in Korea for the J-PARC Neutrino Beam was held at the Hongo Campus of Tokyo University, Tokyo, Japan on Sep. 30th and October 1, 2007. Forty seven physicists from Japan and Korea, as well as Europe and USA, participated in the workshop and discussed the physics opportuni... |
hep-ph/9907522 | Apostolos Pilaftsis | Ara Ioannisian and Apostolos Pilaftsis | Cumulative Non-Decoupling Effects of Kaluza-Klein Neutrinos in
Electroweak Processes | 31 pages, LaTeX, to appear in Physical Review D | Phys.Rev. D62 (2000) 066001 | 10.1103/PhysRevD.62.066001 | CERN-TH/99-230, MPI-Th/99-30, FERMILAB-PUB-99/215-T, THES-TP/99-09 | hep-ph astro-ph hep-ex hep-th | null | In Kaluza-Klein theories of low-scale quantum gravity, gravitons and
isosinglet neutrinos may propagate in a higher-dimensional space with large
compact dimensions, whereas all particles of the Standard Model are confined on
a (1+3)-dimensional subspace. After compactification of the extra dimensions,
the resulting Y... | [
{
"created": "Tue, 27 Jul 1999 23:39:49 GMT",
"version": "v1"
},
{
"created": "Thu, 5 Aug 1999 09:35:31 GMT",
"version": "v2"
},
{
"created": "Wed, 19 Apr 2000 22:43:44 GMT",
"version": "v3"
}
] | 2009-10-31 | [
[
"Ioannisian",
"Ara",
""
],
[
"Pilaftsis",
"Apostolos",
""
]
] | In Kaluza-Klein theories of low-scale quantum gravity, gravitons and isosinglet neutrinos may propagate in a higher-dimensional space with large compact dimensions, whereas all particles of the Standard Model are confined on a (1+3)-dimensional subspace. After compactification of the extra dimensions, the resulting Yuk... |
hep-ph/9805288 | Ivone Albuquerque | Ivone F.M.Albuquerque, Glennys R.Farrar and Edward W.Kolb | Exotic massive hadrons and ultra-high energy cosmic rays | 27 pages, 15 figures - fig5b was replaced | Phys.Rev. D59 (1999) 015021 | 10.1103/PhysRevD.59.015021 | FNAL-PUB-98/131-A; EFI-98-15; RU-98-19 | hep-ph astro-ph | null | We investigate the proposal that primary cosmic rays of energy above the
Greisen-Zatsepin-Kuzmin cutoff are exotic massive strongly interacting
particles (uhecrons). We study the properties of air showers produced by
uhecrons and find that masses in excess of about 50 GeV are inconsistent with
the highest energy even... | [
{
"created": "Mon, 11 May 1998 21:59:28 GMT",
"version": "v1"
},
{
"created": "Mon, 24 Aug 1998 19:48:47 GMT",
"version": "v2"
},
{
"created": "Fri, 2 Oct 1998 16:34:47 GMT",
"version": "v3"
}
] | 2009-10-31 | [
[
"Albuquerque",
"Ivone F. M.",
""
],
[
"Farrar",
"Glennys R.",
""
],
[
"Kolb",
"Edward W.",
""
]
] | We investigate the proposal that primary cosmic rays of energy above the Greisen-Zatsepin-Kuzmin cutoff are exotic massive strongly interacting particles (uhecrons). We study the properties of air showers produced by uhecrons and find that masses in excess of about 50 GeV are inconsistent with the highest energy event ... |
hep-ph/0309278 | Aneesh Manohar | Christian W. Bauer, Christopher Lee, Aneesh V. Manohar, Mark B. Wise | Enhanced Nonperturbative Effects in Z Decays to Hadrons | 17 pages. Paper reorganized, and more discussion and results included | Phys.Rev. D70 (2004) 034014 | 10.1103/PhysRevD.70.034014 | null | hep-ph | null | We use soft collinear effective field theory (SCET) to study nonperturbative
strong interaction effects in Z decays to hadronic final states that are
enhanced in corners of phase space. These occur, for example, in the jet energy
distribution for two jet events near E_J=M_Z/2, the thrust distribution near
unity and t... | [
{
"created": "Thu, 25 Sep 2003 19:07:12 GMT",
"version": "v1"
},
{
"created": "Wed, 11 Feb 2004 18:36:34 GMT",
"version": "v2"
}
] | 2009-11-10 | [
[
"Bauer",
"Christian W.",
""
],
[
"Lee",
"Christopher",
""
],
[
"Manohar",
"Aneesh V.",
""
],
[
"Wise",
"Mark B.",
""
]
] | We use soft collinear effective field theory (SCET) to study nonperturbative strong interaction effects in Z decays to hadronic final states that are enhanced in corners of phase space. These occur, for example, in the jet energy distribution for two jet events near E_J=M_Z/2, the thrust distribution near unity and the... |
0907.0051 | HongWei Ke | Hong-Wei Ke, Zuo Li, Jing-Ling Chen, Yi-Bing Ding and Xue-Qian Li | Symmetry of Dirac Equation and Corresponding Phenomenology | 15pages, 3 figures, accepted by International Journal of Modern
Physics A | Int.J.Mod.Phys.A25:1123-1134,2010 | 10.1142/S0217751X1004783X | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It has been suggested that the high symmetries in the Schr\"odinger equation
with the Coulomb or harmonic oscillator potentials may remain in the
corresponding relativistic Dirac equation. If the principle is correct, in the
Dirac equation the potential should have a form as ${(1+\beta)\over 2}V(r)$
where $V(r)$ is $... | [
{
"created": "Wed, 1 Jul 2009 01:52:48 GMT",
"version": "v1"
},
{
"created": "Tue, 27 Oct 2009 05:57:09 GMT",
"version": "v2"
}
] | 2015-05-13 | [
[
"Ke",
"Hong-Wei",
""
],
[
"Li",
"Zuo",
""
],
[
"Chen",
"Jing-Ling",
""
],
[
"Ding",
"Yi-Bing",
""
],
[
"Li",
"Xue-Qian",
""
]
] | It has been suggested that the high symmetries in the Schr\"odinger equation with the Coulomb or harmonic oscillator potentials may remain in the corresponding relativistic Dirac equation. If the principle is correct, in the Dirac equation the potential should have a form as ${(1+\beta)\over 2}V(r)$ where $V(r)$ is ${-... |
1311.7425 | Matthias Steinhauser | Jonathan Grigo, Jens Hoff, Kirill Melnikov, Matthias Steinhauser | Higgs boson pair production at the LHC: top-quark mass effects at NLO | 8 pages, Presented at the 11th International Symposium on Radiative
Corrections, RADCOR 2013, 22.-27. September 2013, Lumley Castle, Durham, UK | null | null | TTP13-043, SFB/CPP-13-105 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Higgs boson pair production is considered at next-to-leading order with
special emphasis on the effect of a finite top quark mass. It is shown that,
unlike for single-Higgs boson production, power-suppressed corrections are
numerically important.
| [
{
"created": "Thu, 28 Nov 2013 21:04:44 GMT",
"version": "v1"
}
] | 2013-12-02 | [
[
"Grigo",
"Jonathan",
""
],
[
"Hoff",
"Jens",
""
],
[
"Melnikov",
"Kirill",
""
],
[
"Steinhauser",
"Matthias",
""
]
] | Higgs boson pair production is considered at next-to-leading order with special emphasis on the effect of a finite top quark mass. It is shown that, unlike for single-Higgs boson production, power-suppressed corrections are numerically important. |
2110.13270 | David London | David London and Joaquim Matias | $B$ Flavour Anomalies: 2021 Theoretical Status Report | 48 pages, 1 figure. To be published in the Annual Review of Nuclear
and Particle Science. Changes: minor modifications of the text, references
updated and added | Annual Review of Nuclear and Particle Science, Vol. 72, No. 1, pp.
37-68, 2022 | 10.1146/annurev-nucl-102020-090209 | UdeM-GPP-TH-21-289 | hep-ph | http://creativecommons.org/licenses/by/4.0/ | At the present time, there are discrepancies with the predictions of the SM
in several observables involving $b \to s \ell^+ \ell^-$ and $b \to c \ell^-
{\bar\nu}_\ell$ decays. These are the $B$ flavour anomalies. In this review, we
summarize the data as of Moriond 2021 and present theoretical new-physics
explanation... | [
{
"created": "Mon, 25 Oct 2021 21:10:25 GMT",
"version": "v1"
},
{
"created": "Tue, 16 Nov 2021 20:03:58 GMT",
"version": "v2"
}
] | 2022-10-04 | [
[
"London",
"David",
""
],
[
"Matias",
"Joaquim",
""
]
] | At the present time, there are discrepancies with the predictions of the SM in several observables involving $b \to s \ell^+ \ell^-$ and $b \to c \ell^- {\bar\nu}_\ell$ decays. These are the $B$ flavour anomalies. In this review, we summarize the data as of Moriond 2021 and present theoretical new-physics explanations ... |
1602.01330 | Nobuhito Maru | Nobuhito Maru | Nambu-Jona-Lasinio Theory and Dynamical Breaking of Supersymmetry | 33 pages, 3 figures, a review article prepared for Special Section
"Nambu, A Foreteller of Modern Physics (1)" for Progress of Theoretical and
Experimental Physics (PTEP). arXiv admin note: substantial text overlap with
arXiv:1301.7548 | null | 10.1093/ptep/ptw018 | OCU-PHYS 441 | hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A recently proposed new mechanism of D-term triggered dynamical supersymmetry
breaking is reviewed. Supersymmetry is dynamically broken by nonvanishing
D-term vacuum expectation value, which is realized as a nontrivial solution of
the gap equation in the self-consistent approximation as in the case of
Nambu-Jona-Lasi... | [
{
"created": "Wed, 3 Feb 2016 15:05:58 GMT",
"version": "v1"
}
] | 2016-05-25 | [
[
"Maru",
"Nobuhito",
""
]
] | A recently proposed new mechanism of D-term triggered dynamical supersymmetry breaking is reviewed. Supersymmetry is dynamically broken by nonvanishing D-term vacuum expectation value, which is realized as a nontrivial solution of the gap equation in the self-consistent approximation as in the case of Nambu-Jona-Lasini... |
1204.0863 | Bo-Qiang Ma | Tao Peng, Bo-Qiang Ma | Heavy quarkonium 2S states in light-front quark model | 5 latex pages, final version for journal publication | Eur.Phys.J. A48 (2012) 66 | 10.1140/epja/i2012-12066-9 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the charmonium 2S states $\psi'$ and $\eta_c'$, and the bottomonium
2S states $\Upsilon'$ and $\eta_b'$, using the light-front quark model and the
2S state wave function of harmonic oscillator as the approximation of the 2S
quarkonium wave function. The decay constants, transition form factors and
masses of ... | [
{
"created": "Wed, 4 Apr 2012 05:05:58 GMT",
"version": "v1"
},
{
"created": "Fri, 11 May 2012 13:31:18 GMT",
"version": "v2"
}
] | 2012-05-24 | [
[
"Peng",
"Tao",
""
],
[
"Ma",
"Bo-Qiang",
""
]
] | We study the charmonium 2S states $\psi'$ and $\eta_c'$, and the bottomonium 2S states $\Upsilon'$ and $\eta_b'$, using the light-front quark model and the 2S state wave function of harmonic oscillator as the approximation of the 2S quarkonium wave function. The decay constants, transition form factors and masses of th... |
1510.05462 | Maurizio Lusignoli | A. De R\'ujula and M. Lusignoli | The calorimetric spectrum of the electron-capture decay of $^{163}$Ho. A
preliminary analysis of the preliminary data | 6 pages, 5 figures. Section IV and Fig.3 added. Minor text
modifications | null | null | null | hep-ph nucl-th physics.atom-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is in principle possible to measure directly the electron neutrino mass
(or masses and mixing angles) in weak electron-capture decays. The optimal
nuclide in this respect is $^{163}$Ho. The favoured experimental technique,
currently pursued in various experiments (ECHo, HOLMES and NuMECS) is
"calorimetric". The ca... | [
{
"created": "Mon, 19 Oct 2015 13:21:47 GMT",
"version": "v1"
},
{
"created": "Sun, 8 Nov 2015 16:36:17 GMT",
"version": "v2"
}
] | 2015-11-10 | [
[
"De Rújula",
"A.",
""
],
[
"Lusignoli",
"M.",
""
]
] | It is in principle possible to measure directly the electron neutrino mass (or masses and mixing angles) in weak electron-capture decays. The optimal nuclide in this respect is $^{163}$Ho. The favoured experimental technique, currently pursued in various experiments (ECHo, HOLMES and NuMECS) is "calorimetric". The calo... |
0712.4263 | Juan Garcia-Bellido | Andres Diaz-Gil, Juan Garcia-Bellido, Margarita Garcia Perez and
Antonio Gonzalez-Arroyo | Magnetic field production during preheating at the electroweak scale | 4 pages, 6 figures, uses revtex4 | Phys.Rev.Lett.100:241301,2008 | 10.1103/PhysRevLett.100.241301 | IFT-UAM/CSIC-07-65 | hep-ph astro-ph hep-lat | null | We study the generation of magnetic fields during preheating within an
scenario of hybrid inflation at the electroweak (EW) scale. We find that the
non-perturbative and strongly out-of-equilibrium process of magnetic field
production occurs along the lines predicted by Vachaspati many years ago. The
system starts in ... | [
{
"created": "Thu, 27 Dec 2007 18:22:33 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Diaz-Gil",
"Andres",
""
],
[
"Garcia-Bellido",
"Juan",
""
],
[
"Perez",
"Margarita Garcia",
""
],
[
"Gonzalez-Arroyo",
"Antonio",
""
]
] | We study the generation of magnetic fields during preheating within an scenario of hybrid inflation at the electroweak (EW) scale. We find that the non-perturbative and strongly out-of-equilibrium process of magnetic field production occurs along the lines predicted by Vachaspati many years ago. The system starts in th... |
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