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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
hep-ph/9412254 | PostDoc Its | Darwin Chang, Xiao-Gang He and Sandip Pakvasa | CP Violation In Hyperon Decays Due To Left-Right Mixing | 11 pages, Revtex | Phys.Rev.Lett.74:3927-3930,1995 | 10.1103/PhysRevLett.74.3927 | OITS-564, UH-511-810-94, NHCU-HEP-94-30 | hep-ph | null | We consider CP violation due to left-right mixing in a class of Left-Right
symmetric models and show that it leads to observable effects in hyperon
decays. For S-wave, the contribution to CP violating asymmetry A of the
polarization in hyperon and anti-hyperon decays is proportional to
$\epsilon'/\epsilon$. While the... | [
{
"created": "Wed, 7 Dec 1994 18:59:33 GMT",
"version": "v1"
}
] | 2010-11-01 | [
[
"Chang",
"Darwin",
""
],
[
"He",
"Xiao-Gang",
""
],
[
"Pakvasa",
"Sandip",
""
]
] | We consider CP violation due to left-right mixing in a class of Left-Right symmetric models and show that it leads to observable effects in hyperon decays. For S-wave, the contribution to CP violating asymmetry A of the polarization in hyperon and anti-hyperon decays is proportional to $\epsilon'/\epsilon$. While the t... |
2203.04561 | Hai-Yang Cheng | Hai-Yang Cheng, Cheng-Wei Chiang, Zhi-Qing Zhang | Two- and three-body hadronic decays of charmed mesons involving a tensor
meson | 18 pages | Phys. Rev. D 105, 093006 (2022) | 10.1103/PhysRevD.105.093006 | null | hep-ph hep-ex | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the quasi-two-body $D\to TP$ decays and the three-body $D$ decays
proceeding through intermediate tensor resonances, where $T$ and $P$ denote
tensor and pseudoscalar mesons, respectively. We employ $D\to T$ transition
form factors based upon light-cone sum rules and the covariant light-front
quark model to e... | [
{
"created": "Wed, 9 Mar 2022 07:47:38 GMT",
"version": "v1"
}
] | 2022-06-01 | [
[
"Cheng",
"Hai-Yang",
""
],
[
"Chiang",
"Cheng-Wei",
""
],
[
"Zhang",
"Zhi-Qing",
""
]
] | We study the quasi-two-body $D\to TP$ decays and the three-body $D$ decays proceeding through intermediate tensor resonances, where $T$ and $P$ denote tensor and pseudoscalar mesons, respectively. We employ $D\to T$ transition form factors based upon light-cone sum rules and the covariant light-front quark model to eva... |
2308.01401 | N\'estor Armesto | Tolga Altinoluk, N\'estor Armesto, Alexander Kovner, Michael Lublinsky | Single inclusive particle production in pA collisions at forward
rapidities: beyond the hybrid model | LaTeX, 7 pages, contribution to DIS2023: XXX International Workshop
on Deep-Inelastic Scattering and Related Subjects, Michigan State University,
USA, 27-31 March 2023 | null | null | null | hep-ph nucl-th | http://creativecommons.org/licenses/by/4.0/ | In this contribution we reconsider the calculation at next-to-leading order
of forward inclusive single hadron production in $pA$ collisions within the
hybrid approach. We conclude that the proper framework to compute this cross
section beyond leading order is not collinear factorization as assumed so far,
but the TM... | [
{
"created": "Wed, 2 Aug 2023 19:49:29 GMT",
"version": "v1"
}
] | 2023-08-04 | [
[
"Altinoluk",
"Tolga",
""
],
[
"Armesto",
"Néstor",
""
],
[
"Kovner",
"Alexander",
""
],
[
"Lublinsky",
"Michael",
""
]
] | In this contribution we reconsider the calculation at next-to-leading order of forward inclusive single hadron production in $pA$ collisions within the hybrid approach. We conclude that the proper framework to compute this cross section beyond leading order is not collinear factorization as assumed so far, but the TMD ... |
hep-ph/9407381 | Dam Thanh Son | M.V.Libanov, V.A.Rubakov, D.T.Son and S.V.Troitsky | Exponentiation of Multiparticle Amplitudes in Scalar Theories | Revtex 3.0, 45 pages, 11 figures (some requires bezier.sty, two
postscript figures appended after \end{document}), INR-866/94 | Phys.Rev.D50:7553-7569,1994 | 10.1103/PhysRevD.50.7553 | null | hep-ph | null | It is argued that the amplitudes of the production of $n$ soft scalar
particles by one or a few energetic ones in theories like $\lambda\phi^4$ has
the exponential form, $A_n\propto\sqrt{n!}\exp[{1\over\lambda}F(\lambda
n,\epsilon)]$, in the regime $\lambda\to 0$, $\lambda n={fixed}$,
$\epsilon={fixed}$, where $\epsi... | [
{
"created": "Tue, 26 Jul 1994 17:13:40 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Libanov",
"M. V.",
""
],
[
"Rubakov",
"V. A.",
""
],
[
"Son",
"D. T.",
""
],
[
"Troitsky",
"S. V.",
""
]
] | It is argued that the amplitudes of the production of $n$ soft scalar particles by one or a few energetic ones in theories like $\lambda\phi^4$ has the exponential form, $A_n\propto\sqrt{n!}\exp[{1\over\lambda}F(\lambda n,\epsilon)]$, in the regime $\lambda\to 0$, $\lambda n={fixed}$, $\epsilon={fixed}$, where $\epsilo... |
2309.00132 | Jae Kim | Jae Jun Kim | When a complementarity in the neutrino and the quark mixing meets a
parameter symmetry and its implications to the unitarity | null | null | null | null | hep-ph | http://creativecommons.org/licenses/by/4.0/ | We present a complementarity that addresses relationships among the
parameters in the neutrino and the quark mixing matrix, use it to estimate the
size of the uncertainty among the elements in the matrix and address its
implications to the unitarity of the quark mixing matrix and Wolfenstein
parameterization and the ... | [
{
"created": "Thu, 31 Aug 2023 20:48:49 GMT",
"version": "v1"
},
{
"created": "Fri, 24 May 2024 18:53:14 GMT",
"version": "v2"
},
{
"created": "Fri, 12 Jul 2024 15:31:43 GMT",
"version": "v3"
}
] | 2024-07-15 | [
[
"Kim",
"Jae Jun",
""
]
] | We present a complementarity that addresses relationships among the parameters in the neutrino and the quark mixing matrix, use it to estimate the size of the uncertainty among the elements in the matrix and address its implications to the unitarity of the quark mixing matrix and Wolfenstein parameterization and the te... |
1609.03955 | Li Lin Yang | Yinqiang Gong, Zhao Li, Xiaofeng Xu, Li Lin Yang and Xiaoran Zhao | Mixed QCD-EW corrections for Higgs boson production at $e^+e^-$
colliders | Version published in Phys.Rev.D | Phys. Rev. D 95, 093003 (2017) | 10.1103/PhysRevD.95.093003 | CP3-16-54; MCnet-16-40 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Since the discovery of the Higgs boson at the Large Hadron Collider, a future
electron-position collider has been proposed for precisely studying its
properties. We investigate the production of the Higgs boson at such an
$e^+e^-$ collider associated with a $Z$ boson, and calculate for the first time
the mixed QCD-el... | [
{
"created": "Tue, 13 Sep 2016 18:05:00 GMT",
"version": "v1"
},
{
"created": "Fri, 28 Oct 2016 04:56:20 GMT",
"version": "v2"
},
{
"created": "Tue, 5 Sep 2017 13:56:56 GMT",
"version": "v3"
}
] | 2017-09-06 | [
[
"Gong",
"Yinqiang",
""
],
[
"Li",
"Zhao",
""
],
[
"Xu",
"Xiaofeng",
""
],
[
"Yang",
"Li Lin",
""
],
[
"Zhao",
"Xiaoran",
""
]
] | Since the discovery of the Higgs boson at the Large Hadron Collider, a future electron-position collider has been proposed for precisely studying its properties. We investigate the production of the Higgs boson at such an $e^+e^-$ collider associated with a $Z$ boson, and calculate for the first time the mixed QCD-elec... |
2212.12172 | Peter Krachkov | P. A. Krachkov, A. I. Milstein, and N. Yu. Muchnoi | Resonant amplification of a relativistic electron bremsstrahlung on an
atom in the undulator field | 5 pages, 2 figures | null | 10.1016/j.physletb.2023.137756 | null | hep-ph hep-ex physics.atom-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is shown that the influence of the undulator field on the motion of a
relativistic electron leads to a significant increase of the bremsstrahlung
cross section on an atom near the end of the spectrum of undulator radiation.
Observation of this effect is quite a realistic task.
| [
{
"created": "Fri, 23 Dec 2022 06:58:11 GMT",
"version": "v1"
}
] | 2023-02-15 | [
[
"Krachkov",
"P. A.",
""
],
[
"Milstein",
"A. I.",
""
],
[
"Muchnoi",
"N. Yu.",
""
]
] | It is shown that the influence of the undulator field on the motion of a relativistic electron leads to a significant increase of the bremsstrahlung cross section on an atom near the end of the spectrum of undulator radiation. Observation of this effect is quite a realistic task. |
hep-ph/0407079 | Junpei Fujimoto | F. Boudjema (1), J. Fujimoto (2), T. Ishikawa (2), T. Kaneko (2),
K.Kato (3), Y. Kurihara (2), and Y. Shimizu (2) ((1) LAPTH, (2) KEK, (3)
Kogakuin Univ.) | Multi-leg calculations with the GRACE/1-LOOP system. --Toward Radiative
Corrections to e+e- -> mu nu-bar u d-bar -- | 5 pages,invited talk at "Loops & Legs in Quantum Field Theory 2004",
Zinnowitz, Germany, April 2004 | null | 10.1016/j.nuclphysbps.2004.09.016 | null | hep-ph | null | We performed the calculation of the full O(alpha) corrections to e+e- -> mu-
nu-bar u d-bar with the help of the GRACE/1-LOOP system. We discuss how a
finite decay width introduces a serious gauge invariance breaking, particularly
for infrared 5-point functions. This is related to the way the reduction of
those funct... | [
{
"created": "Wed, 7 Jul 2004 04:19:27 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Boudjema",
"F.",
""
],
[
"Fujimoto",
"J.",
""
],
[
"Ishikawa",
"T.",
""
],
[
"Kaneko",
"T.",
""
],
[
"Kato",
"K.",
""
],
[
"Kurihara",
"Y.",
""
],
[
"Shimizu",
"Y.",
""
]
] | We performed the calculation of the full O(alpha) corrections to e+e- -> mu- nu-bar u d-bar with the help of the GRACE/1-LOOP system. We discuss how a finite decay width introduces a serious gauge invariance breaking, particularly for infrared 5-point functions. This is related to the way the reduction of those functio... |
2312.14052 | Giorgio Arcadi | Giorgio Arcadi, Juan Carlos Criado, Abdelhak Djouadi | Iteration on the Higgs-portal for vector Dark Matter and its effective
field theory description | 16 pages, 3 figures | null | null | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We reanalyze the effective field theory (EFT) approach for the scenario in
which the particles that account for the dark matter (DM) in the universe are
vector states that interact only through the Standard Model-like Higgs boson.
These DM particles are searched for in direct and indirect detection in
astrophysical e... | [
{
"created": "Thu, 21 Dec 2023 17:20:12 GMT",
"version": "v1"
}
] | 2023-12-22 | [
[
"Arcadi",
"Giorgio",
""
],
[
"Criado",
"Juan Carlos",
""
],
[
"Djouadi",
"Abdelhak",
""
]
] | We reanalyze the effective field theory (EFT) approach for the scenario in which the particles that account for the dark matter (DM) in the universe are vector states that interact only through the Standard Model-like Higgs boson. These DM particles are searched for in direct and indirect detection in astrophysical exp... |
2311.10145 | A. Herrero-Brocal | Antonio Herrero-Brocal, Avelino Vicente | The majoron coupling to charged leptons | 36 pages, 2 figures; v3: added leptoquark contributions, minor
corrections and new references, matches version accepted by JHEP | null | null | IFIC/23-49 | hep-ph | http://creativecommons.org/licenses/by/4.0/ | The particle spectrum of all Majorana neutrino mass models with spontaneous
violation of global lepton number include a Goldstone boson, the so-called
majoron. The presence of this massless pseudoscalar changes the phenomenology
dramatically. In this work we derive general analytical expressions for the
1-loop coupli... | [
{
"created": "Thu, 16 Nov 2023 19:00:17 GMT",
"version": "v1"
},
{
"created": "Mon, 27 Nov 2023 16:32:04 GMT",
"version": "v2"
},
{
"created": "Tue, 26 Dec 2023 11:49:54 GMT",
"version": "v3"
},
{
"created": "Wed, 17 Jan 2024 10:17:36 GMT",
"version": "v4"
}
] | 2024-01-18 | [
[
"Herrero-Brocal",
"Antonio",
""
],
[
"Vicente",
"Avelino",
""
]
] | The particle spectrum of all Majorana neutrino mass models with spontaneous violation of global lepton number include a Goldstone boson, the so-called majoron. The presence of this massless pseudoscalar changes the phenomenology dramatically. In this work we derive general analytical expressions for the 1-loop coupling... |
hep-ph/9608385 | null | L.Micu | The decay constants of pseudoscalar mesons in a relativistic quark model | 11 pages, LaTex | Phys.Rev. D55 (1997) 4151-4156 | 10.1103/PhysRevD.55.4151 | FT-417-1996 | hep-ph | null | The decay constants of pseudoscalar mesons are calculated in a relativistic
quark model which assumes that mesons are made of a valence quark antiquark
pair and of an effective vacuum like component. The results are given in terms
of quark masses and of some free parameters entering the expression of the
internal wav... | [
{
"created": "Tue, 20 Aug 1996 10:56:31 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Micu",
"L.",
""
]
] | The decay constants of pseudoscalar mesons are calculated in a relativistic quark model which assumes that mesons are made of a valence quark antiquark pair and of an effective vacuum like component. The results are given in terms of quark masses and of some free parameters entering the expression of the internal wave ... |
hep-ph/9501404 | Stefan Dittmaier | S. Dittmaier, M. Kuroda, and D. Schildknecht | Refined Analysis of the Electroweak Precision Data | 28 pages latex, 9 figures in uuencoded form, trivial misprint
corrected | Nucl.Phys.B448:3-29,1995 | 10.1016/0550-3213(95)00219-I | BI-TP 94/62 | hep-ph | null | We refine our recent analysis of the electroweak precision data at the \PZO\
pole by including the hadronic decay modes of the \PZO. Within the framework of
an effective Lagrangian we parametrize $SU(2)$ violation by the additional
process-specific parameters $\De y_\nu$, $\De\yh$, and $\De\yb$ (for the
$\PZO\nu\bar\... | [
{
"created": "Mon, 30 Jan 1995 15:29:21 GMT",
"version": "v1"
},
{
"created": "Mon, 6 Feb 1995 16:24:40 GMT",
"version": "v2"
},
{
"created": "Thu, 2 Mar 1995 17:30:30 GMT",
"version": "v3"
}
] | 2010-11-01 | [
[
"Dittmaier",
"S.",
""
],
[
"Kuroda",
"M.",
""
],
[
"Schildknecht",
"D.",
""
]
] | We refine our recent analysis of the electroweak precision data at the \PZO\ pole by including the hadronic decay modes of the \PZO. Within the framework of an effective Lagrangian we parametrize $SU(2)$ violation by the additional process-specific parameters $\De y_\nu$, $\De\yh$, and $\De\yb$ (for the $\PZO\nu\bar\nu... |
hep-ph/0112060 | Orlando L. G. Peres | A. M. Gago, M. M. Guzzo, P. C. de Holanda, H. Nunokawa, O. L. G.
Peres, V. Pleitez and R. Zukanovich Funchal | Global Analysis of the post-SNO Solar Neutrino Data for Standard and
Non-Standard Oscillation Mechanisms | Minor changes in the solar magnetic field profile used, and some
refferences added. Final version to appear in PRD | Phys.Rev. D65 (2002) 073012 | 10.1103/PhysRevD.65.073012 | null | hep-ph astro-ph hep-ex | null | What can we learn from solar neutrino observations? Is there any solution to
the solar neutrino anomaly which is favored by the present experimental
panorama? After SNO results, is it possible to affirm that neutrinos have mass?
In order to answer such questions we analyze the current available data from
the solar ne... | [
{
"created": "Tue, 4 Dec 2001 21:00:09 GMT",
"version": "v1"
},
{
"created": "Thu, 21 Mar 2002 09:07:34 GMT",
"version": "v2"
}
] | 2009-11-07 | [
[
"Gago",
"A. M.",
""
],
[
"Guzzo",
"M. M.",
""
],
[
"de Holanda",
"P. C.",
""
],
[
"Nunokawa",
"H.",
""
],
[
"Peres",
"O. L. G.",
""
],
[
"Pleitez",
"V.",
""
],
[
"Funchal",
"R. Zukanovich",
""
]
] | What can we learn from solar neutrino observations? Is there any solution to the solar neutrino anomaly which is favored by the present experimental panorama? After SNO results, is it possible to affirm that neutrinos have mass? In order to answer such questions we analyze the current available data from the solar neut... |
1409.6311 | Aurel Schneider | Alexander Merle and Aurel Schneider | Production of Sterile Neutrino Dark Matter and the 3.5 keV line | Appendix added; slight change in distribution function, main results
not affected | null | 10.1016/j.physletb.2015.07.080 | MPP--2014--348 | hep-ph astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The recent observation of an X-ray line at an energy of 3.5 keV mainly from
galaxy clusters has initiated a discussion about whether we may have seen a
possible dark matter signal. If confirmed, this signal could stem from a
decaying sterile neutrino of a mass of 7.1 keV. Such a particle could make up
all the dark ma... | [
{
"created": "Mon, 22 Sep 2014 20:00:15 GMT",
"version": "v1"
},
{
"created": "Wed, 11 Feb 2015 14:23:30 GMT",
"version": "v2"
}
] | 2015-09-30 | [
[
"Merle",
"Alexander",
""
],
[
"Schneider",
"Aurel",
""
]
] | The recent observation of an X-ray line at an energy of 3.5 keV mainly from galaxy clusters has initiated a discussion about whether we may have seen a possible dark matter signal. If confirmed, this signal could stem from a decaying sterile neutrino of a mass of 7.1 keV. Such a particle could make up all the dark matt... |
1005.1882 | Xiong Wei Liu | Zhao Zhang, Teiji Kunihiro | Multiple critical point structure for chiral phase transition induced by
charge neutrality and vector interaction | 9 pages, 1 table, 1 figure. To appear in Proceedings for "Compact
stars in the QCD phase diagram II (CSQCD II), May 20-24, 2009, KIAA at Peking
University, Beijing - P. R. China [http://vega.bac.pku.edu.cn/rxxu/csqcd.htm] | null | null | null | hep-ph astro-ph.SR | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The combined effect of the repulsive vector interaction and the positive
electric chemical potential on the chiral phase transition is investigated by
considering neutral color superconductivity. Under the charge-neutrality
constraint, the chiral condensate, diquark condensate and quark number
densities are obtained ... | [
{
"created": "Tue, 11 May 2010 16:33:13 GMT",
"version": "v1"
},
{
"created": "Wed, 19 Jan 2011 11:29:05 GMT",
"version": "v2"
}
] | 2011-01-20 | [
[
"Zhang",
"Zhao",
""
],
[
"Kunihiro",
"Teiji",
""
]
] | The combined effect of the repulsive vector interaction and the positive electric chemical potential on the chiral phase transition is investigated by considering neutral color superconductivity. Under the charge-neutrality constraint, the chiral condensate, diquark condensate and quark number densities are obtained in... |
hep-ph/0404111 | Sven-Olaf Moch | A. Vogt, S. Moch and J.A.M. Vermaseren | The Three-Loop Splitting Functions in QCD: The Singlet Case | 41 pages, Latex, 12 figures | Nucl.Phys. B691 (2004) 129-181 | 10.1016/j.nuclphysb.2004.04.024 | NIKHEF 04-004, DESY 04-060, SFB/CPP-04-12 | hep-ph | null | We compute the next-to-next-to-leading order (NNLO) contributions to the
splitting functions governing the evolution of the unpolarized flavour-singlet
parton densities in perturbative QCD. The exact expressions are presented in
both Mellin-N and Bjorken-x space. We also provide accurate parametrizations
for practica... | [
{
"created": "Wed, 14 Apr 2004 07:02:13 GMT",
"version": "v1"
}
] | 2010-04-05 | [
[
"Vogt",
"A.",
""
],
[
"Moch",
"S.",
""
],
[
"Vermaseren",
"J. A. M.",
""
]
] | We compute the next-to-next-to-leading order (NNLO) contributions to the splitting functions governing the evolution of the unpolarized flavour-singlet parton densities in perturbative QCD. The exact expressions are presented in both Mellin-N and Bjorken-x space. We also provide accurate parametrizations for practical ... |
0808.2462 | Josef Pradler | Josef Pradler, Frank Daniel Steffen | Thermal relic abundances of long-lived staus | 34 pages, 8 figures; one reference added; matches published version | Nucl.Phys.B809:318-346,2009 | 10.1016/j.nuclphysb.2008.10.009 | MPP-2008-107 | hep-ph astro-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In supersymmetric models with a long-lived stau being the lightest Standard
Model superpartner, the stau abundance during primordial nucleosynthesis is
tightly constrained. Considering the complete set of stau annihilation channels
in the minimal supersymmetric Standard Model (MSSM) with real parameters for
scenarios... | [
{
"created": "Mon, 18 Aug 2008 19:58:21 GMT",
"version": "v1"
},
{
"created": "Thu, 28 Aug 2008 19:16:36 GMT",
"version": "v2"
},
{
"created": "Wed, 22 Oct 2008 18:21:09 GMT",
"version": "v3"
}
] | 2010-04-05 | [
[
"Pradler",
"Josef",
""
],
[
"Steffen",
"Frank Daniel",
""
]
] | In supersymmetric models with a long-lived stau being the lightest Standard Model superpartner, the stau abundance during primordial nucleosynthesis is tightly constrained. Considering the complete set of stau annihilation channels in the minimal supersymmetric Standard Model (MSSM) with real parameters for scenarios i... |
1512.03978 | Andrea Donini | A. Donini | A scalar field coupled to a brane in ${\cal M}_4 \times {\cal S}_1$.
Part I: Kaluza-Klein spectrum and zero-mode localization | Replaced version with significant changes: shorter introduction;
computation of the exact spectrum with BLKT; KK-decomposition of the model
when a self-interaction is added. 32 pages, 7 pdf figures | null | null | IFIC 15-90 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A toy model where a massless, real, scalar field $\Phi$ in a compact
space-time ${\cal M}_4 \times {\cal S}_1$ is coupled to a brane (parametrized
as a $\delta$-function) through the unique relevant operator $\delta (y) \Phi^2
(x,y)$ is considered. The exact Kaluza-Klein spectrum of the model is computed
for any valu... | [
{
"created": "Sat, 12 Dec 2015 23:46:46 GMT",
"version": "v1"
},
{
"created": "Fri, 2 Dec 2016 12:03:05 GMT",
"version": "v2"
}
] | 2016-12-05 | [
[
"Donini",
"A.",
""
]
] | A toy model where a massless, real, scalar field $\Phi$ in a compact space-time ${\cal M}_4 \times {\cal S}_1$ is coupled to a brane (parametrized as a $\delta$-function) through the unique relevant operator $\delta (y) \Phi^2 (x,y)$ is considered. The exact Kaluza-Klein spectrum of the model is computed for any value ... |
1810.02588 | Joel Oredsson | Joel Oredsson, Johan Rathsman | $Z_2$ breaking effects in 2-loop RG evolution of 2HDM | 33 pages, journal version | null | 10.1007/JHEP02(2019)152 | LU TP 18-31 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the effects of a $Z_2$ symmetry in the CP-conserving
Two-Higgs-Doublet-Model (2HDM); which is often imposed to prevent
Flavor-Changing-Neutral-Currents (FCNCs) at tree-level. Specifically, we
analyze how a breaking of the $Z_2$ symmetry spreads during renormalization
group evolution; employing general ... | [
{
"created": "Fri, 5 Oct 2018 09:53:38 GMT",
"version": "v1"
},
{
"created": "Thu, 7 Mar 2019 16:41:38 GMT",
"version": "v2"
}
] | 2019-03-27 | [
[
"Oredsson",
"Joel",
""
],
[
"Rathsman",
"Johan",
""
]
] | We investigate the effects of a $Z_2$ symmetry in the CP-conserving Two-Higgs-Doublet-Model (2HDM); which is often imposed to prevent Flavor-Changing-Neutral-Currents (FCNCs) at tree-level. Specifically, we analyze how a breaking of the $Z_2$ symmetry spreads during renormalization group evolution; employing general 2-... |
hep-ph/9901206 | Apostolos Pilaftsis | Apostolos Pilaftsis | Radiatively Induced Neutrino Masses and Large Higgs-Neutrino Couplings
in the Standard Model with Majorana Fields | Making the text of an old paper electronically available | Z.Phys. C55 (1992) 275-282 | 10.1007/BF01482590 | null | hep-ph | null | The Higgs sector of the Standard Model with one right-handed neutrino per
family is systematically analyzed. In a model with intergenerational
independent mixings between families, we can account for very light neutrinos
acquiring Majorana masses radiatively at the first electroweak loop level. We
also find that in s... | [
{
"created": "Sat, 2 Jan 1999 15:30:04 GMT",
"version": "v1"
}
] | 2015-06-25 | [
[
"Pilaftsis",
"Apostolos",
""
]
] | The Higgs sector of the Standard Model with one right-handed neutrino per family is systematically analyzed. In a model with intergenerational independent mixings between families, we can account for very light neutrinos acquiring Majorana masses radiatively at the first electroweak loop level. We also find that in suc... |
hep-ph/0308302 | Yu Jia | Yu Jia (Michigan State U.) | Heavy-quark recombination in Z^0 decay | 4 pages, 2 figures, prepared for CIPANP2003: Conference on the
Intersections of Particle and Nuclear Physics, New York City, May 19-24, 2003 | null | 10.1063/1.1664279 | null | hep-ph | null | We briefly review the recent advances of heavy-quark recombination mechanism.
This mechanism predicts a class of power-suppressed 3-jet events in $Z^0$
decay, such as $b\bar{b}q$ and $b\bar{b}\bar{q}$. Furthermore, heavy quark
fragmentation function also receives a contribution from this mechanism. Some
light can be ... | [
{
"created": "Thu, 28 Aug 2003 18:39:02 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Jia",
"Yu",
"",
"Michigan State U."
]
] | We briefly review the recent advances of heavy-quark recombination mechanism. This mechanism predicts a class of power-suppressed 3-jet events in $Z^0$ decay, such as $b\bar{b}q$ and $b\bar{b}\bar{q}$. Furthermore, heavy quark fragmentation function also receives a contribution from this mechanism. Some light can be sh... |
1508.06640 | Doojin Kim | Doojin Kim, Jong-Chul Park | An alternative interpretation for cosmic ray peaks | 9 pages, 3 figures | null | 10.1016/j.physletb.2015.09.070 | CETUP2015-019 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose an alternative mechanism based upon dark matter (DM)
interpretation for anomalous peak signatures in cosmic ray measurements,
assuming an extended dark sector with two DM species. This is contrasted with
previous effort to explain various line-like cosmic-ray excesses in the context
of DM models where the ... | [
{
"created": "Wed, 26 Aug 2015 20:09:56 GMT",
"version": "v1"
}
] | 2015-10-07 | [
[
"Kim",
"Doojin",
""
],
[
"Park",
"Jong-Chul",
""
]
] | We propose an alternative mechanism based upon dark matter (DM) interpretation for anomalous peak signatures in cosmic ray measurements, assuming an extended dark sector with two DM species. This is contrasted with previous effort to explain various line-like cosmic-ray excesses in the context of DM models where the re... |
2405.02899 | Mohammed Boukidi | Rachid Benbrik (1), Mohammed Boukidi (1), Stefano Moretti (2) (3) ((1)
Polydisciplinary Faculty, Laboratory of Fundamental and Applied Physics, Cadi
Ayyad University, Sidi Bouzid, Safi, Morocco, (2) School of Physics and
Astronomy, University of Southampton, United Kingdom, (3) Department of
Physics and Astrono... | Superposition of CP-Even and CP-Odd Higgs Resonances: Explaining the 95
GeV Excesses within a Two-Higgs Doublet Model | 10 pages, 7 figures. arXiv admin note: text overlap with
arXiv:2306.09029 | null | null | null | hep-ph | http://creativecommons.org/licenses/by/4.0/ | We propose an explanation for the observed excesses around 95 GeV in the
di-photon and di-tau invariant mass distributions, as reported by the CMS
collaboration at the Large Hadron Collider (LHC). These findings are
complemented by a long-standing discrepancy in the $b\bar{b}$ invariant mass at
the Large Electron-Pos... | [
{
"created": "Sun, 5 May 2024 11:33:08 GMT",
"version": "v1"
}
] | 2024-05-07 | [
[
"Benbrik",
"Rachid",
""
],
[
"Boukidi",
"Mohammed",
""
],
[
"Moretti",
"Stefano",
""
]
] | We propose an explanation for the observed excesses around 95 GeV in the di-photon and di-tau invariant mass distributions, as reported by the CMS collaboration at the Large Hadron Collider (LHC). These findings are complemented by a long-standing discrepancy in the $b\bar{b}$ invariant mass at the Large Electron-Posit... |
1407.5053 | Kei Yagyu | Cheng-Wei Chiang, Shinya Kanemura and Kei Yagyu | Novel Constraint on Parameter Space of the Georgi-Machacek Model by
Current LHC Data | 10 pages, 3 figures, references added, Fig. 1 modified | Phys. Rev. D 90, 115025 (2014) | 10.1103/PhysRevD.90.115025 | UT-HET-096 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The same-sign diboson process $pp\to W^\pm W^\pm jj$ has been measured at the
LHC using leptonic decay channels of the $W$ bosons, with production cross
sections of two fiducial regions reported to be consistent with the standard
model expectations within 1 sigma. These results constrain new physics models
with a mod... | [
{
"created": "Fri, 18 Jul 2014 16:13:33 GMT",
"version": "v1"
},
{
"created": "Sat, 15 Nov 2014 03:03:48 GMT",
"version": "v2"
}
] | 2015-01-07 | [
[
"Chiang",
"Cheng-Wei",
""
],
[
"Kanemura",
"Shinya",
""
],
[
"Yagyu",
"Kei",
""
]
] | The same-sign diboson process $pp\to W^\pm W^\pm jj$ has been measured at the LHC using leptonic decay channels of the $W$ bosons, with production cross sections of two fiducial regions reported to be consistent with the standard model expectations within 1 sigma. These results constrain new physics models with a modif... |
1605.07040 | Sergey Afonin | S. S. Afonin | Lower and upper bounds on the mass of light quark-antiquark scalar
resonance in the SVZ sum rules | Matches the published version | Int. J. Mod. Phys. A31, 1650164 (2016) | 10.1142/S0217751X16501645 | null | hep-ph hep-th nucl-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The calculation of the mass of light scalar isosinglet meson within the
Shifman-Vainshtein-Zakharov (SVZ) sum rules is revisited. We develop simple
analytical methods for estimation of hadron masses in the SVZ approach and try
to reveal the origin of their numerical values. The calculations of hadron
parameters in th... | [
{
"created": "Mon, 23 May 2016 14:51:28 GMT",
"version": "v1"
},
{
"created": "Thu, 24 Nov 2016 13:28:37 GMT",
"version": "v2"
}
] | 2016-11-28 | [
[
"Afonin",
"S. S.",
""
]
] | The calculation of the mass of light scalar isosinglet meson within the Shifman-Vainshtein-Zakharov (SVZ) sum rules is revisited. We develop simple analytical methods for estimation of hadron masses in the SVZ approach and try to reveal the origin of their numerical values. The calculations of hadron parameters in the ... |
hep-ph/0608318 | Zsolt Szep | T. Herpay and Zs. Szep | The boundary of the first order chiral phase transition in the
m_pi-m_K--plane with a linear sigma model | 4 pages, 1 figure, uses espcrc1.sty; to appear in the proceedings of
Strong and Electroweak Matter 2006 (SEWM06), BNL, May 2006 | Nucl.Phys.A785:174-177,2007 | 10.1016/j.nuclphysa.2006.11.060 | null | hep-ph | null | Tree-level and complete one-loop parametrisation of the linear sigma model
(LSM) is performed and the phase boundary between first order and crossover
transition regions of the m_pi-m_K-plane is determined using the optimised
perturbation theory (OPT) as a resummation tool of perturbative series. Away
from the physic... | [
{
"created": "Wed, 30 Aug 2006 10:42:35 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Herpay",
"T.",
""
],
[
"Szep",
"Zs.",
""
]
] | Tree-level and complete one-loop parametrisation of the linear sigma model (LSM) is performed and the phase boundary between first order and crossover transition regions of the m_pi-m_K-plane is determined using the optimised perturbation theory (OPT) as a resummation tool of perturbative series. Away from the physical... |
hep-ph/9409330 | Paul Frampton | Paul H. Frampton and Thomas W. Kephart | Simple Non-Abelian Finite Flavor Groups and Fermion Masses | 23 pages, IFP-702-UNC and VAND-TH-94-8 | Int.J.Mod.Phys.A10:4689-4704,1995 | 10.1142/S0217751X95002187 | null | hep-ph | null | The use of nonabelian discrete groups G as family symmetries is discussed in
detail. Out of all such groups up to order g = 31, the most appealing
candidates are two subgroups of SU(2): the dicyclic [double dihedral] group G =
$Q_6 ={ }^{(d)}D_3$ ( g = 12 ) and the double tetrahedral group $^{(d)}T =
Q_4\tilde{\times... | [
{
"created": "Thu, 15 Sep 1994 17:13:23 GMT",
"version": "v1"
}
] | 2011-01-13 | [
[
"Frampton",
"Paul H.",
""
],
[
"Kephart",
"Thomas W.",
""
]
] | The use of nonabelian discrete groups G as family symmetries is discussed in detail. Out of all such groups up to order g = 31, the most appealing candidates are two subgroups of SU(2): the dicyclic [double dihedral] group G = $Q_6 ={ }^{(d)}D_3$ ( g = 12 ) and the double tetrahedral group $^{(d)}T = Q_4\tilde{\times}Z... |
2012.14034 | Harri Waltari | Amit Chakraborty, Stefano Moretti, Claire H. Shepherd-Themistocleous
and Harri Waltari | Extraction of neutrino Yukawa parameters from displaced vertices of
sneutrinos | 21 pages, 7 figures. Revised version, matches the version accepted to
JHEP | JHEP 06 (2021) 027 | 10.1007/JHEP06(2021)027 | null | hep-ph | http://creativecommons.org/licenses/by/4.0/ | We study displaced signatures of sneutrino pairs potentially emerging at the
Large Hadron Collider (LHC) in a Next-to-Minimal Supersymmetric Standard Model
supplemented with right-handed neutrinos triggering a Type-I seesaw mechanism.
We show how such signatures can be established through a heavy Higgs portal in
the ... | [
{
"created": "Sun, 27 Dec 2020 23:43:33 GMT",
"version": "v1"
},
{
"created": "Fri, 21 May 2021 10:28:50 GMT",
"version": "v2"
}
] | 2021-06-07 | [
[
"Chakraborty",
"Amit",
""
],
[
"Moretti",
"Stefano",
""
],
[
"Shepherd-Themistocleous",
"Claire H.",
""
],
[
"Waltari",
"Harri",
""
]
] | We study displaced signatures of sneutrino pairs potentially emerging at the Large Hadron Collider (LHC) in a Next-to-Minimal Supersymmetric Standard Model supplemented with right-handed neutrinos triggering a Type-I seesaw mechanism. We show how such signatures can be established through a heavy Higgs portal in the pr... |
1012.4377 | Krishna Kingkar Pathak | Bhaskar Jyoti Hazarika, Krishna Kingkar Pathak and D K Choudhury | Isgur-Wise function in a QCD potential model with coulombic potential as
perturbation | paper has been modified in Airy functions calculation upto o(r^3) | Mod. Phys. Lett. A, Vol. 26, No. 21 (2011) 1547-1554 | 10.1142/S0217732311036000 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study heavy light mesons in a QCD inspired quark model with the Cornell
potential$-\frac{4\alpha_{S}}{3r}+br+c$. Here we consider the linear term $br$
as the parent and $-\frac{4\alpha_{S}}{3r}+c$ i.e.the Coloumbic part as the
perturbation.The linear parent leads to Airy function as the unperturbed
wavefunction. W... | [
{
"created": "Mon, 20 Dec 2010 16:10:55 GMT",
"version": "v1"
},
{
"created": "Mon, 28 Mar 2011 01:22:28 GMT",
"version": "v2"
},
{
"created": "Fri, 26 Aug 2011 15:01:11 GMT",
"version": "v3"
}
] | 2015-05-20 | [
[
"Hazarika",
"Bhaskar Jyoti",
""
],
[
"Pathak",
"Krishna Kingkar",
""
],
[
"Choudhury",
"D K",
""
]
] | We study heavy light mesons in a QCD inspired quark model with the Cornell potential$-\frac{4\alpha_{S}}{3r}+br+c$. Here we consider the linear term $br$ as the parent and $-\frac{4\alpha_{S}}{3r}+c$ i.e.the Coloumbic part as the perturbation.The linear parent leads to Airy function as the unperturbed wavefunction. We ... |
hep-ph/9510266 | null | Thomas Hambye | Symmetry breaking induced by top quark loops from a model without scalar
mass | latex | Phys.Lett.B371:87-92,1996 | 10.1016/0370-2693(95)01570-1 | UCL-IPT-95-16 | hep-ph | null | Considering the standard model as an effective electroweak theory, in which
we have no scalar mass term in the Higgs potential $(\mu^2=0)$, we show that
the spontaneous symmetry breaking of $SU(2)_L \times U(1)$ can be induced by
top loops. The Higgs boson mass obtained is smaller than 300 GeV.
| [
{
"created": "Tue, 10 Oct 1995 11:47:12 GMT",
"version": "v1"
}
] | 2011-01-13 | [
[
"Hambye",
"Thomas",
""
]
] | Considering the standard model as an effective electroweak theory, in which we have no scalar mass term in the Higgs potential $(\mu^2=0)$, we show that the spontaneous symmetry breaking of $SU(2)_L \times U(1)$ can be induced by top loops. The Higgs boson mass obtained is smaller than 300 GeV. |
1212.4856 | David Morrissey | Karol Krizka, Abhishek Kumar, and David E. Morrissey | Very Light Scalar Top Quarks at the LHC | 38 pages, 5 figures, 2 tables, added references and comments to match
journal version | null | 10.1103/PhysRevD.87.095016 | null | hep-ph hep-ex | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A very light scalar top (stop) superpartner is motivated by naturalness and
electroweak baryogenesis. When the mass of the stop is less than the sum of the
masses of the top quark and the lightest neutralino superpartner, as well as
the of the masses of the lightest chargino and the bottom quark, the dominant
decay c... | [
{
"created": "Wed, 19 Dec 2012 21:19:38 GMT",
"version": "v1"
},
{
"created": "Wed, 18 Dec 2013 17:59:52 GMT",
"version": "v2"
}
] | 2013-12-19 | [
[
"Krizka",
"Karol",
""
],
[
"Kumar",
"Abhishek",
""
],
[
"Morrissey",
"David E.",
""
]
] | A very light scalar top (stop) superpartner is motivated by naturalness and electroweak baryogenesis. When the mass of the stop is less than the sum of the masses of the top quark and the lightest neutralino superpartner, as well as the of the masses of the lightest chargino and the bottom quark, the dominant decay cha... |
1208.4513 | Pablo Roig | P. Roig, I. M. Nugent, T. Przedzinski, O. Shekhovtsova, Z. Was | Theoretical inputs and errors in the new hadronic currents in TAUOLA | 5 pages, no figures, contribution to the Proceedings of the
QCD@Work12 Conference | null | 10.1063/1.4763492 | UAB-FT-718 | hep-ph hep-ex | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The new hadronic currents implemented in the TAUOLA library are obtained in
the unified and consistent framework of Resonance Chiral Theory: a Lagrangian
approach in which the resonances exchanged in the hadronic tau decays are
active degrees of freedom included in a way that reproduces the low-energy
results of Chir... | [
{
"created": "Wed, 22 Aug 2012 14:43:20 GMT",
"version": "v1"
}
] | 2015-06-11 | [
[
"Roig",
"P.",
""
],
[
"Nugent",
"I. M.",
""
],
[
"Przedzinski",
"T.",
""
],
[
"Shekhovtsova",
"O.",
""
],
[
"Was",
"Z.",
""
]
] | The new hadronic currents implemented in the TAUOLA library are obtained in the unified and consistent framework of Resonance Chiral Theory: a Lagrangian approach in which the resonances exchanged in the hadronic tau decays are active degrees of freedom included in a way that reproduces the low-energy results of Chiral... |
hep-ph/9512284 | Thomas Gehrmann | T. Gehrmann | Production of $J/\psi$-pairs at HERA-$\vec{{\rm N}}$ | 8 pages, LATeX, 3 figures availabe as .uu-file | Phys.Rev. D53 (1996) 5310-5313 | 10.1103/PhysRevD.53.5310 | DTP/95/80 | hep-ph | null | The production of $J/\psi$-pairs as a possible measure of the polarized gluon
distribution $\Delta G(x)$ is studied for proton--nucleon collisions at
$\sqrt{s} =40\;\mbox{GeV}^2$ (HERA-$\vec{{\rm N}}$). Possibilities of
reconstructing the helicity state of at least one of the $J/\psi$'s are
critically reviewed. The o... | [
{
"created": "Tue, 12 Dec 1995 11:36:42 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Gehrmann",
"T.",
""
]
] | The production of $J/\psi$-pairs as a possible measure of the polarized gluon distribution $\Delta G(x)$ is studied for proton--nucleon collisions at $\sqrt{s} =40\;\mbox{GeV}^2$ (HERA-$\vec{{\rm N}}$). Possibilities of reconstructing the helicity state of at least one of the $J/\psi$'s are critically reviewed. The obs... |
0810.3863 | Michal Malinsky | Stefan Antusch, Stephen F. King, Michal Malinsky | Perturbative Estimates of Lepton Mixing Angles in Unified Models | 21 pages; v2: minor corrections | Nucl.Phys.B820:32-46,2009 | 10.1016/j.nuclphysb.2009.05.006 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Many unified models predict two large neutrino mixing angles, with the
charged lepton mixing angles being small and quark-like, and the neutrino
masses being hierarchical. Assuming this, we present simple approximate
analytic formulae giving the lepton mixing angles in terms of the underlying
high energy neutrino mix... | [
{
"created": "Tue, 21 Oct 2008 15:53:28 GMT",
"version": "v1"
},
{
"created": "Thu, 6 Nov 2008 16:11:39 GMT",
"version": "v2"
}
] | 2010-04-15 | [
[
"Antusch",
"Stefan",
""
],
[
"King",
"Stephen F.",
""
],
[
"Malinsky",
"Michal",
""
]
] | Many unified models predict two large neutrino mixing angles, with the charged lepton mixing angles being small and quark-like, and the neutrino masses being hierarchical. Assuming this, we present simple approximate analytic formulae giving the lepton mixing angles in terms of the underlying high energy neutrino mixin... |
1912.12494 | Alexander Studenikin | Alexander Studenikin | Neutrino oscillations and evolution in external environments: New
effects | 6 pages in LaTex, to appear in the proceedings of the European
Physical Society Conference on High Energy Physics - EPS-HEP2019 - 10-17
July, 2019, Ghent, Belgium. arXiv admin note: text overlap with
arXiv:1912.12491 | Pos EPS-HEP2019 374 | null | null | hep-ph astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | During a period of about two decades we have realized a programme of
systematic investigations of different aspects of neutrino propagation in
extreme external environments and have predicted and studied several new
phenomena that are engendered by the presence of external magnetic fields and
dense matter. The starti... | [
{
"created": "Sat, 28 Dec 2019 18:05:52 GMT",
"version": "v1"
}
] | 2020-09-04 | [
[
"Studenikin",
"Alexander",
""
]
] | During a period of about two decades we have realized a programme of systematic investigations of different aspects of neutrino propagation in extreme external environments and have predicted and studied several new phenomena that are engendered by the presence of external magnetic fields and dense matter. The starting... |
1507.04431 | Takaaki Nomura | Chuan-Hung Chen, Takaaki Nomura | 2 TeV Higgs boson and diboson excess at the LHC | 12 pages, 7 figures, title changed, Fig.2 corrected, comments and
references added, version to appear in PLB | null | 10.1016/j.physletb.2015.08.028 | null | hep-ph hep-ex | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Diboson resonance with mass around 2 TeV in the dijet invariant mass spectrum
is reported by ATLAS experiment in proton-proton collisions at $\sqrt{s}=8$
TeV. We propose that the candidate of resonance is a heavy neutral Higgs $H^0$
or charged Higgs $H^\pm$ and use the extended two-Higgs-doublet (THD) to
demonstrate ... | [
{
"created": "Thu, 16 Jul 2015 01:55:06 GMT",
"version": "v1"
},
{
"created": "Mon, 20 Jul 2015 13:56:18 GMT",
"version": "v2"
},
{
"created": "Tue, 18 Aug 2015 12:17:32 GMT",
"version": "v3"
}
] | 2015-09-30 | [
[
"Chen",
"Chuan-Hung",
""
],
[
"Nomura",
"Takaaki",
""
]
] | Diboson resonance with mass around 2 TeV in the dijet invariant mass spectrum is reported by ATLAS experiment in proton-proton collisions at $\sqrt{s}=8$ TeV. We propose that the candidate of resonance is a heavy neutral Higgs $H^0$ or charged Higgs $H^\pm$ and use the extended two-Higgs-doublet (THD) to demonstrate th... |
1305.2172 | A. D. Polosa | L Maiani, AD Polosa, V Riquer | Bounds to the Higgs Sector Masses in Minimal Supersymmetry from LHC Data | 5 pages, 5 figures, comments added, references updated | Physics Letters B 724 (2013) 274-277 | 10.1016/j.physletb.2013.06.026 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We update our analysis of the Higgs sector masses in Minimal Supersymmetry
and in the Two-Higgs Doublet Model to the final ATLAS and CMS data from the
2011-2012 LHC run.
| [
{
"created": "Thu, 9 May 2013 18:35:37 GMT",
"version": "v1"
},
{
"created": "Sun, 16 Jun 2013 08:05:04 GMT",
"version": "v2"
}
] | 2013-07-11 | [
[
"Maiani",
"L",
""
],
[
"Polosa",
"AD",
""
],
[
"Riquer",
"V",
""
]
] | We update our analysis of the Higgs sector masses in Minimal Supersymmetry and in the Two-Higgs Doublet Model to the final ATLAS and CMS data from the 2011-2012 LHC run. |
hep-ph/0006324 | V. A. Ilyin | V.A. Ilyin, M. Maltoni, V.A. Novikov, L.B. Okun, A.N. Rozanov and M.I.
Vysotsky | On the search for 50 GeV neutrinos | Standard LaTeX, 9 pages, 2 tables, 3 figures | Phys.Lett. B503 (2001) 126-132 | 10.1016/S0370-2693(01)00243-X | ITEP-PH-2/2000, IFIC-00/39, SINP MSU 2000-20/624 | hep-ph | null | Using the computer code CompHEP we estimate the number of events and the
background, at LEP II and TESLA, for the reaction $e^+ e^- \to N\bar{N}\gamma$,
where $N$ is a hypothetical Dirac neutrino with mass of the order of 50 GeV.
| [
{
"created": "Wed, 28 Jun 2000 17:28:40 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Ilyin",
"V. A.",
""
],
[
"Maltoni",
"M.",
""
],
[
"Novikov",
"V. A.",
""
],
[
"Okun",
"L. B.",
""
],
[
"Rozanov",
"A. N.",
""
],
[
"Vysotsky",
"M. I.",
""
]
] | Using the computer code CompHEP we estimate the number of events and the background, at LEP II and TESLA, for the reaction $e^+ e^- \to N\bar{N}\gamma$, where $N$ is a hypothetical Dirac neutrino with mass of the order of 50 GeV. |
hep-ph/9310237 | Pankaj Jain | Pankaj Jain and John P. Ralston | Three Successful Tests of Color Transparency and Nuclear Filtering | (To be published in the Proceedings of the V Rencontre de Blois
meeting on Elastic and Diffractive Phenomenon, edited C. I. Tan and H. M.
Fried (Brown University 1993) (World Scientific, in press)), 6 pages, 1
figure (hard copy available upon request), report # KUHEP-93-47 | null | null | null | hep-ph | null | We review the theoretical formalism for hard exclusive processes in a nuclear
medium. Theory suggests that these processes will show the very interesting
phenomena of color transparency and nuclear filtering. The survival probability
in nuclear media has also been predicted to show a scaling behavior at large
momentu... | [
{
"created": "Wed, 6 Oct 1993 16:51:24 GMT",
"version": "v1"
}
] | 2009-09-25 | [
[
"Jain",
"Pankaj",
""
],
[
"Ralston",
"John P.",
""
]
] | We review the theoretical formalism for hard exclusive processes in a nuclear medium. Theory suggests that these processes will show the very interesting phenomena of color transparency and nuclear filtering. The survival probability in nuclear media has also been predicted to show a scaling behavior at large momentum ... |
hep-ph/0008107 | Gursevil Turan | E.O.Iltan (METU, Ankara) and G.Turan (METU, Ankara) | b --> s \tau^+ \tau^- decay in the two Higgs doublet model with flavor
changing neutral currents | 16 pages, 15 figures | Phys.Rev. D63 (2001) 115007 | 10.1103/PhysRevD.63.115007 | null | hep-ph | null | We study the decay width and forward-backward asymmetry of the lepton pair
for the inclusive decay b --> s \tau^+ \tau^- in the two Higgs doublet model
with three level flavor changing neutral currents (model III) and analyse the
dependencies of these quantities on the model III parameters, including the
leading orde... | [
{
"created": "Fri, 11 Aug 2000 08:33:22 GMT",
"version": "v1"
},
{
"created": "Wed, 2 May 2001 12:04:33 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Iltan",
"E. O.",
"",
"METU, Ankara"
],
[
"Turan",
"G.",
"",
"METU, Ankara"
]
] | We study the decay width and forward-backward asymmetry of the lepton pair for the inclusive decay b --> s \tau^+ \tau^- in the two Higgs doublet model with three level flavor changing neutral currents (model III) and analyse the dependencies of these quantities on the model III parameters, including the leading order ... |
hep-ph/0201008 | Danny Marfatia | Paul H. Frampton, Sheldon L. Glashow and Danny Marfatia | Zeroes of the Neutrino Mass Matrix | Version to appear in PLB | Phys.Lett. B536 (2002) 79-82 | 10.1016/S0370-2693(02)01817-8 | IFP-805-UNC | hep-ph | null | We assume there to be precisely three left-handed neutrino states whose
Majorana masses are generated by an unspecified mechanism. Were CP conserved,
the symmetric neutrino mass matrix M would be real and all six of its distinct
entries could be experimentally determined. But CP is not conserved so that M
is likely t... | [
{
"created": "Wed, 2 Jan 2002 21:00:06 GMT",
"version": "v1"
},
{
"created": "Fri, 26 Apr 2002 20:15:27 GMT",
"version": "v2"
}
] | 2009-11-07 | [
[
"Frampton",
"Paul H.",
""
],
[
"Glashow",
"Sheldon L.",
""
],
[
"Marfatia",
"Danny",
""
]
] | We assume there to be precisely three left-handed neutrino states whose Majorana masses are generated by an unspecified mechanism. Were CP conserved, the symmetric neutrino mass matrix M would be real and all six of its distinct entries could be experimentally determined. But CP is not conserved so that M is likely to ... |
hep-ph/0608087 | Jong-Phil Lee | Jong-Phil Lee (KIAS) | Radiative $B\to K_1$ decays in the light-cone sum rules | 15 pages, 4 figures | Phys.Rev.D74:074001,2006 | 10.1103/PhysRevD.74.074001 | null | hep-ph | null | The weak form factor for $B\to K_{1B}$ where $K_{1B}$ is the $^1P_1$ state is
calculated in the light-cone sum rules (LCSR). Combining the quark model result
for the form factor of $B\to K_{1A}$ with $K_{1A}$ being the $^3P_1$ state, we
have larger values for $B\to K_1$ form factors than the previous LCSR results.
Th... | [
{
"created": "Tue, 8 Aug 2006 08:22:50 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Lee",
"Jong-Phil",
"",
"KIAS"
]
] | The weak form factor for $B\to K_{1B}$ where $K_{1B}$ is the $^1P_1$ state is calculated in the light-cone sum rules (LCSR). Combining the quark model result for the form factor of $B\to K_{1A}$ with $K_{1A}$ being the $^3P_1$ state, we have larger values for $B\to K_1$ form factors than the previous LCSR results. The ... |
1504.07196 | P. S. Bhupal Dev | P. S. Bhupal Dev and Rabindra N. Mohapatra | A TeV Scale Model for Baryon and Lepton Number Violation and Resonant
Baryogenesis | 7 pages, 6 figures; some typos fixed and references added | Phys. Rev. D 92, 016007 (2015) | 10.1103/PhysRevD.92.016007 | MAN/HEP/2015/07, UMD-PP-015-008 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A simple TeV scale model for baryon and lepton number violation is presented,
where neutrino mass arises via a one-loop radiative seesaw effect and
B-violation obeys $\Delta B=2$ selection rule. The stability of proton is
connected to the neutrino mass generation. Matter-antimatter asymmetry is
generated in this mode... | [
{
"created": "Mon, 27 Apr 2015 18:24:25 GMT",
"version": "v1"
},
{
"created": "Fri, 5 Jun 2015 18:13:49 GMT",
"version": "v2"
}
] | 2015-07-29 | [
[
"Dev",
"P. S. Bhupal",
""
],
[
"Mohapatra",
"Rabindra N.",
""
]
] | A simple TeV scale model for baryon and lepton number violation is presented, where neutrino mass arises via a one-loop radiative seesaw effect and B-violation obeys $\Delta B=2$ selection rule. The stability of proton is connected to the neutrino mass generation. Matter-antimatter asymmetry is generated in this model ... |
hep-ph/0001003 | null | I.I. Bigi | The Lifetimes of Heavy Flavour Hadrons - a Case Study in Quark-Hadron
Duality | 12 pages, LATEX, no figures, 2 tables; slightly extended version of
Invited Talk given at the 3rd International Conference on B Physics and CP
Violation, Taipeh, Taiwan, Dec. 3 - 7, 1999 | null | 10.1142/9789812791870_0027 | UND-HEP-99-BIG 07 | hep-ph | null | The status of heavy quark expansions for charm and beauty lifetime ratios is
reviewed. Taking note of the surprising semiquantitative success of this
description for charm hadrons I interprete the new data on $\tau (D_s)$ and
re-iterate the call for more precise measurements of $\tau (\Xi_c^{0,+})$ and
$\tau (\Omega_... | [
{
"created": "Sat, 1 Jan 2000 21:42:56 GMT",
"version": "v1"
}
] | 2016-11-23 | [
[
"Bigi",
"I. I.",
""
]
] | The status of heavy quark expansions for charm and beauty lifetime ratios is reviewed. Taking note of the surprising semiquantitative success of this description for charm hadrons I interprete the new data on $\tau (D_s)$ and re-iterate the call for more precise measurements of $\tau (\Xi_c^{0,+})$ and $\tau (\Omega_c)... |
hep-ph/0007208 | Pallante | Elisabetta Pallante, Antonio Pich | Final State Interactions in Kaon Decays | 30 pages, 1 eps figure | Nucl.Phys.B592:294-320,2001 | 10.1016/S0550-3213(00)00601-5 | FTUV/00-0717, IFIC/00-30 | hep-ph hep-lat | null | We quantify the important effect of strong final state interactions in the
weak $K\to 2\pi$ amplitudes, using the measured $\pi$-$\pi$ phase shifts with
J=0 and $I=0,2$. The main results of this analysis, with their implications for
$\epsilon'/\epsilon$ and the $\Delta I =1/2$ rule, have been already presented
in a p... | [
{
"created": "Wed, 19 Jul 2000 15:02:53 GMT",
"version": "v1"
}
] | 2014-11-17 | [
[
"Pallante",
"Elisabetta",
""
],
[
"Pich",
"Antonio",
""
]
] | We quantify the important effect of strong final state interactions in the weak $K\to 2\pi$ amplitudes, using the measured $\pi$-$\pi$ phase shifts with J=0 and $I=0,2$. The main results of this analysis, with their implications for $\epsilon'/\epsilon$ and the $\Delta I =1/2$ rule, have been already presented in a pre... |
hep-ph/0009030 | R. D. Peccei | R. D. Peccei | Light Scalars in Cosmology | 10 pages. To appear in the Proceedings of Dark Matter 2000, Santa
Monica, California, February 2000 | null | null | null | hep-ph | null | I discuss here some of the constraints imposed by quantum and gravitational
corrections on two hypothetical excitations, axions and quintessence, which
have important cosmological implications. Although these corrections can be
kept under control, the resulting constraints are not too natural. In
particular, to keep ... | [
{
"created": "Mon, 4 Sep 2000 20:49:17 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Peccei",
"R. D.",
""
]
] | I discuss here some of the constraints imposed by quantum and gravitational corrections on two hypothetical excitations, axions and quintessence, which have important cosmological implications. Although these corrections can be kept under control, the resulting constraints are not too natural. In particular, to keep th... |
hep-ph/9701390 | Timo van Ritbergen | T. van Ritbergen, J.A.M. Vermaseren, S.A. Larin | The four-loop beta-function in Quantum Chromodynamics | 9 pages, Latex, 1 figure, uses axodraw.sty | Phys.Lett.B400:379-384,1997 | 10.1016/S0370-2693(97)00370-5 | UM-TH-97-01, NIKHEF-97-001 | hep-ph | null | We present the analytical calculation of the four-loop QCD beta-function
within the minimal subtraction scheme.
| [
{
"created": "Mon, 27 Jan 1997 19:39:05 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"van Ritbergen",
"T.",
""
],
[
"Vermaseren",
"J. A. M.",
""
],
[
"Larin",
"S. A.",
""
]
] | We present the analytical calculation of the four-loop QCD beta-function within the minimal subtraction scheme. |
1011.3341 | Ulrich Langenfeld | Ulrich Langenfeld | Threshold Improved QCD Corrections for Stop-Antistop production at
Hadron colliders | 19 pages, 6 figures | JHEP 1107:052,2011 | 10.1007/JHEP07(2011)052 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | I present improved predictions for the total hadronic cross section of
stop-antistop production at hadron colliders including
next-to-next-to-leading-order threshold corrections and approximated Coulomb
corrections. The results are based on soft corrections, which are
logarithmically enhanced near threshold. I presen... | [
{
"created": "Mon, 15 Nov 2010 11:04:04 GMT",
"version": "v1"
},
{
"created": "Fri, 8 Jul 2011 09:37:04 GMT",
"version": "v2"
},
{
"created": "Mon, 11 Jul 2011 07:54:53 GMT",
"version": "v3"
}
] | 2011-07-15 | [
[
"Langenfeld",
"Ulrich",
""
]
] | I present improved predictions for the total hadronic cross section of stop-antistop production at hadron colliders including next-to-next-to-leading-order threshold corrections and approximated Coulomb corrections. The results are based on soft corrections, which are logarithmically enhanced near threshold. I present ... |
0812.4267 | Christian Gross | Christian Gross, Arthur Hebecker | A Realistic Unified Gauge Coupling from the Micro-Landscape of Orbifold
GUTs | v3: 27 pages; added comments | Nucl.Phys.B821:354-379,2009 | 10.1016/j.nuclphysb.2009.06.030 | HD-THEP-08-32 | hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider 5-dimensional supersymmetric field theories where supersymmetry
is broken by the Scherk-Schwarz mechanism (or, equivalently, by the F-term VEV
of the radion). In such models, the radion effective potential is calculable in
terms of the 5d gauge coupling, the UV cutoff of the 5d field theory, and the
field... | [
{
"created": "Mon, 22 Dec 2008 18:57:55 GMT",
"version": "v1"
},
{
"created": "Wed, 20 May 2009 21:33:31 GMT",
"version": "v2"
},
{
"created": "Fri, 14 Aug 2009 17:19:19 GMT",
"version": "v3"
}
] | 2010-04-15 | [
[
"Gross",
"Christian",
""
],
[
"Hebecker",
"Arthur",
""
]
] | We consider 5-dimensional supersymmetric field theories where supersymmetry is broken by the Scherk-Schwarz mechanism (or, equivalently, by the F-term VEV of the radion). In such models, the radion effective potential is calculable in terms of the 5d gauge coupling, the UV cutoff of the 5d field theory, and the field c... |
hep-ph/0512120 | Antoni Szczurek | M. Luszczak and A. Szczurek | Gluon transverse momenta and charm quark-antiquark pair production in
$p-\bar p$ collisions at Tevatron | 30 pages, 16 figures | Phys.Rev.D73:054028,2006 | 10.1103/PhysRevD.73.054028 | null | hep-ph | null | We discuss and compare different approaches to include gluon transverse
momenta for heavy quark-antiquark pair production. The correlations in
azimuthal angle and in heavy quark, heavy antiquark transverse momenta are
studied in detail. The results are illustrated with the help of different
unintegrated gluon distrib... | [
{
"created": "Fri, 9 Dec 2005 10:46:34 GMT",
"version": "v1"
}
] | 2011-07-19 | [
[
"Luszczak",
"M.",
""
],
[
"Szczurek",
"A.",
""
]
] | We discuss and compare different approaches to include gluon transverse momenta for heavy quark-antiquark pair production. The correlations in azimuthal angle and in heavy quark, heavy antiquark transverse momenta are studied in detail. The results are illustrated with the help of different unintegrated gluon distribut... |
1205.3036 | Alberto Reis | I. Bediaga, I. I. Bigi, A. Gomes, J. Miranda, J. Otalora, A. C. dos
Reis and A. Veiga | Second Generation of 'Miranda Procedure' for CP Violation in Dalitz
Studies of B (\& D \& \tau) Decays | 29 pages, 7 figures | null | 10.1103/PhysRevD.86.036005 | null | hep-ph hep-ex | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The `Miranda Procedure' proposed for analyzing Dalitz plots for CP
asymmetries in charged B and D decays in a model-independent manner is extended
and refined. The complexity of CKM CP phenomenology through order $\lambda^6$
is needed in searches for New Dynamics (ND). Detailed analyses of three-body
final states oth... | [
{
"created": "Mon, 14 May 2012 14:14:31 GMT",
"version": "v1"
}
] | 2013-05-30 | [
[
"Bediaga",
"I.",
""
],
[
"Bigi",
"I. I.",
""
],
[
"Gomes",
"A.",
""
],
[
"Miranda",
"J.",
""
],
[
"Otalora",
"J.",
""
],
[
"Reis",
"A. C. dos",
""
],
[
"Veiga",
"A.",
""
]
] | The `Miranda Procedure' proposed for analyzing Dalitz plots for CP asymmetries in charged B and D decays in a model-independent manner is extended and refined. The complexity of CKM CP phenomenology through order $\lambda^6$ is needed in searches for New Dynamics (ND). Detailed analyses of three-body final states other... |
hep-ph/9911456 | null | B. Magradze (A. Razmadze Mathematical Institute, Tbilisi Georgia) | Analytic Approach to Perturbative QCD | Latex-file, 19 pages, 2 tables, 51 references, to be published in
Int. J. Mod. Phys.A | Int.J.Mod.Phys. A15 (2000) 2715-2734 | 10.1142/S0217751X00001117 | RMI-99-06 | hep-ph hep-th | null | The two-loop invariant (running) coupling of QCD is written in terms of the
Lambert W function. The analyticity structure of the coupling in the complex
Q^2-plane is established. The corresponding analytic coupling is reconstructed
via a dispersion relation. We also consider some other approximations to the
QCD beta-... | [
{
"created": "Tue, 23 Nov 1999 20:41:23 GMT",
"version": "v1"
}
] | 2016-12-28 | [
[
"Magradze",
"B.",
"",
"A. Razmadze Mathematical Institute, Tbilisi Georgia"
]
] | The two-loop invariant (running) coupling of QCD is written in terms of the Lambert W function. The analyticity structure of the coupling in the complex Q^2-plane is established. The corresponding analytic coupling is reconstructed via a dispersion relation. We also consider some other approximations to the QCD beta-fu... |
hep-ph/9805396 | Hannes Jung | H. Jung (Lund), L. Joensson (Lund), H. Kuester (Lund) | Resolved photon processes in DIS and small x dynamics | 15 pages (Latex), 6 figures (Postscript), replaced version because of
wrong references | null | null | DESY 98-051, LUNFD6/(NFFL-7156) 1998 | hep-ph | null | It has been found that recent results on forward jet production from deep
inelastic scattering can neither be reproduced by models which are based on
leading order alpha_s QCD matrix elements and parton showers nor by
next-to-leading order calculations. The measurement of forward jet cross
sections has been suggested... | [
{
"created": "Wed, 20 May 1998 14:21:43 GMT",
"version": "v1"
},
{
"created": "Fri, 22 May 1998 08:22:26 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Jung",
"H.",
"",
"Lund"
],
[
"Joensson",
"L.",
"",
"Lund"
],
[
"Kuester",
"H.",
"",
"Lund"
]
] | It has been found that recent results on forward jet production from deep inelastic scattering can neither be reproduced by models which are based on leading order alpha_s QCD matrix elements and parton showers nor by next-to-leading order calculations. The measurement of forward jet cross sections has been suggested a... |
1112.2705 | David Morrissey | Yuk Fung Chan, Matthew Low, David E. Morrissey and Andrew P. Spray | LHC Signatures of a Minimal Supersymmetric Hidden Valley | 45 pages, 15 figures; typos corrected but conclusions unchanged | Journal of High Energy Physics, Volume 2012, Number 5 (2012), 155 | 10.1007/JHEP05(2012)155 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the LHC signals of a minimal supersymmetric hidden valley. Our
theory consists of the supersymmetric Standard Model along with a light hidden
U(1)_x gauge multiplet and a pair of hidden chiral superfields that
spontaneously break the new Abelian gauge symmetry near a GeV. The visible and
hidden sectors... | [
{
"created": "Mon, 12 Dec 2011 21:00:03 GMT",
"version": "v1"
},
{
"created": "Wed, 27 Jun 2012 19:23:14 GMT",
"version": "v2"
},
{
"created": "Fri, 31 Jan 2014 00:59:17 GMT",
"version": "v3"
}
] | 2014-02-03 | [
[
"Chan",
"Yuk Fung",
""
],
[
"Low",
"Matthew",
""
],
[
"Morrissey",
"David E.",
""
],
[
"Spray",
"Andrew P.",
""
]
] | We investigate the LHC signals of a minimal supersymmetric hidden valley. Our theory consists of the supersymmetric Standard Model along with a light hidden U(1)_x gauge multiplet and a pair of hidden chiral superfields that spontaneously break the new Abelian gauge symmetry near a GeV. The visible and hidden sectors i... |
1811.03572 | Subhayan Mandal | Karam Chand and Subhayan Mandal | Probing Pseudoscalars with Pulsar Polarisation Data Sets | 16 pages, 3 figures, 5 tables | null | null | null | hep-ph astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recently a data set containing linear and circular polarisation information
of a collection of six hundred pulsars has been released. The operative radio
wavelength for the same was 21 cm. Pulsars radio emission process is modelled
either with synchroton / superconducting self-Compton route or with curvature
radiatio... | [
{
"created": "Thu, 8 Nov 2018 17:52:27 GMT",
"version": "v1"
},
{
"created": "Wed, 30 Oct 2019 03:35:09 GMT",
"version": "v2"
},
{
"created": "Fri, 8 Nov 2019 04:31:47 GMT",
"version": "v3"
}
] | 2019-11-11 | [
[
"Chand",
"Karam",
""
],
[
"Mandal",
"Subhayan",
""
]
] | Recently a data set containing linear and circular polarisation information of a collection of six hundred pulsars has been released. The operative radio wavelength for the same was 21 cm. Pulsars radio emission process is modelled either with synchroton / superconducting self-Compton route or with curvature radiation ... |
hep-ph/9510277 | Junji Hisano | J.Hisano (TIT, ITP) and T.Yanagida (Univ. of Tokyo, TIT) | An N=2 SUSY Gauge Model for Dynamical Breaking of the Grand Unified
SU(5) Symmetry | 7 pages | Mod.Phys.Lett.A10:3097-3102,1995 | 10.1142/S0217732395003240 | NSF-ITP-95-124,TIT-HEP-303,UT-726 | hep-ph | null | We construct an extension of the recently proposed dynamical model for the
breaking of SU(5)$_{\rm GUT}$ gauge symmetry, in which a pair of massless
chiral supermultiplets for Higgs doublets are naturally obtained. We point out
that a model at a specific point in the parameter space of superpotential is
regarded as a... | [
{
"created": "Wed, 11 Oct 1995 21:03:32 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Hisano",
"J.",
"",
"TIT, ITP"
],
[
"Yanagida",
"T.",
"",
"Univ. of Tokyo, TIT"
]
] | We construct an extension of the recently proposed dynamical model for the breaking of SU(5)$_{\rm GUT}$ gauge symmetry, in which a pair of massless chiral supermultiplets for Higgs doublets are naturally obtained. We point out that a model at a specific point in the parameter space of superpotential is regarded as a l... |
1807.08938 | Fernand M Renard | Fernand M. Renard | Z polarization in $e^+e^-\to ZWW $ for testing special interactions of
massive particles | 12 pages, 6 figures | null | null | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show that the $ZWW$ production process may give complementary informations
about scale dependent heavy particle masses and possible final state
interactions as compared to previously studied top quark production processes.
We illustrate the $p_Z$ distribution of the rate of longitudinal $Z_L$
component showing its... | [
{
"created": "Tue, 24 Jul 2018 07:46:56 GMT",
"version": "v1"
}
] | 2018-07-25 | [
[
"Renard",
"Fernand M.",
""
]
] | We show that the $ZWW$ production process may give complementary informations about scale dependent heavy particle masses and possible final state interactions as compared to previously studied top quark production processes. We illustrate the $p_Z$ distribution of the rate of longitudinal $Z_L$ component showing its s... |
hep-ph/0003031 | Kimball A. Milton | K.A. Milton, I.L. Solovtsov, and O.P. Solovtsova | Timelike and spacelike QCD characteristics of the $e^+e^-$ annihilation
process | 11 pages, 4 eps figures, revtex | Eur.Phys.J.C13:497-502,2000 | 10.1007/s100520050712 | OKHEP-99-07 | hep-ph | null | We consider the Adler $D$-function, which is defined in the spacelike region,
and the $e^+e^-$ annihilation ratio smeared, according to the Poggio, Quinn,
and Weinberg method, which is determined for timelike argument. We show that
the method of the nonperturbative $a$-expansion allows one to describe these
Euclidean... | [
{
"created": "Fri, 3 Mar 2000 23:23:26 GMT",
"version": "v1"
}
] | 2011-09-13 | [
[
"Milton",
"K. A.",
""
],
[
"Solovtsov",
"I. L.",
""
],
[
"Solovtsova",
"O. P.",
""
]
] | We consider the Adler $D$-function, which is defined in the spacelike region, and the $e^+e^-$ annihilation ratio smeared, according to the Poggio, Quinn, and Weinberg method, which is determined for timelike argument. We show that the method of the nonperturbative $a$-expansion allows one to describe these Euclidean a... |
hep-ph/0507134 | Yuri V. Kovchegov | Yuri V. Kovchegov | Thoughts on Non-Perturbative Thermalization and Jet Quenching in Heavy
Ion Collisions | 26 pages, no figures | Nucl.Phys. A764 (2006) 476-497 | 10.1016/j.nuclphysa.2005.09.010 | null | hep-ph nucl-th | null | We start by presenting physical arguments for the impossibility of
perturbative thermalization leading to (non-viscous) Bjorken hydrodynamic
description of heavy ion collisions. These arguments are complimentary to our
more formal argument presented in [hep-ph/0503038]. We argue that the success
of hydrodynamic model... | [
{
"created": "Mon, 11 Jul 2005 22:25:29 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Kovchegov",
"Yuri V.",
""
]
] | We start by presenting physical arguments for the impossibility of perturbative thermalization leading to (non-viscous) Bjorken hydrodynamic description of heavy ion collisions. These arguments are complimentary to our more formal argument presented in [hep-ph/0503038]. We argue that the success of hydrodynamic models ... |
2309.10043 | Jordan Koechler | Jordan Koechler | X-rays constraints on sub-GeV Dark Matter | Contribution to the 34th Rencontres de Blois on Particle Physics and
Cosmology (Blois 2023), the XVIII International Conference on Topics in
Astroparticle and Underground Physics (TAUP 2023) and TeV Particle
Astrophysics (TeVPA) 2023 | null | 10.22323/1.441.0044 | null | hep-ph astro-ph.CO astro-ph.HE | http://creativecommons.org/licenses/by-nc-nd/4.0/ | We present updated constraints on 'light' Dark Matter (DM) particles with
masses between 1 MeV and 5 GeV. In this range, we can expect DM-produced
$e^\pm$ pairs to up-scatter low-energy ambient photons in the Milky Way via the
Inverse Compton process, and produce a flux of X-rays that can be probed by a
range of spac... | [
{
"created": "Mon, 18 Sep 2023 18:00:18 GMT",
"version": "v1"
},
{
"created": "Tue, 16 Jan 2024 08:51:06 GMT",
"version": "v2"
}
] | 2024-01-17 | [
[
"Koechler",
"Jordan",
""
]
] | We present updated constraints on 'light' Dark Matter (DM) particles with masses between 1 MeV and 5 GeV. In this range, we can expect DM-produced $e^\pm$ pairs to up-scatter low-energy ambient photons in the Milky Way via the Inverse Compton process, and produce a flux of X-rays that can be probed by a range of space ... |
2308.01347 | Aidan Reilly | Aidan Reilly and Natalia Toro | Ultraviolet Running Constraints on Low Mass Dark Sectors | 30 pages, 12 figures, 2 tables; added references in section 3; minor
revisions | null | null | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We analyze the UV breakdown of Sub-GeV dark matter models that live in a new,
dark U(1) sector. Many of these models include a scalar field, which is either
the dark matter itself or a dark Higgs field that generates mass terms for the
dark matter particle via spontaneous symmetry breaking. A quartic self coupling
of... | [
{
"created": "Wed, 2 Aug 2023 18:00:04 GMT",
"version": "v1"
},
{
"created": "Tue, 5 Sep 2023 02:56:28 GMT",
"version": "v2"
},
{
"created": "Tue, 14 Nov 2023 23:28:32 GMT",
"version": "v3"
}
] | 2023-11-16 | [
[
"Reilly",
"Aidan",
""
],
[
"Toro",
"Natalia",
""
]
] | We analyze the UV breakdown of Sub-GeV dark matter models that live in a new, dark U(1) sector. Many of these models include a scalar field, which is either the dark matter itself or a dark Higgs field that generates mass terms for the dark matter particle via spontaneous symmetry breaking. A quartic self coupling of t... |
1609.03895 | Vo Van Vien | V. V. Vien and H. N. Long | Lepton mass and mixing in a simple extension of the Standard Model based
on T7 flavor symmetry | 23 pages, 6 figures | Physics of Atomic Nuclei, Vol. 82, No 2, (2019), pp. 168--182 | 10.1134/S1063778819020133 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A simple Standard Model Extension based on $T_7$ flavor symmetry which
accommodates lepton mass and mixing with non-zero $\theta_{13}$ and CP
violation phase is proposed. At the tree- level, the realistic lepton mass and
mixing pattern is derived through the spontaneous symmetry breaking by just one
vacuum expectatio... | [
{
"created": "Tue, 13 Sep 2016 15:25:13 GMT",
"version": "v1"
}
] | 2019-05-01 | [
[
"Vien",
"V. V.",
""
],
[
"Long",
"H. N.",
""
]
] | A simple Standard Model Extension based on $T_7$ flavor symmetry which accommodates lepton mass and mixing with non-zero $\theta_{13}$ and CP violation phase is proposed. At the tree- level, the realistic lepton mass and mixing pattern is derived through the spontaneous symmetry breaking by just one vacuum expectation ... |
1107.4473 | Marcin Badziak | Marcin Badziak | Yukawa unification in SUSY SO(10) for mu<0 consistent with muon g-2 and
b->s gamma | Talk given at 46th Rencontres de Moriond on Electroweak Interactions
and Unified Theories, 13-20 March 2011 | null | null | Cavendish-HEP-11/11, DAMTP-2011-37 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is shown that top-bottom-tau Yukawa unification for \mu<0 can be
consistent with (g-2)_\mu and b->s \gamma. This happens for non-universal
gaugino masses which are assumed to be generated by the F-term vev in a
54-dimensional representation of SO(10). The requirement of (g-2)_\mu and b->s
\gamma being within 2\sig... | [
{
"created": "Fri, 22 Jul 2011 10:36:04 GMT",
"version": "v1"
}
] | 2011-07-25 | [
[
"Badziak",
"Marcin",
""
]
] | It is shown that top-bottom-tau Yukawa unification for \mu<0 can be consistent with (g-2)_\mu and b->s \gamma. This happens for non-universal gaugino masses which are assumed to be generated by the F-term vev in a 54-dimensional representation of SO(10). The requirement of (g-2)_\mu and b->s \gamma being within 2\sigma... |
1502.04589 | Nan Su | Nan Su | Recent progress in hard-thermal-loop QCD thermodynamics and collective
excitations | 18 pages, 7 figures; Invited review for International Journal of
Modern Physics A; v2, references updated and typos corrected, published
version | Int. J. Mod. Phys. A, Vol. 30, 1530025 (2015) | 10.1142/S0217751X15300252 | BI-TP 2015/08 | hep-ph hep-lat hep-th nucl-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | I review recent developments in QCD thermodynamics and collective excitations
from the hard-thermal-loop effective theory. I begin by motivating the
discussion with open questions from heavy-ion collisions. I then discuss a
finite-temperature and -density calculation of QCD thermodynamics at NNLO from
the hard-therma... | [
{
"created": "Mon, 16 Feb 2015 16:02:53 GMT",
"version": "v1"
},
{
"created": "Fri, 27 Mar 2015 21:28:43 GMT",
"version": "v2"
}
] | 2015-03-31 | [
[
"Su",
"Nan",
""
]
] | I review recent developments in QCD thermodynamics and collective excitations from the hard-thermal-loop effective theory. I begin by motivating the discussion with open questions from heavy-ion collisions. I then discuss a finite-temperature and -density calculation of QCD thermodynamics at NNLO from the hard-thermal-... |
hep-ph/0205129 | Giacomo Cacciapaglia | G.Cacciapaglia (Scuola Normale Superiore & INFN, Pisa) | Higgs boson decay rate into gluons in a 5 dimensional calculable model | 2 pp, contribution to the XXXVIIth Rencontres de Moriond,
"Electroweak interactions and unified theories", Les Arcs, France, 9-16 Mar
2002 | null | null | null | hep-ph | null | In an extension of the Standard Model with one compact extra dimension and
N=1 supersymmetry, we compute the Higgs boson decay rate into two gluons,
relevant to the Higgs production in hadronic collisions. We find that at one
loop the decay width is significantly suppressed with respect to the SM. In
particular, for ... | [
{
"created": "Mon, 13 May 2002 17:08:49 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Cacciapaglia",
"G.",
"",
"Scuola Normale Superiore & INFN, Pisa"
]
] | In an extension of the Standard Model with one compact extra dimension and N=1 supersymmetry, we compute the Higgs boson decay rate into two gluons, relevant to the Higgs production in hadronic collisions. We find that at one loop the decay width is significantly suppressed with respect to the SM. In particular, for a ... |
hep-ph/0501003 | Anisovich Vladimir V. | V.V. Anisovich, M.A. Matveev, J. Nyiri, A.V. Sarantsev | Determination of the quarkonium--gluonium content of the isoscalar
tensor resonances $f_2(1920)$, $f_2(2020)$, $f_2(2240)$, $f_2(2300)$ and of
the broad state $f_2(2000)$ based on decay couplings to
$\pi^0\pi^0,\eta\eta,\eta\eta'$ | 9 pages, 4 figures | null | null | null | hep-ph | null | In the reactions $p\bar p\to\pi^0\pi^0,\eta\eta,\eta\eta'$ there are four
relatively narrow resonances $f_2(1920)$, $f_2(2020)$, $f_2(2240)$,
$f_2(2300)$, and a broad one $f_2(2000)$ in the mass region 1990--2400 MeV. In
the framework of quark combinatorics we carry out an analysis of the decay
constants for all five... | [
{
"created": "Sat, 1 Jan 2005 14:06:38 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Anisovich",
"V. V.",
""
],
[
"Matveev",
"M. A.",
""
],
[
"Nyiri",
"J.",
""
],
[
"Sarantsev",
"A. V.",
""
]
] | In the reactions $p\bar p\to\pi^0\pi^0,\eta\eta,\eta\eta'$ there are four relatively narrow resonances $f_2(1920)$, $f_2(2020)$, $f_2(2240)$, $f_2(2300)$, and a broad one $f_2(2000)$ in the mass region 1990--2400 MeV. In the framework of quark combinatorics we carry out an analysis of the decay constants for all five r... |
1702.01099 | Danny Marfatia | Alakabha Datta, Jiajun Liao, Danny Marfatia | A light $Z^\prime$ for the $R_K$ puzzle and nonstandard neutrino
interactions | 5 pages, 2 figures. Typos corrected | Phys. Lett. B 768 : 265-269 (2017) | 10.1016/j.physletb.2017.02.058 | null | hep-ph hep-ex | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show that the $R_K$ puzzle in LHCb data and the discrepancy in the
anomalous magnetic moment of the muon can be simultaneously explained if a 10
MeV mass $Z^\prime$ boson couples to the muon but not the electron, and that
clear evidence of the nonstandard matter interactions of neutrinos induced by
this coupling m... | [
{
"created": "Fri, 3 Feb 2017 18:08:18 GMT",
"version": "v1"
},
{
"created": "Sat, 25 Feb 2017 17:57:33 GMT",
"version": "v2"
},
{
"created": "Sun, 23 Apr 2017 19:16:06 GMT",
"version": "v3"
}
] | 2017-04-25 | [
[
"Datta",
"Alakabha",
""
],
[
"Liao",
"Jiajun",
""
],
[
"Marfatia",
"Danny",
""
]
] | We show that the $R_K$ puzzle in LHCb data and the discrepancy in the anomalous magnetic moment of the muon can be simultaneously explained if a 10 MeV mass $Z^\prime$ boson couples to the muon but not the electron, and that clear evidence of the nonstandard matter interactions of neutrinos induced by this coupling may... |
2312.14679 | Andreas Ringwald | Andreas Ringwald | Prospects to scrutinise or smash SM*A*S*H | 13 pages, 9 pages, contribution to the proceedings of the 1st General
Meeting and 1st Training School of the COST Action COSMIC WISPers
(COSMICWISPers) | null | null | DESY-23-225 | hep-ph astro-ph.CO hep-ex | http://creativecommons.org/licenses/by/4.0/ | SM*A*S*H is an extension of the Standard Model of particle physics which has
just the minimal number of fields in order to solve six puzzles of particle
physics and cosmology in one smash: vacuum stability, inflation, baryon
asymmetry, neutrino masses, strong CP, and dark matter. The parameters of
SM*A*S*H are constr... | [
{
"created": "Fri, 22 Dec 2023 13:30:42 GMT",
"version": "v1"
}
] | 2023-12-25 | [
[
"Ringwald",
"Andreas",
""
]
] | SM*A*S*H is an extension of the Standard Model of particle physics which has just the minimal number of fields in order to solve six puzzles of particle physics and cosmology in one smash: vacuum stability, inflation, baryon asymmetry, neutrino masses, strong CP, and dark matter. The parameters of SM*A*S*H are constrai... |
0912.4955 | Laszlo Jenkovszky | R. Fiore, L. Jenkovszky, E. Kuraev, A. Lengyel, Z. Tarics | Predictions for high-energy pp and \bar pp scattering from a finite sum
of gluon ladders | 15 pages, 2 figures | Phys.Rev.D81:056001,2010 | 10.1103/PhysRevD.81.056001 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | An eikonalized elastic proton-proton and proton-antiproton scattering
amplitude F(s,t), calculated from QCD as a finite sum of gluon ladders, is
compared with the existing experimental data on the total cross section and the
ratio \rho(s,0)=Re F(s,0)/Im F(s,0) of the real part to the imaginary part of
the forward amp... | [
{
"created": "Fri, 25 Dec 2009 09:16:30 GMT",
"version": "v1"
}
] | 2010-04-06 | [
[
"Fiore",
"R.",
""
],
[
"Jenkovszky",
"L.",
""
],
[
"Kuraev",
"E.",
""
],
[
"Lengyel",
"A.",
""
],
[
"Tarics",
"Z.",
""
]
] | An eikonalized elastic proton-proton and proton-antiproton scattering amplitude F(s,t), calculated from QCD as a finite sum of gluon ladders, is compared with the existing experimental data on the total cross section and the ratio \rho(s,0)=Re F(s,0)/Im F(s,0) of the real part to the imaginary part of the forward ampli... |
1112.0682 | Emiliano Molinaro | Emiliano Molinaro | Indirect Signatures of Type I See-Saw Scenarios | 4 pages, 2 figures. Contributions to the Proceedings of the 12th
International Conference on Topics in Astroparticle and Underground Physics
(TAUP 2011), Munich, Germany, 5-9 September 2011 | null | 10.1088/1742-6596/375/1/042002 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the low energy constraints that can be applied to type I see-saw
extensions of the Standard Model in which the right-handed neutrinos are taken
at the electroweak scale. In the reported scenarios, the flavour structure of
the charged current and neutral current weak interactions of the Standard Model
lept... | [
{
"created": "Sat, 3 Dec 2011 18:55:02 GMT",
"version": "v1"
}
] | 2015-06-03 | [
[
"Molinaro",
"Emiliano",
""
]
] | We consider the low energy constraints that can be applied to type I see-saw extensions of the Standard Model in which the right-handed neutrinos are taken at the electroweak scale. In the reported scenarios, the flavour structure of the charged current and neutral current weak interactions of the Standard Model lepton... |
2308.02240 | Alexey Drutskoy | E. Antonov, A. Drutskoy, M. Dubinin | A possible search for Majorana neutrinos at future lepton colliders | 8 pages, 5 figures, 3 tables, published in JETP Letters | null | 10.1134/S0021364023602518 | null | hep-ph hep-ex | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss the process $\ell^+\ell^- \to N W^{\pm} \ell^{\mp}$, where $N$ is
a heavy Majorana neutrino and $\ell = e, \mu$. Large cross sections are
expected for these processes at high center-of-mass energies, which can be
reached at future lepton-lepton colliders. The Monte Carlo simulation of the
studied processes... | [
{
"created": "Fri, 4 Aug 2023 10:39:31 GMT",
"version": "v1"
},
{
"created": "Thu, 28 Sep 2023 15:49:52 GMT",
"version": "v2"
}
] | 2023-09-29 | [
[
"Antonov",
"E.",
""
],
[
"Drutskoy",
"A.",
""
],
[
"Dubinin",
"M.",
""
]
] | We discuss the process $\ell^+\ell^- \to N W^{\pm} \ell^{\mp}$, where $N$ is a heavy Majorana neutrino and $\ell = e, \mu$. Large cross sections are expected for these processes at high center-of-mass energies, which can be reached at future lepton-lepton colliders. The Monte Carlo simulation of the studied processes i... |
2401.12571 | Zhi-Gang Wang | Zhi-Gang Wang | The $B_c$ meson and its scalar cousin with the QCD sum rules | 15 pages, 10 figures | Chin. Phys. C48 (2024) 103104 | 10.1088/1674-1137/ad5a71 | null | hep-ph | http://creativecommons.org/licenses/by/4.0/ | In the present work, we use optical theorem to calculate the next-to-leading
order corrections to the QCD spectral densities directly in the QCD sum rules
for the pseudoscalar and scalar $B_c$ mesons. We take the experimental data as
guides to perform updated analysis, and obtain the masses and decay constants,
espec... | [
{
"created": "Tue, 23 Jan 2024 09:03:54 GMT",
"version": "v1"
},
{
"created": "Sat, 20 Apr 2024 09:09:00 GMT",
"version": "v2"
},
{
"created": "Thu, 6 Jun 2024 13:04:34 GMT",
"version": "v3"
}
] | 2024-08-13 | [
[
"Wang",
"Zhi-Gang",
""
]
] | In the present work, we use optical theorem to calculate the next-to-leading order corrections to the QCD spectral densities directly in the QCD sum rules for the pseudoscalar and scalar $B_c$ mesons. We take the experimental data as guides to perform updated analysis, and obtain the masses and decay constants, especia... |
2102.06159 | Daniel Adamiak | Daniel Adamiak, Yuri V. Kovchegov, W. Melnitchouk, Daniel Pitonyak,
Nobuo Sato, Matthew D. Sievert | First analysis of world polarized DIS data with small-$x$ helicity
evolution | 7 pages, 5 figures; v2: Discussion extended, typos corrected, data
set expanded, figure added. To appear in Phys. Rev. D | Phys. Rev. D 104, 031501 (2021) | 10.1103/PhysRevD.104.L031501 | JLAB-THY-21-3318 | hep-ph hep-ex nucl-ex nucl-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a Monte Carlo based analysis of the combined world data on
polarized lepton-nucleon deep-inelastic scattering at small Bjorken $x$ within
the polarized quark dipole formalism. We show for the first time that
double-spin asymmetries at $x<0.1$ can be successfully described using only
small-$x$ evolution der... | [
{
"created": "Thu, 11 Feb 2021 18:04:54 GMT",
"version": "v1"
},
{
"created": "Tue, 27 Jul 2021 21:37:52 GMT",
"version": "v2"
}
] | 2021-08-11 | [
[
"Adamiak",
"Daniel",
""
],
[
"Kovchegov",
"Yuri V.",
""
],
[
"Melnitchouk",
"W.",
""
],
[
"Pitonyak",
"Daniel",
""
],
[
"Sato",
"Nobuo",
""
],
[
"Sievert",
"Matthew D.",
""
]
] | We present a Monte Carlo based analysis of the combined world data on polarized lepton-nucleon deep-inelastic scattering at small Bjorken $x$ within the polarized quark dipole formalism. We show for the first time that double-spin asymmetries at $x<0.1$ can be successfully described using only small-$x$ evolution deriv... |
1203.5557 | John P. Ralston | John P. Ralston | Quantum Theory without Planck's Constant | 42 pages, 9 figures | null | null | null | hep-ph physics.hist-ph quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Planck's constant was introduced as a fundamental scale in the early history
of quantum mechanics. We find a modern approach where Planck's constant is
absent: it is unobservable except as a constant of human convention. Despite
long reference to experiment, review shows that Planck's constant cannot be
obtained from... | [
{
"created": "Sun, 25 Mar 2012 23:58:06 GMT",
"version": "v1"
}
] | 2012-03-27 | [
[
"Ralston",
"John P.",
""
]
] | Planck's constant was introduced as a fundamental scale in the early history of quantum mechanics. We find a modern approach where Planck's constant is absent: it is unobservable except as a constant of human convention. Despite long reference to experiment, review shows that Planck's constant cannot be obtained from t... |
1606.09576 | Ma{\l}gorzata Janik | Ma{\l}gorzata Anna Janik and {\L}ukasz Kamil Graczykowski and Adam
Kisiel | Influence of quantum conservation laws on particle production in hadron
collisions | Quark Matter 2015 conference | null | 10.1016/j.nuclphysa.2016.02.018 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Conservation laws strongly influence production of particles in high-energy
particle collisions. Effects connected to these mechanisms were studied in
details using correlation techniques in \ee\ collisions. At the time, models
were tuned to correctly reproduce the measurements. Similar studies for
hadron-hadron coll... | [
{
"created": "Fri, 22 Jan 2016 14:20:38 GMT",
"version": "v1"
}
] | 2016-11-23 | [
[
"Janik",
"Małgorzata Anna",
""
],
[
"Graczykowski",
"Łukasz Kamil",
""
],
[
"Kisiel",
"Adam",
""
]
] | Conservation laws strongly influence production of particles in high-energy particle collisions. Effects connected to these mechanisms were studied in details using correlation techniques in \ee\ collisions. At the time, models were tuned to correctly reproduce the measurements. Similar studies for hadron-hadron collis... |
2104.05685 | Van Que Tran | Mingxuan Du, Jinhan Liang, Zuowei Liu, Van Que Tran | A vector leptoquark interpretation of the muon $g-2$ and $B$ anomalies | 6 pages, 3 figures | null | null | null | hep-ph | http://creativecommons.org/licenses/by/4.0/ | We show that a single vector leptoquark can explain both the muon $g-2$
anomaly recently measured by the Muon g-2 experiment at Fermilab, and the
various $B$ decay anomalies, including the $R_{D^{(*)}}$ and $R_{K^{(*)}}$
anomalies which have been recently reported by the LHCb experiment. In order to
provide sizeable ... | [
{
"created": "Mon, 12 Apr 2021 17:48:53 GMT",
"version": "v1"
}
] | 2021-04-13 | [
[
"Du",
"Mingxuan",
""
],
[
"Liang",
"Jinhan",
""
],
[
"Liu",
"Zuowei",
""
],
[
"Tran",
"Van Que",
""
]
] | We show that a single vector leptoquark can explain both the muon $g-2$ anomaly recently measured by the Muon g-2 experiment at Fermilab, and the various $B$ decay anomalies, including the $R_{D^{(*)}}$ and $R_{K^{(*)}}$ anomalies which have been recently reported by the LHCb experiment. In order to provide sizeable po... |
0801.0360 | Hank Miller | Justin M. Conroy, H. G. Miller | Color Superconductivity and Tsallis Statistics | null | Phys.Rev.D78:054010,2008 | 10.1103/PhysRevD.78.054010 | null | hep-ph cond-mat.supr-con nucl-th | null | The generalized non-extensive statistics proposed by Tsallis have been
successfully utilized in many systems where long range interactions are
present. For high density quark matter an attractive long range interaction
arising from single gluon exchange suggests the formation of a diquark
condensate. We study the eff... | [
{
"created": "Wed, 2 Jan 2008 09:27:14 GMT",
"version": "v1"
}
] | 2009-01-09 | [
[
"Conroy",
"Justin M.",
""
],
[
"Miller",
"H. G.",
""
]
] | The generalized non-extensive statistics proposed by Tsallis have been successfully utilized in many systems where long range interactions are present. For high density quark matter an attractive long range interaction arising from single gluon exchange suggests the formation of a diquark condensate. We study the effec... |
1109.1508 | Julian Heeck | Julian Heeck, Werner Rodejohann | Kinetic and mass mixing with three abelian groups | 8 pages, references added, matches published version | Phys.Lett.B705:369-374,2011 | 10.1016/j.physletb.2011.10.050 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present the possible mixing effects associated with the low-energy limit
of a Standard-Model extension by two abelian gauge groups U(1)_1 x U(1)_2. We
derive general formulae and approximate expressions that connect the gauge
eigenstates to the mass eigenstates. Applications using the well-studied groups
U(1)_B, U... | [
{
"created": "Wed, 7 Sep 2011 16:37:33 GMT",
"version": "v1"
},
{
"created": "Sat, 29 Oct 2011 07:36:07 GMT",
"version": "v2"
}
] | 2011-11-01 | [
[
"Heeck",
"Julian",
""
],
[
"Rodejohann",
"Werner",
""
]
] | We present the possible mixing effects associated with the low-energy limit of a Standard-Model extension by two abelian gauge groups U(1)_1 x U(1)_2. We derive general formulae and approximate expressions that connect the gauge eigenstates to the mass eigenstates. Applications using the well-studied groups U(1)_B, U(1... |
2404.18996 | Subrata Samanta | Debtosh Chowdhury, Poulami Mondal, Subrata Samanta | Next-to-Leading Order Unitarity Fits in the Extended Georgi-Machacek
Model | 58 pages, 13 figures. Comments are welcome | null | null | null | hep-ph hep-ex | http://creativecommons.org/licenses/by/4.0/ | Minimal triplet scalar extension of the Standard Model demanding custodial
symmetry gives rise to the extended Georgi-Machacek (eGM) model. We compute
one-loop corrections to all $2 \rightarrow 2$ bosonic scattering amplitudes in
the eGM model, and place next-to-leading order (NLO) unitarity bounds on the
quartic cou... | [
{
"created": "Mon, 29 Apr 2024 18:00:01 GMT",
"version": "v1"
}
] | 2024-05-01 | [
[
"Chowdhury",
"Debtosh",
""
],
[
"Mondal",
"Poulami",
""
],
[
"Samanta",
"Subrata",
""
]
] | Minimal triplet scalar extension of the Standard Model demanding custodial symmetry gives rise to the extended Georgi-Machacek (eGM) model. We compute one-loop corrections to all $2 \rightarrow 2$ bosonic scattering amplitudes in the eGM model, and place next-to-leading order (NLO) unitarity bounds on the quartic coupl... |
0709.4259 | Jing Shao | Gordon L. Kane, Piyush Kumar and Jing Shao | Unravelling Strings at the LHC | 34 pages, 16 figures | Phys.Rev.D77:116005,2008 | 10.1103/PhysRevD.77.116005 | null | hep-ph hep-ex hep-th | null | We construct LHC signature footprints for four semi-realistic string/$M$
theory vacua with an MSSM visible sector. We find that they all give rise to
limited regions in LHC signature space, and are qualitatively different from
each other for understandable reasons. We also propose a technique in which
correlations of... | [
{
"created": "Wed, 26 Sep 2007 20:34:09 GMT",
"version": "v1"
}
] | 2008-06-18 | [
[
"Kane",
"Gordon L.",
""
],
[
"Kumar",
"Piyush",
""
],
[
"Shao",
"Jing",
""
]
] | We construct LHC signature footprints for four semi-realistic string/$M$ theory vacua with an MSSM visible sector. We find that they all give rise to limited regions in LHC signature space, and are qualitatively different from each other for understandable reasons. We also propose a technique in which correlations of L... |
hep-ph/0103320 | Shaaban Khalil | S. Abel, S. Khalil, and O. Lebedev | EDM Constraints in Supersymmetric Theories | 34 pages, 18 figures, to appear in Nucl. Phys. B | Nucl.Phys.B606:151-182,2001 | 10.1016/S0550-3213(01)00233-4 | SUSX-TH/01-016 | hep-ph | null | We systematically analyze constraints on supersymmetric theories imposed by
the experimental bounds on the electron, neutron, and mercury electric dipole
moments. We critically reappraise the known mechanisms to suppress the EDMs and
conclude that only the scenarios with approximate CP-symmetry or
flavour-off-diagona... | [
{
"created": "Thu, 29 Mar 2001 14:34:15 GMT",
"version": "v1"
},
{
"created": "Mon, 14 May 2001 11:36:17 GMT",
"version": "v2"
}
] | 2010-05-28 | [
[
"Abel",
"S.",
""
],
[
"Khalil",
"S.",
""
],
[
"Lebedev",
"O.",
""
]
] | We systematically analyze constraints on supersymmetric theories imposed by the experimental bounds on the electron, neutron, and mercury electric dipole moments. We critically reappraise the known mechanisms to suppress the EDMs and conclude that only the scenarios with approximate CP-symmetry or flavour-off-diagonal ... |
hep-ph/9812420 | Michel C. Vetterli | Michel C. Vetterli (TRIUMF) | The Spin Structure of the Nucleon (Lectures at the 13th Lake Louise
Winter Institute) | 51 pages, 24 figures, Latex, psfigure.sty, rotating.sty, sprocl.sty | null | null | null | hep-ph | null | This paper gives a pedagogical introduction to our knowledge of the spin
structure of the nucleon. In particular, polarised deep inelastic lepton
scattering is presented as a tool to study how the nucleon's constituents
combine to generate its spin. The importance of semi-inclusive measurements is
discussed and a win... | [
{
"created": "Thu, 17 Dec 1998 20:24:09 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Vetterli",
"Michel C.",
"",
"TRIUMF"
]
] | This paper gives a pedagogical introduction to our knowledge of the spin structure of the nucleon. In particular, polarised deep inelastic lepton scattering is presented as a tool to study how the nucleon's constituents combine to generate its spin. The importance of semi-inclusive measurements is discussed and a windo... |
0803.4176 | Carl Albright | Carl H. Albright | Differentiating Neutrino Models on the Basis of $\theta_{13}$ and Lepton
Flavor Violation | 10 pages, 7 figures, to appear in Proceedings of the International
Workshop on Grand Unified Theories: Current Status and Future Prospects
(GUT07), December 17-19, 2007, Kusatsu, Japan | AIP Conf.Proc.1015:42-51,2008 | 10.1063/1.2939060 | FERMILAB-CONF-08-050-T | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show how models of neutrino masses and mixings can be differentiated on
the basis of their predictions for $\theta_{13}$ and lepton flavor violation in
radiative charged lepton decays and $\mu - e$ conversion. We illustrate the
lepton flavor violation results for five predictive SO(10) SUSY GUT models and
point ou... | [
{
"created": "Fri, 28 Mar 2008 19:05:08 GMT",
"version": "v1"
}
] | 2009-03-09 | [
[
"Albright",
"Carl H.",
""
]
] | We show how models of neutrino masses and mixings can be differentiated on the basis of their predictions for $\theta_{13}$ and lepton flavor violation in radiative charged lepton decays and $\mu - e$ conversion. We illustrate the lepton flavor violation results for five predictive SO(10) SUSY GUT models and point out ... |
1804.10017 | Stefano Frixione | R. Frederix, S. Frixione, V. Hirschi, D. Pagani, H.-S. Shao, M. Zaro | The automation of next-to-leading order electroweak calculations | 121 pages, 16 figures; this version is identical to the JHEP one,
including the erratum to the latter | null | 10.1007/JHEP07(2018)185 | Nikhef/2018-015, TUM-HEP-1138/18 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present the key features relevant to the automated computation of all the
leading- and next-to-leading order contributions to short-distance cross
sections in a mixed-coupling expansion, with special emphasis on the first
subleading NLO term in the QCD+EW scenario, commonly referred to as NLO EW
corrections. We di... | [
{
"created": "Thu, 26 Apr 2018 12:31:08 GMT",
"version": "v1"
},
{
"created": "Thu, 21 Oct 2021 12:48:15 GMT",
"version": "v2"
}
] | 2021-10-22 | [
[
"Frederix",
"R.",
""
],
[
"Frixione",
"S.",
""
],
[
"Hirschi",
"V.",
""
],
[
"Pagani",
"D.",
""
],
[
"Shao",
"H. -S.",
""
],
[
"Zaro",
"M.",
""
]
] | We present the key features relevant to the automated computation of all the leading- and next-to-leading order contributions to short-distance cross sections in a mixed-coupling expansion, with special emphasis on the first subleading NLO term in the QCD+EW scenario, commonly referred to as NLO EW corrections. We disc... |
hep-ph/9908500 | Thomas Gehrmann | T.Gehrmann (TTP, Karlsruhe) | Summary: Spin Physics | LaTeX, 13 pages, Summary talk presented at the Workshop ``Polarized
Protons at High Energies - Accelerator Challenges and Physics
Opportunities'', DESY Hamburg, 17-20 May, 1999; The complete paper, including
figures, is also available via anonymous ftp at
ftp://ttpux2.physik.uni-karlsruhe.de/ttp99/ttp99-36/ or ... | null | null | TTP99-36 | hep-ph | null | The spin physics parallel sessions at this workshop made a critical review of
the physics potential of future experiments on polarized nucleons, with an
emphasis on the potential impact of polarized electron-proton collisions at
HERA. A summary of the results and discussions from these sessions is presented
in this a... | [
{
"created": "Mon, 30 Aug 1999 09:06:22 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Gehrmann",
"T.",
"",
"TTP, Karlsruhe"
]
] | The spin physics parallel sessions at this workshop made a critical review of the physics potential of future experiments on polarized nucleons, with an emphasis on the potential impact of polarized electron-proton collisions at HERA. A summary of the results and discussions from these sessions is presented in this art... |
hep-ph/0408144 | Kim Maltman | Kim Maltman | Quark Model Perspectives on Pentaquark Exotics | 12 pages, Invited Talk, Workshop on the Physics of Excited Nucleons
(NSTAR 2004), Grenoble, France, March 24-27, 2004 | null | 10.1142/9789812702272_0005 | YU-PP-I/E-KM-04-1 | hep-ph | null | Expectations and predictions for pentaquark exotics based on the quark model
perspective are presented. Recent quark model scenarios, and calculations
performed in different realizations of the quark model approach, up to the end
of March 2004, are also reviewed and discussed.
| [
{
"created": "Wed, 11 Aug 2004 22:03:31 GMT",
"version": "v1"
}
] | 2017-08-23 | [
[
"Maltman",
"Kim",
""
]
] | Expectations and predictions for pentaquark exotics based on the quark model perspective are presented. Recent quark model scenarios, and calculations performed in different realizations of the quark model approach, up to the end of March 2004, are also reviewed and discussed. |
1109.4846 | Yue-Liang Wu | Da Huang, Yong Tang, Yue-Liang Wu | Note on Higgs Decay into Two Photons $H\to \gamma\gamma$ | 13 pages, 2 figures, references added, advantage of loop
regularization method with the concept of irreduciable loop integral is
emphasized, published version | Commun.Theor.Phys. 57 (2012) 427-434 | 10.1088/0253-6102/57/3/14 | null | hep-ph hep-ex | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Higgs decay $H\to \gamma\gamma$ duo to the virtual $W$-loop effect is
revisited in the unitary gauge by using the symmetry-preserving and
divergent-behavior-preserving loop regularization method, which is realized in
the four dimensional space-time without changing original theory. Though the
one-loop amplitude o... | [
{
"created": "Thu, 22 Sep 2011 15:14:17 GMT",
"version": "v1"
},
{
"created": "Wed, 18 Jan 2012 12:33:21 GMT",
"version": "v2"
}
] | 2012-04-12 | [
[
"Huang",
"Da",
""
],
[
"Tang",
"Yong",
""
],
[
"Wu",
"Yue-Liang",
""
]
] | The Higgs decay $H\to \gamma\gamma$ duo to the virtual $W$-loop effect is revisited in the unitary gauge by using the symmetry-preserving and divergent-behavior-preserving loop regularization method, which is realized in the four dimensional space-time without changing original theory. Though the one-loop amplitude of ... |
1710.08086 | Riley Patrick | Riley Patrick, Pankaj Sharma and Anthony G. Williams | Triple top signal as a probe of charged Higgs in a 2HDM | 5 pages, 5 figures, 2 tables | null | 10.1016/j.physletb.2018.03.033 | ADP-17-34/T1040 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Within the framework of the type-II Two Higgs Doublet Model (2HDM-II) we
study the production of three top quarks at the Large Hadron Collider (LHC). In
the Standard Model the production cross section of three tops is low ($\approx
3$fb), while it is expected to be significant in the 2HDM-II for reasonable
choices of... | [
{
"created": "Mon, 23 Oct 2017 04:58:22 GMT",
"version": "v1"
}
] | 2018-03-16 | [
[
"Patrick",
"Riley",
""
],
[
"Sharma",
"Pankaj",
""
],
[
"Williams",
"Anthony G.",
""
]
] | Within the framework of the type-II Two Higgs Doublet Model (2HDM-II) we study the production of three top quarks at the Large Hadron Collider (LHC). In the Standard Model the production cross section of three tops is low ($\approx 3$fb), while it is expected to be significant in the 2HDM-II for reasonable choices of t... |
1810.09886 | Leonid Glozman | L. Ya. Glozman | Chiralspin symmetry and its implications for QCD | 11 pages; Talk given at 7th International Conference on New Frontiers
in Physics (ICNFP 2018), Crete, 4-12 July 2018; Symposium "Quantum
Chromodynamics and its Symmetries", Oberwoelz, Austria, 9-15 September 2018;
final version; to appear in Universe | null | null | null | hep-ph hep-lat hep-th nucl-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In a local gauge-invariant theory with massless Dirac fermions a symmetry of
the Lorentz-invariant fermion charge is larger than a symmetry of the
Lagrangian as a whole. While the Dirac Lagrangian exhibits only a chiral
symmetry, the fermion charge operator is invariant under a larger symmetry
group, SU(2N_F), that i... | [
{
"created": "Tue, 23 Oct 2018 14:39:39 GMT",
"version": "v1"
},
{
"created": "Thu, 1 Nov 2018 15:54:13 GMT",
"version": "v2"
},
{
"created": "Fri, 11 Jan 2019 14:14:51 GMT",
"version": "v3"
}
] | 2019-01-14 | [
[
"Glozman",
"L. Ya.",
""
]
] | In a local gauge-invariant theory with massless Dirac fermions a symmetry of the Lorentz-invariant fermion charge is larger than a symmetry of the Lagrangian as a whole. While the Dirac Lagrangian exhibits only a chiral symmetry, the fermion charge operator is invariant under a larger symmetry group, SU(2N_F), that inc... |
hep-ph/0307003 | George Rupp | M. D. Scadron, G. Rupp, E. van Beveren, and F. Kleefeld | SU(3) Mass Splittings for $\bar{q}q$ Mesons and $qqq$ Baryons | 8 Pages, AIP Proc. Style; Contribution to the High-Energy Physics
Workshop "Scalar Mesons: an Interesting Puzzle for QCD", May 16-18, 2003,
SUNY Institute of Technology, Utica (NY) | AIPConf.Proc.688:183-190,2003 | 10.1063/1.1632205 | null | hep-ph | null | By comparing SU(3)-breaking scales of linear mass formulae, it is shown that
the lowest vector, axial-vector, and scalar mesons all have a $\bar{q}q$
configuration, while the ground-state octet and decuplet baryons are $qqq$.
Also, the quark-level linear $\sigma$ model is employed to predict similar
$\bar{q}q$ and $q... | [
{
"created": "Mon, 30 Jun 2003 21:31:08 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Scadron",
"M. D.",
""
],
[
"Rupp",
"G.",
""
],
[
"van Beveren",
"E.",
""
],
[
"Kleefeld",
"F.",
""
]
] | By comparing SU(3)-breaking scales of linear mass formulae, it is shown that the lowest vector, axial-vector, and scalar mesons all have a $\bar{q}q$ configuration, while the ground-state octet and decuplet baryons are $qqq$. Also, the quark-level linear $\sigma$ model is employed to predict similar $\bar{q}q$ and $qqq... |
2403.11862 | Parham Dehghani | Parham Dehghani, Mariana Frank, Benjamin Fuks | Collider imprint of vector-like leptons in light of anomalous magnetic
moment and neutrino data | 9 figures, 6 tables | null | null | null | hep-ph | http://creativecommons.org/licenses/by/4.0/ | We investigate the impact of incorporating anomaly-free representations of
vector-like leptons into the Standard Model, aiming to address longstanding
puzzles related to the anomalous magnetic moments of the muon and electron
while maintaining consistency with neutrino masses and mixings. We find that
among the vario... | [
{
"created": "Mon, 18 Mar 2024 15:15:29 GMT",
"version": "v1"
}
] | 2024-03-19 | [
[
"Dehghani",
"Parham",
""
],
[
"Frank",
"Mariana",
""
],
[
"Fuks",
"Benjamin",
""
]
] | We investigate the impact of incorporating anomaly-free representations of vector-like leptons into the Standard Model, aiming to address longstanding puzzles related to the anomalous magnetic moments of the muon and electron while maintaining consistency with neutrino masses and mixings. We find that among the various... |
1809.07474 | Subhaditya Bhattacharya | Subhaditya Bhattacharya, Purusottam Ghosh, Narendra Sahu | Multipartite Dark Matter with Scalars, Fermions and signatures at LHC | A section discussing the possible connection to inflation is added.
The version is published in JHEP | JHEP02(2019)059 | 10.1007/JHEP02(2019)059 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Basic idea of this analysis is to achieve a two-component dark matter (DM)
framework composed of a scalar and a fermion, with non-negligible DM-DM
interaction contributing to thermal freeze out (hence relic density), but
hiding them from direct detection bounds. We therefore augment the Standard
Model (SM) with a sca... | [
{
"created": "Thu, 20 Sep 2018 04:39:30 GMT",
"version": "v1"
},
{
"created": "Tue, 19 Feb 2019 11:58:56 GMT",
"version": "v2"
}
] | 2019-02-20 | [
[
"Bhattacharya",
"Subhaditya",
""
],
[
"Ghosh",
"Purusottam",
""
],
[
"Sahu",
"Narendra",
""
]
] | Basic idea of this analysis is to achieve a two-component dark matter (DM) framework composed of a scalar and a fermion, with non-negligible DM-DM interaction contributing to thermal freeze out (hence relic density), but hiding them from direct detection bounds. We therefore augment the Standard Model (SM) with a scala... |
1812.08189 | Markus Ebert | Markus A. Ebert, Ian Moult, Iain W. Stewart, Frank J. Tackmann,
Gherardo Vita, and Hua Xing Zhu | Subleading Power Rapidity Divergences and Power Corrections for $q_T$ | 40 pages + appendices, 3 figures; v2: TMD collaboration included in
acknowledgement; v3: minor changes, journal version | JHEP04(2019)123 | 10.1007/JHEP04(2019)123 | MIT-CTP 5087, DESY 18-207 | hep-ph nucl-th | http://creativecommons.org/licenses/by/4.0/ | A number of important observables exhibit logarithms in their perturbative
description that are induced by emissions at widely separated rapidities. These
include transverse-momentum ($q_T$) logarithms, logarithms involving
heavy-quark or electroweak gauge boson masses, and small-$x$ logarithms. In
this paper, we ini... | [
{
"created": "Wed, 19 Dec 2018 19:00:27 GMT",
"version": "v1"
},
{
"created": "Mon, 14 Jan 2019 22:20:46 GMT",
"version": "v2"
},
{
"created": "Tue, 23 Apr 2019 15:23:17 GMT",
"version": "v3"
}
] | 2019-04-24 | [
[
"Ebert",
"Markus A.",
""
],
[
"Moult",
"Ian",
""
],
[
"Stewart",
"Iain W.",
""
],
[
"Tackmann",
"Frank J.",
""
],
[
"Vita",
"Gherardo",
""
],
[
"Zhu",
"Hua Xing",
""
]
] | A number of important observables exhibit logarithms in their perturbative description that are induced by emissions at widely separated rapidities. These include transverse-momentum ($q_T$) logarithms, logarithms involving heavy-quark or electroweak gauge boson masses, and small-$x$ logarithms. In this paper, we initi... |
2403.08021 | Tzihu\'e Cisneros P\'erez | T. Cisneros-P\'erez, M. A. Hern\'andez-Ru\'iz, A. Ramirez-Morales, A.
Guti\'errez-Rodr\'iguez, and J. Monta\~no-Dom\'inguez | Top anomalous chromomagnetic dipole moment in the Bestest Little Higgs
Model | null | null | null | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the anomalous Chromomagnetic Dipole Moment (CMDM),
$\hat{\mu}^{BLHM}_t$ of the top quark in the Bestest Little Higgs Model (BLHM).
We include new interactions with the involvement of the extended CKM matrix of
the BLHM and we explore most of the allowed parameter space, obtaining multiple
CMDM in the r... | [
{
"created": "Tue, 12 Mar 2024 18:38:29 GMT",
"version": "v1"
}
] | 2024-03-14 | [
[
"Cisneros-Pérez",
"T.",
""
],
[
"Hernández-Ruíz",
"M. A.",
""
],
[
"Ramirez-Morales",
"A.",
""
],
[
"Gutiérrez-Rodríguez",
"A.",
""
],
[
"Montaño-Domínguez",
"J.",
""
]
] | We investigate the anomalous Chromomagnetic Dipole Moment (CMDM), $\hat{\mu}^{BLHM}_t$ of the top quark in the Bestest Little Higgs Model (BLHM). We include new interactions with the involvement of the extended CKM matrix of the BLHM and we explore most of the allowed parameter space, obtaining multiple CMDM in the ran... |
hep-ph/9909385 | A. J. Buchmann | A. J. Buchmann | N->Delta Quadrupole Transition in the Constituent Quark Model | 12 pages, published in the Proceedings of the 8th International
Conference on the Structure of Baryons, Bonn, Germany, Sept. 22-26, 1998,
Baryons' 98, eds. D. W. Menze and B. Ch. Metsch, World Scientific, Singapore,
1999, pg. 731 | null | null | null | hep-ph nucl-th | null | Information on the intrinsic deformation of the proton can be obtained by
studying the electromagnetic p-->Delta+ quadrupole transition. Recent
experiments have shown that the electric quadrupole (E2) strength in gamma p
--> Delta+ is about 10 times larger than predicted by the simple quark model
using only one-body ... | [
{
"created": "Wed, 15 Sep 1999 16:22:22 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Buchmann",
"A. J.",
""
]
] | Information on the intrinsic deformation of the proton can be obtained by studying the electromagnetic p-->Delta+ quadrupole transition. Recent experiments have shown that the electric quadrupole (E2) strength in gamma p --> Delta+ is about 10 times larger than predicted by the simple quark model using only one-body cu... |
2001.08093 | Pablo G. Ortega | Pablo G. Ortega, Jorge Segovia, David R. Entem and Francisco Fernandez | Spectroscopy of $\mathbf{B_c}$ mesons and the possibility of finding
exotic $\mathbf{B_c}$-like structures | 7 pages, 4 tables | null | 10.1140/epjc/s10052-020-7764-6 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The bottom-charmed ($B_c$) mesons are more stable than their charmonium
($c\bar c$) and bottomium ($b\bar b$) partners because they cannot annihilate
into gluons. However, the low production cross-sections and
signal-to-background ratios avoided until now their clear identification. The
recent experimental results re... | [
{
"created": "Wed, 22 Jan 2020 15:56:16 GMT",
"version": "v1"
},
{
"created": "Tue, 28 Jan 2020 11:44:57 GMT",
"version": "v2"
},
{
"created": "Tue, 18 Feb 2020 11:54:59 GMT",
"version": "v3"
}
] | 2020-04-22 | [
[
"Ortega",
"Pablo G.",
""
],
[
"Segovia",
"Jorge",
""
],
[
"Entem",
"David R.",
""
],
[
"Fernandez",
"Francisco",
""
]
] | The bottom-charmed ($B_c$) mesons are more stable than their charmonium ($c\bar c$) and bottomium ($b\bar b$) partners because they cannot annihilate into gluons. However, the low production cross-sections and signal-to-background ratios avoided until now their clear identification. The recent experimental results repo... |
hep-ph/9802234 | Mikhail Voloshin | B.M. Chibisov, M.B. Voloshin | Top quark longitudinal polarization near the threshold in l+ l-
annihilation | 6 pages, LaTeX, no figures, added references, corrected typos | Mod.Phys.Lett. A13 (1998) 973-978 | 10.1142/S0217732398001042 | TPI-MINN-98/02-T, UMN-TH-1623-98 | hep-ph | null | We show that the longitudinal polarization of the top quarks produced in the
annihilation of e+ e- or mu+ mu- into tbar t at energies near the threshold is
not affected by the large Coulomb-type corrections, which greatly modify the
total cross section. Thus the longitudinal polarization, although small, may
provide ... | [
{
"created": "Tue, 3 Feb 1998 20:52:12 GMT",
"version": "v1"
},
{
"created": "Thu, 5 Feb 1998 23:00:58 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Chibisov",
"B. M.",
""
],
[
"Voloshin",
"M. B.",
""
]
] | We show that the longitudinal polarization of the top quarks produced in the annihilation of e+ e- or mu+ mu- into tbar t at energies near the threshold is not affected by the large Coulomb-type corrections, which greatly modify the total cross section. Thus the longitudinal polarization, although small, may provide an... |
2109.07851 | Andreas Maier | Jeppe R. Andersen and Andreas Maier | Unbiased Elimination of Negative Weights in Monte Carlo Samples | 22 pages, 7 figures | null | 10.1140/epjc/s10052-022-10372-3 | DCPT/21/54, DESY 21-135, IPPP/21/27, MCNET-21-14, SAGEX-21-29 | hep-ph hep-ex | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose a novel method for the elimination of negative Monte Carlo event
weights. The method is process-agnostic, independent of any analysis, and
preserves all physical observables. We demonstrate the overall performance and
systematic improvement with increasing event sample size, based on predictions
for the pr... | [
{
"created": "Thu, 16 Sep 2021 10:31:52 GMT",
"version": "v1"
},
{
"created": "Mon, 16 May 2022 14:35:41 GMT",
"version": "v2"
}
] | 2022-06-01 | [
[
"Andersen",
"Jeppe R.",
""
],
[
"Maier",
"Andreas",
""
]
] | We propose a novel method for the elimination of negative Monte Carlo event weights. The method is process-agnostic, independent of any analysis, and preserves all physical observables. We demonstrate the overall performance and systematic improvement with increasing event sample size, based on predictions for the prod... |
1706.07046 | Asher Berlin | Asher Berlin, Nikita Blinov | Thermal Dark Matter Below an MeV | 5 pages, 4 figures; discussion and references added | Phys. Rev. Lett. 120, 021801 (2018) | 10.1103/PhysRevLett.120.021801 | SLAC-PUB-16989 | hep-ph astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a class of models in which thermal dark matter is lighter than an
MeV. If dark matter thermalizes with the Standard Model below the temperature
of neutrino-photon decoupling, equilibration and freeze-out cools and heats the
Standard Model bath comparably, alleviating constraints from measurements of
the e... | [
{
"created": "Wed, 21 Jun 2017 18:00:00 GMT",
"version": "v1"
},
{
"created": "Fri, 2 Mar 2018 01:01:11 GMT",
"version": "v2"
}
] | 2018-03-05 | [
[
"Berlin",
"Asher",
""
],
[
"Blinov",
"Nikita",
""
]
] | We consider a class of models in which thermal dark matter is lighter than an MeV. If dark matter thermalizes with the Standard Model below the temperature of neutrino-photon decoupling, equilibration and freeze-out cools and heats the Standard Model bath comparably, alleviating constraints from measurements of the eff... |
hep-ph/9707501 | Dar Arnon | Arnon Dar | Supernova 1987A - Ten Years After | Invited talk, to appear in the Proceedings of the 1997 Rencontre de
Physique de la Vallee d'Aoste, Italy | null | null | null | hep-ph astro-ph | null | Supernova 1987A became a milestone in physics and astronomy. The most
important things that have been learned from it, the most important problems
yet to be solved and the prospects for learning important new physics from
future observations of nearby supernova explosions are shortly summarized.
| [
{
"created": "Tue, 29 Jul 1997 06:19:42 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Dar",
"Arnon",
""
]
] | Supernova 1987A became a milestone in physics and astronomy. The most important things that have been learned from it, the most important problems yet to be solved and the prospects for learning important new physics from future observations of nearby supernova explosions are shortly summarized. |
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