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hep-ph/9606415
Piotr Chankowski
P.H. Chankowski (SCIPP, Warsaw), D. Choudhoury (MPI Munich), S. Pokorski (MPI Munich, Warsaw)
ALEPH Four-Jet Excess, $R_b$ and $R-$Parity Violation
17 pages, submited as uuencoded gz-compressed .tar file containing LATEX file and figures. Some typos fixed and the important error in the caption of Fig. 7 corrected
Phys.Lett. B389 (1996) 677-686
10.1016/S0370-2693(96)01335-4
SCIPP-96/27, MPI-PTh/96-44
hep-ph
null
We review briefly the indications for some relatively light superpartners based on the ~$R_b$ ~anomaly and discuss the dependence of the potential increase in $R_b$ on the assumption about ~$R-$parity (non)conservation. We point out that the exotic 4-jet events reported by ALEPH may constitute a signal for supersymme...
[ { "created": "Sun, 23 Jun 1996 20:25:04 GMT", "version": "v1" }, { "created": "Mon, 24 Jun 1996 22:12:35 GMT", "version": "v2" } ]
2009-10-28
[ [ "Chankowski", "P. H.", "", "SCIPP, Warsaw" ], [ "Choudhoury", "D.", "", "MPI Munich" ], [ "Pokorski", "S.", "", "MPI Munich, Warsaw" ] ]
We review briefly the indications for some relatively light superpartners based on the ~$R_b$ ~anomaly and discuss the dependence of the potential increase in $R_b$ on the assumption about ~$R-$parity (non)conservation. We point out that the exotic 4-jet events reported by ALEPH may constitute a signal for supersymmetr...
0907.0668
Alexander Dolgov
A.D. Dolgov
Introduction to Cosmology
58 pages, 3 figures, lectures at ITEP winter school, 2009, for particle physicists
Phys.Atom.Nucl.73:815-847,2010
10.1134/S1063778810050091
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
An introductory lectures on cosmology at ITEP Winter School for students specializing in particle physics are presented. Many important subjects are not covered because of lack of time and space but hopefully the lectures may serve as a starting point for further studies.
[ { "created": "Fri, 3 Jul 2009 16:38:13 GMT", "version": "v1" } ]
2014-11-20
[ [ "Dolgov", "A. D.", "" ] ]
An introductory lectures on cosmology at ITEP Winter School for students specializing in particle physics are presented. Many important subjects are not covered because of lack of time and space but hopefully the lectures may serve as a starting point for further studies.
2209.09429
Yue Zhang
Yue Zhang
The Axion Quality and Fifth Force
10 pages, 1 figure. v2: Corrected the comment on equivalence principle in case 2, and a few typos. Main results unchanged
Phys. Rev. D 107, 055025 (2023)
10.1103/PhysRevD.107.055025
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We investigate what it takes for the axion to address the strong CP problem in the presence of explicit Peccei-Quinn (PQ) symmetry breaking effects besides the strong interaction. In cases where the PQ-Higgsing scalar field directly couples to the Standard Model sector, it is pointed out that existing fifth force exp...
[ { "created": "Tue, 20 Sep 2022 02:51:21 GMT", "version": "v1" }, { "created": "Tue, 27 Sep 2022 21:07:48 GMT", "version": "v2" } ]
2023-03-20
[ [ "Zhang", "Yue", "" ] ]
We investigate what it takes for the axion to address the strong CP problem in the presence of explicit Peccei-Quinn (PQ) symmetry breaking effects besides the strong interaction. In cases where the PQ-Higgsing scalar field directly couples to the Standard Model sector, it is pointed out that existing fifth force exper...
1208.1533
Stephen P. Martin
Stephen P. Martin
Shift in the LHC Higgs diphoton mass peak from interference with background
10 pages. v2: comments on scale variation added, reference added
null
10.1103/PhysRevD.86.073016
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Higgs diphoton amplitude from gluon fusion at the LHC interferes with the continuum background induced by quark loops. I investigate the effect of this interference on the position of the diphoton invariant mass peak used to help determine the Higgs mass. At leading order, the interference shifts the peak towards...
[ { "created": "Tue, 7 Aug 2012 21:58:37 GMT", "version": "v1" }, { "created": "Thu, 11 Oct 2012 04:38:44 GMT", "version": "v2" } ]
2013-05-30
[ [ "Martin", "Stephen P.", "" ] ]
The Higgs diphoton amplitude from gluon fusion at the LHC interferes with the continuum background induced by quark loops. I investigate the effect of this interference on the position of the diphoton invariant mass peak used to help determine the Higgs mass. At leading order, the interference shifts the peak towards l...
2006.05663
Shuai Zhao
Shuai Zhao and Anatoly V. Radyushkin
$B$-meson Ioffe-time distribution amplitude at short distances
6 pages, 1 figure, version published in Phys. Rev. D
Phys. Rev. D 103, 054022 (2021)
10.1103/PhysRevD.103.054022
JLAB-THY-20-3205
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose the approach for a lattice investigation of light-cone distribution amplitudes (LCDA) of heavy-light mesons, such as the $B$-meson, using the formalism of parton pseudo-distributions. A basic ingredient of the approach is the study of short-distance behavior of the $B$-meson Ioffe-time distribution amplitu...
[ { "created": "Wed, 10 Jun 2020 05:32:33 GMT", "version": "v1" }, { "created": "Fri, 19 Mar 2021 18:21:10 GMT", "version": "v2" } ]
2021-03-23
[ [ "Zhao", "Shuai", "" ], [ "Radyushkin", "Anatoly V.", "" ] ]
We propose the approach for a lattice investigation of light-cone distribution amplitudes (LCDA) of heavy-light mesons, such as the $B$-meson, using the formalism of parton pseudo-distributions. A basic ingredient of the approach is the study of short-distance behavior of the $B$-meson Ioffe-time distribution amplitude...
2110.12441
Qing-Yong Lin
Qing-Yong Lin, Xiang Liu
Production of charmed baryon $\Lambda_c(2860)$ via low energy antiproton-proton interaction
7pages, 14 figures
null
10.1103/PhysRevD.105.014035
null
hep-ph hep-ex
http://creativecommons.org/publicdomain/zero/1.0/
In the present work, we study the production problem of the charmed baryon $\Lambda_c(2860)^+$ at $\overline{\mbox{P}}$ANDA. With the $J^P=\frac{3}{2}^+$ assignment to $\Lambda_c(2860)^+$, an effective Lagrangian approach is adopted to calculate the cross section of $p\bar{p} \to \Lambda_c^-\Lambda_c(2860)^+$. The Da...
[ { "created": "Sun, 24 Oct 2021 13:28:34 GMT", "version": "v1" }, { "created": "Tue, 26 Oct 2021 12:26:58 GMT", "version": "v2" }, { "created": "Fri, 7 Jan 2022 14:40:53 GMT", "version": "v3" } ]
2022-02-09
[ [ "Lin", "Qing-Yong", "" ], [ "Liu", "Xiang", "" ] ]
In the present work, we study the production problem of the charmed baryon $\Lambda_c(2860)^+$ at $\overline{\mbox{P}}$ANDA. With the $J^P=\frac{3}{2}^+$ assignment to $\Lambda_c(2860)^+$, an effective Lagrangian approach is adopted to calculate the cross section of $p\bar{p} \to \Lambda_c^-\Lambda_c(2860)^+$. The Dali...
1107.5294
Leonard Gamberg
Daniel Boer, Leonard Gamberg, Bernhard Musch, Alexei Prokudin
Bessel-Weighted Asymmetries in Semi Inclusive Deep Inelastic Scattering
Matches published version, JHEP style, 36 pages and 2 figures, minor corrections
JHEP 10 (2011) 021
10.1007/JHEP10(2011)021
JLAB-THY-11-1327
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The concept of weighted asymmetries is revisited for semi-inclusive deep inelastic scattering. We consider the cross section in Fourier space, conjugate to the outgoing hadron's transverse momentum, where convolutions of transverse momentum dependent parton distribution functions and fragmentation functions become si...
[ { "created": "Tue, 26 Jul 2011 19:09:11 GMT", "version": "v1" }, { "created": "Thu, 22 Dec 2011 19:28:28 GMT", "version": "v2" } ]
2015-05-28
[ [ "Boer", "Daniel", "" ], [ "Gamberg", "Leonard", "" ], [ "Musch", "Bernhard", "" ], [ "Prokudin", "Alexei", "" ] ]
The concept of weighted asymmetries is revisited for semi-inclusive deep inelastic scattering. We consider the cross section in Fourier space, conjugate to the outgoing hadron's transverse momentum, where convolutions of transverse momentum dependent parton distribution functions and fragmentation functions become simp...
1404.5953
Bibhushan Shakya
Anson Hook, John Kearney, Bibhushan Shakya, Kathryn M. Zurek
Probable or Improbable Universe? Correlating Electroweak Vacuum Instability with the Scale of Inflation
26 pages, 7 figures. Clarifications added. Matches published version in JHEP
null
10.1007/JHEP01(2015)061
MCTP-14-10
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Measurements of the Higgs boson and top quark masses indicate that the Standard Model Higgs potential becomes unstable around $\Lambda_I \sim 10^{11}$ GeV. This instability is cosmologically relevant since quantum fluctuations during inflation can easily destabilize the electroweak vacuum if the Hubble parameter duri...
[ { "created": "Wed, 23 Apr 2014 20:00:04 GMT", "version": "v1" }, { "created": "Tue, 10 Feb 2015 21:14:17 GMT", "version": "v2" } ]
2015-06-19
[ [ "Hook", "Anson", "" ], [ "Kearney", "John", "" ], [ "Shakya", "Bibhushan", "" ], [ "Zurek", "Kathryn M.", "" ] ]
Measurements of the Higgs boson and top quark masses indicate that the Standard Model Higgs potential becomes unstable around $\Lambda_I \sim 10^{11}$ GeV. This instability is cosmologically relevant since quantum fluctuations during inflation can easily destabilize the electroweak vacuum if the Hubble parameter during...
0711.2006
Carlos Luis Schat
Dan Pirjol, Carlos Schat
Excited Baryons in Large Nc QCD: Matching the 1/Nc expansion to quark models using the permutation group S_N
6 pages, Invited plenary talk at NSTAR2007, Workshop on the Physics of Excited Nucleons, 5 - 8 September 2007, Bonn, Germany
null
null
null
hep-ph hep-th nucl-th
null
We show how to match quark models to the 1/Nc expansion of QCD. As an example we discuss in detail the mass operator of orbitally excited baryons and match it to the one-gluon exchange and the one-boson exchange variants of the quark model. The matching procedure is very general and makes use of the transformation pr...
[ { "created": "Tue, 13 Nov 2007 16:28:08 GMT", "version": "v1" } ]
2007-11-26
[ [ "Pirjol", "Dan", "" ], [ "Schat", "Carlos", "" ] ]
We show how to match quark models to the 1/Nc expansion of QCD. As an example we discuss in detail the mass operator of orbitally excited baryons and match it to the one-gluon exchange and the one-boson exchange variants of the quark model. The matching procedure is very general and makes use of the transformation prop...
2309.10032
Anupam Ray
Maxim Pospelov and Anupam Ray
Neutrinos from Earth-Bound Dark Matter Annihilation
v2: 15 pages, 5 figures. Minor clarifications added, conclusion unchanged. Published in JCAP
JCAP 01 (2024) 029
10.1088/1475-7516/2024/01/029
N3AS-23-030
hep-ph astro-ph.CO astro-ph.EP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A sub-component of dark matter with a short collision length compared to a planetary size leads to efficient accumulation of dark matter in astrophysical bodies. We analyze possible neutrino signals from the annihilation of such dark matter and conclude that in the optically thick regime for dark matter capture, the ...
[ { "created": "Mon, 18 Sep 2023 18:00:02 GMT", "version": "v1" }, { "created": "Fri, 12 Jan 2024 14:33:53 GMT", "version": "v2" } ]
2024-01-15
[ [ "Pospelov", "Maxim", "" ], [ "Ray", "Anupam", "" ] ]
A sub-component of dark matter with a short collision length compared to a planetary size leads to efficient accumulation of dark matter in astrophysical bodies. We analyze possible neutrino signals from the annihilation of such dark matter and conclude that in the optically thick regime for dark matter capture, the Ea...
1507.06197
Matteo Cacciari
Matteo Cacciari, Michelangelo L. Mangano and Paolo Nason
Gluon PDF constraints from the ratio of forward heavy quark production at the LHC at \sqrt{S}=7 and 13 TeV
21 pages, 13 figures, 12 tables
null
null
CERN-PH-TH/2015-171
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss production of charm and bottom quarks at forward rapidity in pp collisions at the LHC, updating the QCD predictions for the run at \sqrt{S}=13 TeV. We show that, while the absolute rates suffer from large theoretical systematics, dominated by scale uncertainties, the increase relative to the rates precisel...
[ { "created": "Wed, 22 Jul 2015 14:13:28 GMT", "version": "v1" } ]
2015-07-23
[ [ "Cacciari", "Matteo", "" ], [ "Mangano", "Michelangelo L.", "" ], [ "Nason", "Paolo", "" ] ]
We discuss production of charm and bottom quarks at forward rapidity in pp collisions at the LHC, updating the QCD predictions for the run at \sqrt{S}=13 TeV. We show that, while the absolute rates suffer from large theoretical systematics, dominated by scale uncertainties, the increase relative to the rates precisely ...
0903.5209
Stefan Strau{\ss}
S.Strauss, S.Mattiello, and M.Beyer
Light-front Nambu--Jona-Lasinio model at finite temperature and density
16 pages, 6 figures
J.Phys.G36:085006,2009
10.1088/0954-3899/36/8/085006
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In recent years light-front quantisation has been extended to allow for a consistent treatment of systems at finite temperature and density. This is in particular interesting for an investigation of the processes in nuclear matter under extreme condition as occurring, e.g., during a heavy ion collision. Utilising a D...
[ { "created": "Mon, 30 Mar 2009 12:45:45 GMT", "version": "v1" } ]
2009-07-22
[ [ "Strauss", "S.", "" ], [ "Mattiello", "S.", "" ], [ "Beyer", "M.", "" ] ]
In recent years light-front quantisation has been extended to allow for a consistent treatment of systems at finite temperature and density. This is in particular interesting for an investigation of the processes in nuclear matter under extreme condition as occurring, e.g., during a heavy ion collision. Utilising a Dys...
1612.01777
Santi Peris
Diogo Boito, Maarten Golterman, Kim Maltman and Santiago Peris
$\alpha_s$ in 2016 from the (revised) ALEPH data for $\tau$ decay
Contribution to ICHEP 2016. 6 pages, 3 figures
null
null
null
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We summarize a comparison of the two strategies which are currently available in the literature for determining the value of $\alpha_s(m_\tau)$. We will refer to these as the truncated Operator Product Expansion model and the Duality Violation model. After describing the main features of both approaches, we explain w...
[ { "created": "Tue, 6 Dec 2016 12:30:19 GMT", "version": "v1" } ]
2016-12-07
[ [ "Boito", "Diogo", "" ], [ "Golterman", "Maarten", "" ], [ "Maltman", "Kim", "" ], [ "Peris", "Santiago", "" ] ]
We summarize a comparison of the two strategies which are currently available in the literature for determining the value of $\alpha_s(m_\tau)$. We will refer to these as the truncated Operator Product Expansion model and the Duality Violation model. After describing the main features of both approaches, we explain why...
1301.7163
Alexander Potylitsyn
A. Potylitsyn, A. Kol`chuzhkin
Characteristics of Final Particles in Multiple Compton Backscattering Process
13 pages, 7 figures
null
10.1016/j.nimb.2013.01.071
null
hep-ph physics.acc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
An electron passing through a counter propagating intense laser beam can interact with a few laser photons with emission of a hard photon in each collision event. In contrast with the well-known nonlinear Compton backscattering process the above mentioned process may be named as multiple Compton backscattering proces...
[ { "created": "Wed, 30 Jan 2013 08:38:24 GMT", "version": "v1" } ]
2015-06-12
[ [ "Potylitsyn", "A.", "" ], [ "Kol`chuzhkin", "A.", "" ] ]
An electron passing through a counter propagating intense laser beam can interact with a few laser photons with emission of a hard photon in each collision event. In contrast with the well-known nonlinear Compton backscattering process the above mentioned process may be named as multiple Compton backscattering process ...
1403.6451
Li Lin Yang
Thomas Gehrmann, Thomas Luebbert, Li Lin Yang
Calculation of the transverse parton distribution functions at next-to-next-to-leading order
34 pages, 2 figures, FORM file of results included to source; fixed a typo in I_{q/q}^{(2)}
null
10.1007/JHEP06(2014)155
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We describe the perturbative calculation of the transverse parton distribution functions in all partonic channels up to next-to-next-to-leading order based on a gauge invariant operator definition. We demonstrate the cancellation of light-cone divergences and show that universal process-independent transverse parton ...
[ { "created": "Tue, 25 Mar 2014 18:47:09 GMT", "version": "v1" }, { "created": "Thu, 10 Apr 2014 23:05:12 GMT", "version": "v2" }, { "created": "Mon, 7 Feb 2022 07:56:50 GMT", "version": "v3" } ]
2022-02-08
[ [ "Gehrmann", "Thomas", "" ], [ "Luebbert", "Thomas", "" ], [ "Yang", "Li Lin", "" ] ]
We describe the perturbative calculation of the transverse parton distribution functions in all partonic channels up to next-to-next-to-leading order based on a gauge invariant operator definition. We demonstrate the cancellation of light-cone divergences and show that universal process-independent transverse parton di...
2105.08210
Teruyuki Kitabayashi
Yuta Hyodo and Teruyuki Kitabayashi
New magic textures of Majorana neutrinos and baryon asymmetry of the Universe
36 pages, 15 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The magic texture is one of the successful textures of the flavor neutrino mass matrix for Majorana neutrinos. In this paper, it turns out that two new types of magic textures are also consistent with the neutrino oscillation experiments, observation of cosmic microwave background radiation, and neutrinoless double b...
[ { "created": "Tue, 18 May 2021 00:30:59 GMT", "version": "v1" }, { "created": "Mon, 2 Aug 2021 01:49:42 GMT", "version": "v2" }, { "created": "Mon, 8 Nov 2021 01:37:52 GMT", "version": "v3" } ]
2021-11-09
[ [ "Hyodo", "Yuta", "" ], [ "Kitabayashi", "Teruyuki", "" ] ]
The magic texture is one of the successful textures of the flavor neutrino mass matrix for Majorana neutrinos. In this paper, it turns out that two new types of magic textures are also consistent with the neutrino oscillation experiments, observation of cosmic microwave background radiation, and neutrinoless double bet...
1301.5313
Dave Hollander
D. Hollander
Astrophysical neutrino flavor ratios in the presence of sterile neutrinos
8 pages, 4 figures, 1 table
null
null
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Astrophysical objects such as active-galactic nuclei (AGN) and gamma-ray bursts (GRBs) can be sources of high energy, astrophysical neutrinos. The decay of charged pions produces electron and muon-flavor neutrinos from the primary decay of the pion, and from the secondary decay of the resulting charged lepton. At low...
[ { "created": "Tue, 22 Jan 2013 20:59:14 GMT", "version": "v1" } ]
2013-01-23
[ [ "Hollander", "D.", "" ] ]
Astrophysical objects such as active-galactic nuclei (AGN) and gamma-ray bursts (GRBs) can be sources of high energy, astrophysical neutrinos. The decay of charged pions produces electron and muon-flavor neutrinos from the primary decay of the pion, and from the secondary decay of the resulting charged lepton. At low e...
1510.02346
Jens Hoff
Jens Hoff
Methods for Higgs boson production at N$^3$LO
5 pages, proceedings of QCD 15, 29 June - 3 July 2015, Montpellier, France; v2: added preprint number
null
null
DESY 15-165
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss methods for the calculation of the total partonic Higgs boson production cross section via gluon fusion and the result for the contribution that stems from two quarks of different flavor in the initial state. Our calculation is exact in the Higgs boson mass and the partonic center-of-mass energy. The resul...
[ { "created": "Thu, 8 Oct 2015 14:48:32 GMT", "version": "v1" }, { "created": "Fri, 9 Oct 2015 06:25:12 GMT", "version": "v2" } ]
2015-10-12
[ [ "Hoff", "Jens", "" ] ]
We discuss methods for the calculation of the total partonic Higgs boson production cross section via gluon fusion and the result for the contribution that stems from two quarks of different flavor in the initial state. Our calculation is exact in the Higgs boson mass and the partonic center-of-mass energy. The result ...
0912.1716
Clare Burrage
Clare Burrage, Anne-Christine Davis, Douglas J. Shaw
Searching for Axion-like Particles with Active Galactic Nuclei
4 pages, 3 figures. Contribution to the "5th Patras Workshop on Axions, WIMPs and WISPs", Durham 13-17 July 2009
null
null
DESY 09-215
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Strong mixing between photons and axion-like particles in the magnetic fields of clusters of galaxies induces a scatter in the observed luminosities of compact sources in the cluster. This is used to construct a new test for axion-like particles; applied to observations of active galactic nuclei it is strongly sugges...
[ { "created": "Wed, 9 Dec 2009 10:56:49 GMT", "version": "v1" } ]
2009-12-10
[ [ "Burrage", "Clare", "" ], [ "Davis", "Anne-Christine", "" ], [ "Shaw", "Douglas J.", "" ] ]
Strong mixing between photons and axion-like particles in the magnetic fields of clusters of galaxies induces a scatter in the observed luminosities of compact sources in the cluster. This is used to construct a new test for axion-like particles; applied to observations of active galactic nuclei it is strongly suggesti...
hep-ph/9309329
Andreas Schaale
A.A.Bel'kov, G.Bohm, A.V.Lanyov, A.Schaale
On the $p^4$--corrections to $K \to 3\pi$ decay amplitudes in nonlinear and linear chiral models
14 pages
null
null
null
hep-ph
null
The calculations of isotopic amplitudes and their results for the direct $CP$--violating charge asymmetry in $K^\pm \to 3\pi$ decays within the nonlinear and linear ($\sigma$--model) chiral Lagrangian approach are compared with each other. It is shown, that the latter, taking into account intermediate scalar resonanc...
[ { "created": "Mon, 27 Sep 1993 21:20:15 GMT", "version": "v1" } ]
2007-05-23
[ [ "Bel'kov", "A. A.", "" ], [ "Bohm", "G.", "" ], [ "Lanyov", "A. V.", "" ], [ "Schaale", "A.", "" ] ]
The calculations of isotopic amplitudes and their results for the direct $CP$--violating charge asymmetry in $K^\pm \to 3\pi$ decays within the nonlinear and linear ($\sigma$--model) chiral Lagrangian approach are compared with each other. It is shown, that the latter, taking into account intermediate scalar resonances...
2005.01156
Madan Singh
Madan Singh
Rephasing invariant quartets in texture zero neutrino mass matrix and CP violation
26 pages, 5 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In the quark sector, Jarlskog rephasing invariant $\rm{J_{CP}}$ has important implications for the CP violation as well as phase structure of the quark mass matrices. In fact all CP violating effects in this sector are proportional to the magnitude of the imaginary part of $\rm{J_{CP}}$. With the observation of non...
[ { "created": "Sun, 3 May 2020 17:53:52 GMT", "version": "v1" } ]
2020-05-05
[ [ "Singh", "Madan", "" ] ]
In the quark sector, Jarlskog rephasing invariant $\rm{J_{CP}}$ has important implications for the CP violation as well as phase structure of the quark mass matrices. In fact all CP violating effects in this sector are proportional to the magnitude of the imaginary part of $\rm{J_{CP}}$. With the observation of non-zer...
hep-ph/9411394
Jens Erler
Jens Erler (Univ. of Pennsylvania)
Four-Fermi Operators in $e^+$ $e^-$ Annihilation Experiments and Uncertainties in $Z$ Boson Properties
20 pages of RevTeX
Phys.Rev.D52:28-36,1995
10.1103/PhysRevD.52.28
UPR-0633T
hep-ph
null
We investigate the effects of possible new four-Fermi operators on $e^+$ $e^-$ annihilation experiments. They represent a class of new physics, which has the potential to change the parameters of the $Z$ boson and at the same time interferes with their determination from the data. We show that in the presence of such...
[ { "created": "Fri, 25 Nov 1994 17:22:19 GMT", "version": "v1" } ]
2010-01-15
[ [ "Erler", "Jens", "", "Univ. of Pennsylvania" ] ]
We investigate the effects of possible new four-Fermi operators on $e^+$ $e^-$ annihilation experiments. They represent a class of new physics, which has the potential to change the parameters of the $Z$ boson and at the same time interferes with their determination from the data. We show that in the presence of such o...
hep-ph/0110091
Alberico
W.M. Alberico, A. Drago, C. Ratti
Stability of strange quark matter: MIT bag versus Color Dielectric Model
26 pages, 9 figures
Nucl.Phys.A706:143-162,2002
10.1016/S0375-9474(02)00680-2
null
hep-ph
null
We discuss the properties of strange matter, in particular the minimum of the energy per baryon number as a function of the strangeness fraction. We utilize both the MIT bag model and the Color Dielectric Model and compare the energy per baryon with the masses of hyperons having the corresponding strangeness fraction...
[ { "created": "Fri, 5 Oct 2001 17:19:27 GMT", "version": "v1" } ]
2011-07-19
[ [ "Alberico", "W. M.", "" ], [ "Drago", "A.", "" ], [ "Ratti", "C.", "" ] ]
We discuss the properties of strange matter, in particular the minimum of the energy per baryon number as a function of the strangeness fraction. We utilize both the MIT bag model and the Color Dielectric Model and compare the energy per baryon with the masses of hyperons having the corresponding strangeness fraction, ...
1708.00911
Valerio Bertone Dr
Valerio Bertone
APFEL++: A new PDF evolution library in C++
7 pages, 4 figures, proceedings of the DIS2017 conference
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I present a preliminary version of {\tt APFEL++}, a C++ rewriting of the Fortran 77 evolution code {\tt APFEL}. In this contribution I discuss the new philosophy adopted for the numerical computation of the convolutions, demonstrate the ability to reproduce old results in an accurate and fast way, and present an orig...
[ { "created": "Wed, 2 Aug 2017 20:00:06 GMT", "version": "v1" } ]
2017-08-04
[ [ "Bertone", "Valerio", "" ] ]
I present a preliminary version of {\tt APFEL++}, a C++ rewriting of the Fortran 77 evolution code {\tt APFEL}. In this contribution I discuss the new philosophy adopted for the numerical computation of the convolutions, demonstrate the ability to reproduce old results in an accurate and fast way, and present an origin...
2106.07209
Takahiro Kubota
Takeo Inami and Takahiro Kubota
Heavy particle non-decoupling in flavor-changing gravitational interactions
33 pages, 4 figures, Added references. Revised the argument in section 10. Rewritten the claim in section 9
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The flavor-changing gravitational process d --> s + graviton, is evaluated at the one-loop level in the standard electroweak theory with on-shell renormalization. The results we present in the 't Hooft-Feynman gauge are valid for on- and off-shell quarks and for all external and internal quark masses. We show that th...
[ { "created": "Mon, 14 Jun 2021 07:50:19 GMT", "version": "v1" }, { "created": "Thu, 8 Jul 2021 07:11:31 GMT", "version": "v2" }, { "created": "Sun, 12 Sep 2021 04:39:26 GMT", "version": "v3" }, { "created": "Sat, 20 Nov 2021 14:37:20 GMT", "version": "v4" } ]
2021-11-23
[ [ "Inami", "Takeo", "" ], [ "Kubota", "Takahiro", "" ] ]
The flavor-changing gravitational process d --> s + graviton, is evaluated at the one-loop level in the standard electroweak theory with on-shell renormalization. The results we present in the 't Hooft-Feynman gauge are valid for on- and off-shell quarks and for all external and internal quark masses. We show that ther...
2106.02464
Yoshio Koide
Yoshio Koide
Composite Model of Quarks and Leptons
null
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
A compsite model of quarks and leptons is proposed. The quarks and leptons are given by three body states which are composed of constituents $(w_1, w_2, c_1, c_2, c_3)$ of SU(5)$_{flavor}$ and $(f_1, f_2, f_3)$ of SU(3)$_{family}$
[ { "created": "Fri, 4 Jun 2021 13:08:29 GMT", "version": "v1" } ]
2021-06-07
[ [ "Koide", "Yoshio", "" ] ]
A compsite model of quarks and leptons is proposed. The quarks and leptons are given by three body states which are composed of constituents $(w_1, w_2, c_1, c_2, c_3)$ of SU(5)$_{flavor}$ and $(f_1, f_2, f_3)$ of SU(3)$_{family}$
hep-ph/9808300
Rodolfo Sassot
D. de Florian (CERN), R. Sassot (Universidad de Buenos Aires)
Fracture Functions for Diffractive and Leading Proton DIS
5 pages, 7 figures, LaTeX, uses ltwol2e.sty and epsfig.sty. Talk given at ICHEP98
null
null
null
hep-ph
null
We present a combined QCD analysis of diffractive and leading proton deep inelastic scattering data using the framework of fracture functions. It is shown that this framework allows a precise and unified perturbative QCD description for the data, alternative to those that relay on Regge factorization.
[ { "created": "Tue, 11 Aug 1998 18:12:48 GMT", "version": "v1" } ]
2007-05-23
[ [ "de Florian", "D.", "", "CERN" ], [ "Sassot", "R.", "", "Universidad de Buenos Aires" ] ]
We present a combined QCD analysis of diffractive and leading proton deep inelastic scattering data using the framework of fracture functions. It is shown that this framework allows a precise and unified perturbative QCD description for the data, alternative to those that relay on Regge factorization.
hep-ph/0011022
Kevin E. Cahill
Kevin Cahill
Toward a Neutrino Mass Matrix
3 pages, 1 figure, talk at DPF2000
Int.J.Mod.Phys. A16S1B (2001) 712-714
10.1142/S0217751X01007868
null
hep-ph
null
One may identify the general properties of the neutrino mass matrix by generating many random mass matrices and testing them against the results of the neutrino experiments.
[ { "created": "Thu, 2 Nov 2000 05:55:49 GMT", "version": "v1" } ]
2009-10-31
[ [ "Cahill", "Kevin", "" ] ]
One may identify the general properties of the neutrino mass matrix by generating many random mass matrices and testing them against the results of the neutrino experiments.
hep-ph/0205121
Jose Antonio Oller
Jose A. Oller
Finite width effects in \phi radiative decays
20 pages, 6 figures. One reference is corrected. Version to be published in Nuclear Physics A
Nucl.Phys.A714:161-182,2003
10.1016/S0375-9474(02)01360-X
null
hep-ph hep-ex nucl-th
null
The decay widths \phi \to \gamma f_0(980) and \phi \to \gamma a_0(980) are calculated taking into account the finite widths of the scalar resonances f_0(980) and a_0(980). The latter are shown to be essential in order to obtain meaningful results. Simultaneously we also study the decays \phi\to \gamma \pi^0\pi^0 and ...
[ { "created": "Mon, 13 May 2002 10:44:20 GMT", "version": "v1" }, { "created": "Fri, 24 May 2002 13:26:30 GMT", "version": "v2" }, { "created": "Mon, 11 Nov 2002 15:10:15 GMT", "version": "v3" } ]
2008-11-26
[ [ "Oller", "Jose A.", "" ] ]
The decay widths \phi \to \gamma f_0(980) and \phi \to \gamma a_0(980) are calculated taking into account the finite widths of the scalar resonances f_0(980) and a_0(980). The latter are shown to be essential in order to obtain meaningful results. Simultaneously we also study the decays \phi\to \gamma \pi^0\pi^0 and \g...
1702.06145
Farinaldo Queiroz
Miguel D. Campos, Farinaldo S. Queiroz, Carlos E. Yaguna, Christoph Weniger
Search for right-handed neutrinos from dark matter annihilation with gamma-rays
19 pages, 7 figures. It matches the version published in JCAP
null
10.1088/1475-7516/2017/07/016
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Several extensions of the Standard Model contain right-handed (sterile) neutrinos in the GeV-TeV mass range. Due to their mixing with the active neutrinos, they may give rise to novel effects in cosmology, neutrino physics, and collider searches. In addition, right-handed neutrinos can also appear as final states fro...
[ { "created": "Mon, 20 Feb 2017 19:13:14 GMT", "version": "v1" }, { "created": "Fri, 13 Oct 2017 10:25:21 GMT", "version": "v2" } ]
2017-10-16
[ [ "Campos", "Miguel D.", "" ], [ "Queiroz", "Farinaldo S.", "" ], [ "Yaguna", "Carlos E.", "" ], [ "Weniger", "Christoph", "" ] ]
Several extensions of the Standard Model contain right-handed (sterile) neutrinos in the GeV-TeV mass range. Due to their mixing with the active neutrinos, they may give rise to novel effects in cosmology, neutrino physics, and collider searches. In addition, right-handed neutrinos can also appear as final states from ...
1705.05430
Gero von Gersdorff
Gero von Gersdorff
Natural Fermion Hierarchies from Random Yukawa Couplings
9 pages. v2: Extended and improved discussion on CKM matrix. References added. Matches published version
null
10.1007/JHEP09(2017)094
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Standard Model of particle physics requires Yukawa matrices with eigenval- ues that differ by orders of magnitude. We propose a novel way to explain this fact without any small or large parameters. The mechanism is based on the observation that products of matrices of random order one-numbers have hierarchical sp...
[ { "created": "Mon, 15 May 2017 20:13:04 GMT", "version": "v1" }, { "created": "Mon, 21 Aug 2017 15:52:16 GMT", "version": "v2" } ]
2017-10-25
[ [ "von Gersdorff", "Gero", "" ] ]
The Standard Model of particle physics requires Yukawa matrices with eigenval- ues that differ by orders of magnitude. We propose a novel way to explain this fact without any small or large parameters. The mechanism is based on the observation that products of matrices of random order one-numbers have hierarchical spec...
1105.0334
Yin Jia
Bo Feng, Yin Jia, Rijun Huang
Relations of loop partial amplitudes in gauge theory by Unitarity cut method
35pages; v2:reference added and minor correction; v3; v4: to appear in NPB
null
10.1016/j.nuclphysb.2011.08.024
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is well known that under the color-decomposition, one-loop amplitude of gluons contains partial amplitudes of single and double trace structures, and particularly all partial amplitudes of double trace structure can be expressed as a linear combination of partial amplitudes of single trace structure. Using unitari...
[ { "created": "Mon, 2 May 2011 14:00:21 GMT", "version": "v1" }, { "created": "Sun, 5 Jun 2011 14:02:57 GMT", "version": "v2" }, { "created": "Fri, 5 Aug 2011 11:23:13 GMT", "version": "v3" }, { "created": "Fri, 26 Aug 2011 13:05:08 GMT", "version": "v4" } ]
2015-05-28
[ [ "Feng", "Bo", "" ], [ "Jia", "Yin", "" ], [ "Huang", "Rijun", "" ] ]
It is well known that under the color-decomposition, one-loop amplitude of gluons contains partial amplitudes of single and double trace structures, and particularly all partial amplitudes of double trace structure can be expressed as a linear combination of partial amplitudes of single trace structure. Using unitarity...
hep-ph/9410307
null
Howard Georgi, Lev Kaplan, David Morin, Andreas Schenk
Effects of Top Compositeness
LaTeX 18pp., PicTeX, PrePicTex, PostPicTex required for three figures
Phys.Rev.D51:3888-3894,1995
10.1103/PhysRevD.51.3888
HUTP-94/A035
hep-ph
null
We investigate the effects of top quark compositeness on various physical parameters, and obtain lower limits on the compositeness scale from electroweak precision data. We consider corrections to top quark decay rates and other physical processes. Our results depend sensitively on whether the left-handed top is comp...
[ { "created": "Mon, 17 Oct 1994 22:02:26 GMT", "version": "v1" }, { "created": "Fri, 13 Jan 1995 03:01:13 GMT", "version": "v2" } ]
2009-09-11
[ [ "Georgi", "Howard", "" ], [ "Kaplan", "Lev", "" ], [ "Morin", "David", "" ], [ "Schenk", "Andreas", "" ] ]
We investigate the effects of top quark compositeness on various physical parameters, and obtain lower limits on the compositeness scale from electroweak precision data. We consider corrections to top quark decay rates and other physical processes. Our results depend sensitively on whether the left-handed top is compos...
1709.08072
Xing-Gang Wu
Bo-Lun Du, Xing-Gang Wu, Jun Zeng, Shi Bu, Jian-Ming Shen
Reconsideration of the QCD corrections to the $\eta_c$ decays into light hadrons using the principle of maximum conformality
5 pages, 2 figures
Eur. Phys. J. C78 (2018) 61
10.1140/epjc/s10052-018-5560-3
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the paper, we analyze the $\eta_c$ decays into light hadrons at the next-to-leading order QCD corrections by applying the principle of maximum conformality (PMC). The relativistic correction at the ${\cal{O}}(\alpha_s v^2)$-order level has been included in the discussion, which gives about $10\%$ contribution to t...
[ { "created": "Sat, 23 Sep 2017 16:22:15 GMT", "version": "v1" } ]
2018-01-30
[ [ "Du", "Bo-Lun", "" ], [ "Wu", "Xing-Gang", "" ], [ "Zeng", "Jun", "" ], [ "Bu", "Shi", "" ], [ "Shen", "Jian-Ming", "" ] ]
In the paper, we analyze the $\eta_c$ decays into light hadrons at the next-to-leading order QCD corrections by applying the principle of maximum conformality (PMC). The relativistic correction at the ${\cal{O}}(\alpha_s v^2)$-order level has been included in the discussion, which gives about $10\%$ contribution to the...
1412.2146
Ian Low
Ian Low
A Minimally Symmetric Higgs Boson
17 pages, no figure; v2: minor changes; matched to the published version
Phys. Rev. D 91, 116005 (2015)
10.1103/PhysRevD.91.116005
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Models addressing the naturalness of a light Higgs boson typically employ symmetries, either bosonic or fermionic, to stabilize the Higgs mass. We consider a setup with the minimal amount of symmetries: four shift symmetries acting on the four components of the Higgs doublet, subject to the constraints of linearly re...
[ { "created": "Fri, 5 Dec 2014 21:21:49 GMT", "version": "v1" }, { "created": "Wed, 10 Jun 2015 16:09:27 GMT", "version": "v2" } ]
2015-06-24
[ [ "Low", "Ian", "" ] ]
Models addressing the naturalness of a light Higgs boson typically employ symmetries, either bosonic or fermionic, to stabilize the Higgs mass. We consider a setup with the minimal amount of symmetries: four shift symmetries acting on the four components of the Higgs doublet, subject to the constraints of linearly real...
2109.04050
Venkata Suryanarayana Mummidi
V. Suryanarayana Mummidi, Ketan M. Patel
Leptogenesis and fermion mass fit in a renormalizable $SO(10)$ model
26 pages, 4 captioned figures, 2 tables; a reference and a few explanatory sentences are added;Published version
JHEP 12 (2021) 042
10.1007/JHEP12(2021)042
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
A non-supersymmetric renormalizable $SO(10)$ model is investigated for its viability in explaining the observed fermion masses and mixing parameters along with the baryon asymmetry produced via thermal leptogenesis. The Yukawa sector of the model consists of complex $10_H$ and $\overline{126}_H$ scalars with a Peccei...
[ { "created": "Thu, 9 Sep 2021 06:11:35 GMT", "version": "v1" }, { "created": "Thu, 9 Dec 2021 04:15:57 GMT", "version": "v2" } ]
2021-12-10
[ [ "Mummidi", "V. Suryanarayana", "" ], [ "Patel", "Ketan M.", "" ] ]
A non-supersymmetric renormalizable $SO(10)$ model is investigated for its viability in explaining the observed fermion masses and mixing parameters along with the baryon asymmetry produced via thermal leptogenesis. The Yukawa sector of the model consists of complex $10_H$ and $\overline{126}_H$ scalars with a Peccei-Q...
hep-ph/9811277
null
Thomas R. Hemmert, Ulf-G. Meissner and Sven Steininger (Forschungszentrum Juelich)
Strange Magnetism
4 pages LateX, 2 figures, uses Baryons98 style file. Talk given at Baryons 98, Bonn, Sept. 22-26, 1998
null
null
null
hep-ph
null
We present an analytic and parameter-free expression for the momentum dependence of the strange magnetic form factor of the nucleon and its corresponding radius which has been derived in Heavy Baryon Chiral Perturbation Theory. We also discuss a model-independent relation between the isoscalar magnetic and the strang...
[ { "created": "Mon, 9 Nov 1998 15:25:59 GMT", "version": "v1" } ]
2007-05-23
[ [ "Hemmert", "Thomas R.", "", "Forschungszentrum Juelich" ], [ "Meissner", "Ulf-G.", "", "Forschungszentrum Juelich" ], [ "Steininger", "Sven", "", "Forschungszentrum Juelich" ] ]
We present an analytic and parameter-free expression for the momentum dependence of the strange magnetic form factor of the nucleon and its corresponding radius which has been derived in Heavy Baryon Chiral Perturbation Theory. We also discuss a model-independent relation between the isoscalar magnetic and the strange ...
2408.07046
Carsten Schneider
J Bl\"umlein, A. De Freitas, P. Marquard, C. Schneider
Challenges for analytic calculations of the massive three-loop form factors
null
null
null
DESY-24-121, RISC Report number 24-05, PoS (LL2024) 031
hep-ph cs.SC
http://creativecommons.org/licenses/by/4.0/
The calculation of massive three-loop QCD form factors using in particular the large moments method has been successfully applied to quarkonic contributions in [1]. We give a brief review of the different steps of the calculation and report on improvements of our methods that enabled us to push forward the calculatio...
[ { "created": "Tue, 13 Aug 2024 17:21:00 GMT", "version": "v1" } ]
2024-08-14
[ [ "Blümlein", "J", "" ], [ "De Freitas", "A.", "" ], [ "Marquard", "P.", "" ], [ "Schneider", "C.", "" ] ]
The calculation of massive three-loop QCD form factors using in particular the large moments method has been successfully applied to quarkonic contributions in [1]. We give a brief review of the different steps of the calculation and report on improvements of our methods that enabled us to push forward the calculations...
1602.02782
Nausheen Shah
Stefania Gori, Ian-Woo Kim, Nausheen R. Shah and Kathryn M. Zurek
Closing the Wedge: Search Strategies for Extended Higgs Sectors with Heavy Flavor Final States
Added a Fig. and updated references. Matches journal version. 31 pages, 11 figures
Phys. Rev. D 93, 075038 (2016)
10.1103/PhysRevD.93.075038
WSU-HEP-1508
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider search strategies for an extended Higgs sector at the high-luminosity LHC14 utilizing multi-top final states. In the framework of a Two Higgs Doublet Model, the purely top final states ($t\bar t, \, 4t$) are important channels for heavy Higgs bosons with masses in the wedge above $2\,m_t$ and at low value...
[ { "created": "Mon, 8 Feb 2016 21:02:52 GMT", "version": "v1" }, { "created": "Tue, 29 Mar 2016 14:58:04 GMT", "version": "v2" } ]
2016-05-04
[ [ "Gori", "Stefania", "" ], [ "Kim", "Ian-Woo", "" ], [ "Shah", "Nausheen R.", "" ], [ "Zurek", "Kathryn M.", "" ] ]
We consider search strategies for an extended Higgs sector at the high-luminosity LHC14 utilizing multi-top final states. In the framework of a Two Higgs Doublet Model, the purely top final states ($t\bar t, \, 4t$) are important channels for heavy Higgs bosons with masses in the wedge above $2\,m_t$ and at low values ...
0908.1768
Jason Kumar
Jason Kumar, John G. Learned and Stefanie Smith
Light Dark Matter Detection Prospects at Neutrino Experiments
13 pages, 2 figures, pdflatex, references, one figure and comments on electron neutrino bounds and on spin-dependent scattering limits added. Figures updated.
Phys.Rev.D80:113002,2009
10.1103/PhysRevD.80.113002
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the prospects for the detection of relatively light dark matter through direct annihilation to neutrinos. We specifically focus on the detection possibilities of water Cherenkov and liquid scintillator neutrino detection devices. We find in particular that liquid scintillator detectors may potentially pro...
[ { "created": "Wed, 12 Aug 2009 18:22:36 GMT", "version": "v1" }, { "created": "Thu, 27 Aug 2009 20:35:12 GMT", "version": "v2" }, { "created": "Sun, 8 Nov 2009 00:10:21 GMT", "version": "v3" }, { "created": "Tue, 12 Jan 2010 06:33:49 GMT", "version": "v4" }, { "cr...
2010-04-30
[ [ "Kumar", "Jason", "" ], [ "Learned", "John G.", "" ], [ "Smith", "Stefanie", "" ] ]
We consider the prospects for the detection of relatively light dark matter through direct annihilation to neutrinos. We specifically focus on the detection possibilities of water Cherenkov and liquid scintillator neutrino detection devices. We find in particular that liquid scintillator detectors may potentially provi...
1409.8483
Carlo Ewerz
Arthur Bolz, Carlo Ewerz, Markos Maniatis, Otto Nachtmann, Michel Sauter, Andre Schoning
Photoproduction of pi+ pi- pairs in a model with tensor-pomeron and vector-odderon exchange
49 pages
null
10.1007/JHEP01(2015)151
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the reaction (gamma p) to (pi+ pi- p) at high energies. Our description includes dipion production via the resonances rho, omega, rho-prime and f2, and via non-resonant mechanisms. The calculation is based on a model of high energy scattering with the exchanges of photon, pomeron, odderon and reggeons. Th...
[ { "created": "Tue, 30 Sep 2014 11:10:06 GMT", "version": "v1" } ]
2015-06-23
[ [ "Bolz", "Arthur", "" ], [ "Ewerz", "Carlo", "" ], [ "Maniatis", "Markos", "" ], [ "Nachtmann", "Otto", "" ], [ "Sauter", "Michel", "" ], [ "Schoning", "Andre", "" ] ]
We consider the reaction (gamma p) to (pi+ pi- p) at high energies. Our description includes dipion production via the resonances rho, omega, rho-prime and f2, and via non-resonant mechanisms. The calculation is based on a model of high energy scattering with the exchanges of photon, pomeron, odderon and reggeons. The ...
0902.1949
Christopher Smith
Lorenzo Mercolli and Christopher Smith
EDM constraints on flavored CP-violating phases
Latex, 24 pages, 2 figures. Minor changes; one reference added. To appear in Nucl. Phys. B
Nucl.Phys.B817:1-24,2009
10.1016/j.nuclphysb.2009.03.010
TTP09-04, SFB/CPP-09-18
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The CP-violating phenomenology of the MSSM with Minimal Flavor Violation (MFV) in the lepton sector is revisited. To this end, the most general parametrizations of the slepton soft-breaking terms are constructed assuming a seesaw mechanism of type I. After a critical reassessment of how the CP-symmetry is broken with...
[ { "created": "Wed, 11 Feb 2009 17:46:50 GMT", "version": "v1" }, { "created": "Thu, 26 Mar 2009 16:40:55 GMT", "version": "v2" } ]
2014-11-18
[ [ "Mercolli", "Lorenzo", "" ], [ "Smith", "Christopher", "" ] ]
The CP-violating phenomenology of the MSSM with Minimal Flavor Violation (MFV) in the lepton sector is revisited. To this end, the most general parametrizations of the slepton soft-breaking terms are constructed assuming a seesaw mechanism of type I. After a critical reassessment of how the CP-symmetry is broken within...
hep-ph/0603026
Andrea Zanzi
Andrea Zanzi (Padua U. & INFN, Padua)
Neutrino Dark Energy and Moduli Stabilization in a BPS Braneworld Scenario
26 pages, 1 EPS figure
Phys.Rev. D73 (2006) 124010
10.1103/PhysRevD.73.124010
DFPD/06/TH/04
hep-ph hep-th
null
A braneworld model for neutrino Dark Energy (DE) is presented. We consider a five dimensional two-branes set up with a bulk scalar field motivated by supergravity. Its low-energy effective theory is derived with a moduli space approximation (MSA). The position of the two branes are parametrized by two scalar degrees ...
[ { "created": "Fri, 3 Mar 2006 13:38:14 GMT", "version": "v1" } ]
2009-09-29
[ [ "Zanzi", "Andrea", "", "Padua U. & INFN, Padua" ] ]
A braneworld model for neutrino Dark Energy (DE) is presented. We consider a five dimensional two-branes set up with a bulk scalar field motivated by supergravity. Its low-energy effective theory is derived with a moduli space approximation (MSA). The position of the two branes are parametrized by two scalar degrees of...
2004.07551
Krzysztof Marek Kutak
H. Van Haevermaet, A. Van Hameren, P. Kotko, K. Kutak, P. Van Mechelen
Trijets in kt-factorisation: matrix elements vs parton shower
10 pages. Published version
null
10.1140/epjc/s10052-020-8193-2
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study 3-jet event topologies in proton-proton collisions at a centre-of-mass energy of $\sqrt{s} = 13 {\rm\ TeV}$ in a configuration, where one jet is present in the central pseudorapidity region ($|\eta| < 2.0$) while two other jets are in a more forward (same hemisphere) area ($|\eta| > 2.0$). We compare various...
[ { "created": "Thu, 16 Apr 2020 09:43:56 GMT", "version": "v1" }, { "created": "Thu, 30 Jul 2020 08:21:43 GMT", "version": "v2" } ]
2020-08-26
[ [ "Van Haevermaet", "H.", "" ], [ "Van Hameren", "A.", "" ], [ "Kotko", "P.", "" ], [ "Kutak", "K.", "" ], [ "Van Mechelen", "P.", "" ] ]
We study 3-jet event topologies in proton-proton collisions at a centre-of-mass energy of $\sqrt{s} = 13 {\rm\ TeV}$ in a configuration, where one jet is present in the central pseudorapidity region ($|\eta| < 2.0$) while two other jets are in a more forward (same hemisphere) area ($|\eta| > 2.0$). We compare various p...
hep-ph/9404304
null
D.P.Roy
Search for the Invisibly Decaying Higgs Particle at LEP and the LHC
5 Pages + 3 figures available on request, CERN-TH.7221/94
null
null
null
hep-ph
null
The Higgs particle can have dominantly invisible decay in a large class of Majoron models as well as some SUSY models. The LEP signal and mass limit for a Higgs particle undergoing invisible decay are explored. They are found to be very similar to those for the standard model decay. The best signatures and discovery ...
[ { "created": "Wed, 20 Apr 1994 12:15:02 GMT", "version": "v1" } ]
2009-09-25
[ [ "Roy", "D. P.", "" ] ]
The Higgs particle can have dominantly invisible decay in a large class of Majoron models as well as some SUSY models. The LEP signal and mass limit for a Higgs particle undergoing invisible decay are explored. They are found to be very similar to those for the standard model decay. The best signatures and discovery li...
hep-ph/0309111
Thomas D. COhen
Thomas D. Cohen
Chiral soliton models, large N_c consistency and the Theta^+ exotic baryon
5 pages, 1 figure. This is the version to be published; minor typos have been corrected and a reference added
Phys.Lett. B581 (2004) 175-181
10.1016/j.physletb.2003.11.065
null
hep-ph nucl-th
null
Predictions for a light collective $\Theta^+$ baryon state (with strangeness +1) based on the collective quantization of chiral soliton models are shown to be inconsistent with large $N_c$ QCD. The lightest strangeness +1 state to emerge from the analysis has an excitation energy which at large $N_c$ scales as $N_c^0...
[ { "created": "Wed, 10 Sep 2003 14:08:23 GMT", "version": "v1" }, { "created": "Wed, 17 Sep 2003 15:12:01 GMT", "version": "v2" }, { "created": "Wed, 26 Nov 2003 13:00:59 GMT", "version": "v3" } ]
2009-11-10
[ [ "Cohen", "Thomas D.", "" ] ]
Predictions for a light collective $\Theta^+$ baryon state (with strangeness +1) based on the collective quantization of chiral soliton models are shown to be inconsistent with large $N_c$ QCD. The lightest strangeness +1 state to emerge from the analysis has an excitation energy which at large $N_c$ scales as $N_c^0$ ...
hep-ph/0309309
Oscar Wallace Greenberg
O.W. Greenberg
Why is CPT fundamental?
17 pages, no figures
Found.Phys. 36 (2006) 1535-1553
10.1007/s10701-006-9070-z
University of Maryland Preprint PP-04004
hep-ph hep-th nucl-th
null
G. L\"uders and W. Pauli proved the $\mathcal{CPT}$ theorem based on Lagrangian quantum field theory almost half a century ago. R. Jost gave a more general proof based on ``axiomatic'' field theory nearly as long ago. The axiomatic point of view has two advantages over the Lagrangian one. First, the axiomatic point o...
[ { "created": "Fri, 26 Sep 2003 19:14:33 GMT", "version": "v1" } ]
2009-11-10
[ [ "Greenberg", "O. W.", "" ] ]
G. L\"uders and W. Pauli proved the $\mathcal{CPT}$ theorem based on Lagrangian quantum field theory almost half a century ago. R. Jost gave a more general proof based on ``axiomatic'' field theory nearly as long ago. The axiomatic point of view has two advantages over the Lagrangian one. First, the axiomatic point of ...
hep-ph/0006134
Burkhard Kaempfer
K. Gallmeister, B. Kampfer, O.P. Pavlenko
A unique large thermal source of real and virtual photons in the reactions Pb(158 AGeV) + Pb, Au
11 pages including figures
Phys.Rev.C62:057901,2000
10.1103/PhysRevC.62.057901
null
hep-ph
null
The data of direct single-photon measurements of the WA98 collaboration in the reaction Pb(158 AGeV) + Pb are analyzed within a thermal model with a minimum number of parameters adjusted to the dilepton data obtained by the CERES and NA50 collaborations in the reactions Pb(158 AGeV) + Au, Pb. The agreement of our mod...
[ { "created": "Tue, 13 Jun 2000 13:27:12 GMT", "version": "v1" } ]
2009-09-25
[ [ "Gallmeister", "K.", "" ], [ "Kampfer", "B.", "" ], [ "Pavlenko", "O. P.", "" ] ]
The data of direct single-photon measurements of the WA98 collaboration in the reaction Pb(158 AGeV) + Pb are analyzed within a thermal model with a minimum number of parameters adjusted to the dilepton data obtained by the CERES and NA50 collaborations in the reactions Pb(158 AGeV) + Au, Pb. The agreement of our model...
1503.05126
Jarah Evslin
Emilio Ciuffoli, Jarah Evslin, Marco Grassi and Xinmin Zhang
Measuring theta12 Despite an Uncertain Reactor Neutrino Spectrum
8 pages, 2 eps figures, v3: Refs added
Nucl.Phys. B903 (2016) 1-9
10.1016/j.nuclphysb.2015.11.021
null
hep-ph physics.ins-det
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The recently discovered 5 MeV bump highlights that the uncertainty in the reactor neutrino spectrum is far greater than some theoretical estimates. Medium baseline reactor neutrino experiments will deliver by far the most precise ever measurements of theta12. However, as a result of the bump, such a determination of ...
[ { "created": "Tue, 17 Mar 2015 17:10:34 GMT", "version": "v1" }, { "created": "Sat, 30 May 2015 09:13:21 GMT", "version": "v2" }, { "created": "Tue, 16 Jun 2015 17:14:57 GMT", "version": "v3" } ]
2017-04-27
[ [ "Ciuffoli", "Emilio", "" ], [ "Evslin", "Jarah", "" ], [ "Grassi", "Marco", "" ], [ "Zhang", "Xinmin", "" ] ]
The recently discovered 5 MeV bump highlights that the uncertainty in the reactor neutrino spectrum is far greater than some theoretical estimates. Medium baseline reactor neutrino experiments will deliver by far the most precise ever measurements of theta12. However, as a result of the bump, such a determination of th...
1701.06574
Yann Mambrini
Karim Benakli, Yifan Chen, Emilian Dudas, Yann Mambrini
A Minimal Model of Gravitino Dark Matter
9 pages, 2 figures, published version (references added)
Phys. Rev. D 95, 095002 (2017)
10.1103/PhysRevD.95.095002
null
hep-ph astro-ph.HE hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by the absence of signals of new physics in both searches for new particles at LHC and for a Weakly Interacting Massive Particle (WIMP) dark matter candidate, we consider a scenario where supersymmetry is broken at a scale above the reheating temperature. The low energy particle content consists then only i...
[ { "created": "Mon, 23 Jan 2017 19:00:03 GMT", "version": "v1" }, { "created": "Wed, 22 Mar 2017 14:53:19 GMT", "version": "v2" } ]
2017-05-10
[ [ "Benakli", "Karim", "" ], [ "Chen", "Yifan", "" ], [ "Dudas", "Emilian", "" ], [ "Mambrini", "Yann", "" ] ]
Motivated by the absence of signals of new physics in both searches for new particles at LHC and for a Weakly Interacting Massive Particle (WIMP) dark matter candidate, we consider a scenario where supersymmetry is broken at a scale above the reheating temperature. The low energy particle content consists then only in ...
0910.5957
Mattias Blennow
Stefan Antusch, Steve Blanchet, Mattias Blennow, Enrique Fernandez-Martinez
Non-unitary Leptonic Mixing and Leptogenesis
19 pages, REVTeX4, 2 eps and 2 axodraw figures
JHEP 1001:017,2010
10.1007/JHEP01(2010)017
MPP-2009-175, UMD-PP-09-056
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the relation between non-unitarity of the leptonic mixing matrix and leptogenesis. We discuss how all parameters of the canonical type-I seesaw mechanism can, in principle, be reconstructed from the neutrino mass matrix and the deviation of the effective low-energy leptonic mixing matrix from unitary. ...
[ { "created": "Fri, 30 Oct 2009 20:00:01 GMT", "version": "v1" }, { "created": "Mon, 2 Nov 2009 17:46:39 GMT", "version": "v2" } ]
2011-05-23
[ [ "Antusch", "Stefan", "" ], [ "Blanchet", "Steve", "" ], [ "Blennow", "Mattias", "" ], [ "Fernandez-Martinez", "Enrique", "" ] ]
We investigate the relation between non-unitarity of the leptonic mixing matrix and leptogenesis. We discuss how all parameters of the canonical type-I seesaw mechanism can, in principle, be reconstructed from the neutrino mass matrix and the deviation of the effective low-energy leptonic mixing matrix from unitary. Wh...
0803.3392
Kausik Pal
Kausik Pal
Pionic contribution to relativistic Fermi Liquid parameters
6 pages, 2 figures, Published in Canadian Journal of Physics, vol. 88, issue 8, pp. 585-590
Can.J.Phys.88:585-590,2010
10.1139/P10-044
null
hep-ph astro-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate pionic contribution to the relativistic Fermi Liquid parameters (RFLPs) using Chiral Effective Lagrangian. The RFLPs so determined are then used to calculate chemical potential, exchange and nuclear symmetry energies due to $\pi$$N$ interaction. We also evaluate two loop ring diagrams involving $\sigma$,...
[ { "created": "Mon, 24 Mar 2008 11:33:01 GMT", "version": "v1" }, { "created": "Wed, 1 Sep 2010 06:23:19 GMT", "version": "v2" } ]
2011-04-07
[ [ "Pal", "Kausik", "" ] ]
We calculate pionic contribution to the relativistic Fermi Liquid parameters (RFLPs) using Chiral Effective Lagrangian. The RFLPs so determined are then used to calculate chemical potential, exchange and nuclear symmetry energies due to $\pi$$N$ interaction. We also evaluate two loop ring diagrams involving $\sigma$, $...
hep-ph/0104153
Stanley J. Brodsky
Stanley J. Brodsky (SLAC)
QCD Aspects of Exclusive B Decays
Invited talk presented at the 4th International Conference on B Physics and CP Violation (BCP4), Ago Town, Mie Prefecture, Japan, February 19-23, 2001
null
10.1142/9789812811219_0050
SLAC-PUB-8809
hep-ph
null
Exclusive B decays can be factorized as convolutions of hard scattering amplitudes involving the weak interaction with universal hadron distribution amplitudes, thus providing a new QCD-based phenomenology. In addition, semi-leptonic decay amplitudes can be computed exactly in terms of the diagonal and off-diagonal o...
[ { "created": "Mon, 16 Apr 2001 21:22:25 GMT", "version": "v1" } ]
2016-11-23
[ [ "Brodsky", "Stanley J.", "", "SLAC" ] ]
Exclusive B decays can be factorized as convolutions of hard scattering amplitudes involving the weak interaction with universal hadron distribution amplitudes, thus providing a new QCD-based phenomenology. In addition, semi-leptonic decay amplitudes can be computed exactly in terms of the diagonal and off-diagonal ove...
hep-ph/9805329
Rogerio Rosenfeld
Alfonso R. Zerwekh and Rogerio Rosenfeld (IFT - Sao Paulo)
Limits on a Strong Electroweak Sector from e^+ e^- -> 2gamma + missing E at LEP2
7 pages, Latex, one figure
Mod.Phys.Lett.A14:35-42,1999
10.1142/S0217732399000067
IFT-P.027/98
hep-ph
null
We study the process $e^+ e^- \to \gamma \gamma \nu \bar{\nu}$ in the context of a strong electroweak symmetry breaking model, which can be a source of events with two photons and missing energy at LEP2. We investigate bounds on the model assuming that no deviation is observed from the Standard Model within a given e...
[ { "created": "Thu, 14 May 1998 19:37:05 GMT", "version": "v1" } ]
2011-08-17
[ [ "Zerwekh", "Alfonso R.", "", "IFT - Sao Paulo" ], [ "Rosenfeld", "Rogerio", "", "IFT - Sao Paulo" ] ]
We study the process $e^+ e^- \to \gamma \gamma \nu \bar{\nu}$ in the context of a strong electroweak symmetry breaking model, which can be a source of events with two photons and missing energy at LEP2. We investigate bounds on the model assuming that no deviation is observed from the Standard Model within a given exp...
2405.04454
Suro Kim
Suro Kim, Pyungwon Ko
Constraining Millicharged dark matter with Gravitational positivity bounds
15 pages, 6 figures
null
null
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Gravitational positivity bounds provide consistency conditions for effective field theories with gravity. They turn out to be phenomenologically useful by providing lower bounds in parameters of new physics beyond the Standard Models (BSM). In this paper, we derive constraints on millicharged fermion dark matter mode...
[ { "created": "Tue, 7 May 2024 16:16:08 GMT", "version": "v1" }, { "created": "Wed, 22 May 2024 04:28:15 GMT", "version": "v2" } ]
2024-05-24
[ [ "Kim", "Suro", "" ], [ "Ko", "Pyungwon", "" ] ]
Gravitational positivity bounds provide consistency conditions for effective field theories with gravity. They turn out to be phenomenologically useful by providing lower bounds in parameters of new physics beyond the Standard Models (BSM). In this paper, we derive constraints on millicharged fermion dark matter models...
1006.3804
Ernest Ma
Ernest Ma (UC Riverside)
Dark Left-Right Model: CDMS, LHC, etc
7 pages, 4 figures, typo corrected, talk at Dark Side of Universe 2010, Leon, Mexico
J.Phys.Conf.Ser.315:012006,2011
10.1088/1742-6596/315/1/012006
UCRHEP-T493 (June 2010)
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Standard Model of particle interactions is extended to include fermion doublets (n,e)_R transforming under the gauge group SU(2)_R such that n is a Dirac scotino (dark-matter fermion), with odd R parity. Based on recent CDMS data, it is shown how this new dark left-right model (DLRM2) favors a Z' gauge boson at a...
[ { "created": "Fri, 18 Jun 2010 20:28:58 GMT", "version": "v1" }, { "created": "Tue, 29 Jun 2010 16:24:16 GMT", "version": "v2" } ]
2011-08-25
[ [ "Ma", "Ernest", "", "UC Riverside" ] ]
The Standard Model of particle interactions is extended to include fermion doublets (n,e)_R transforming under the gauge group SU(2)_R such that n is a Dirac scotino (dark-matter fermion), with odd R parity. Based on recent CDMS data, it is shown how this new dark left-right model (DLRM2) favors a Z' gauge boson at aro...
1812.03182
Inbar Savoray
Sebastian J\"ager, Sandra Kvedarait\.e, Gilad Perez and Inbar Savoray
Bounds and Prospects for Stable Multiply Charged Particles at the LHC
null
J. High Energ. Phys. (2019) 2019: 41
10.1007/JHEP04(2019)041
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Colored and colorless particles that are stable on collider scales and carry exotic electric charges, so-called multiply-charged heavy stable particles (MCHSPs), exist in extensions of the Standard Model, and can include the top partner(s) in solutions of the hierarchy problem. To obtain bounds on color-triplets and ...
[ { "created": "Fri, 7 Dec 2018 19:00:30 GMT", "version": "v1" }, { "created": "Sun, 7 Apr 2019 16:32:43 GMT", "version": "v2" } ]
2019-04-09
[ [ "Jäger", "Sebastian", "" ], [ "Kvedaraitė", "Sandra", "" ], [ "Perez", "Gilad", "" ], [ "Savoray", "Inbar", "" ] ]
Colored and colorless particles that are stable on collider scales and carry exotic electric charges, so-called multiply-charged heavy stable particles (MCHSPs), exist in extensions of the Standard Model, and can include the top partner(s) in solutions of the hierarchy problem. To obtain bounds on color-triplets and co...
hep-ph/9411215
Hai-Yang Cheng
Hai-Yang Cheng and B. Tseng
The $\Lambda_b\to J/\psi+\Lambda$ Decay Revisited
7 pages
null
null
IP-ASTP-22-94
hep-ph
null
The $\b$ decay does not receive any nonspectator contributions and hence its theoretical calculation is relatively clean. Two different methods are employed for the study of $\b$. In the first method, both $b$ and $s$ quarks are treated as heavy and leading $1/m_s$ as well as $1/m_b$ corrections are included. The bra...
[ { "created": "Thu, 3 Nov 1994 08:04:15 GMT", "version": "v1" } ]
2007-05-23
[ [ "Cheng", "Hai-Yang", "" ], [ "Tseng", "B.", "" ] ]
The $\b$ decay does not receive any nonspectator contributions and hence its theoretical calculation is relatively clean. Two different methods are employed for the study of $\b$. In the first method, both $b$ and $s$ quarks are treated as heavy and leading $1/m_s$ as well as $1/m_b$ corrections are included. The branc...
hep-ph/0305077
Thomas G. Rizzo
Thomas.G. Rizzo
Kaluza-Klein/$Z'$ Differentiation at the LHC and Linear Collider
19 pages, 7 Figs, LaTex, minor corrections/additions to text
JHEP 0306 (2003) 021
10.1088/1126-6708/2003/06/021
SLAC-PUB-9731
hep-ph hep-ex
null
We explore the capabilities of the LHC and the Linear Collider(LC) to distinguish the production of Kaluza-Klein(KK) excitations from an ordinary $Z'$ within the context of theories with TeV scale extra dimensions. At the LHC, these states are directly produced in the Drell-Yan channel while at the LC the effects of ...
[ { "created": "Wed, 7 May 2003 22:37:21 GMT", "version": "v1" }, { "created": "Mon, 9 Jun 2003 18:48:18 GMT", "version": "v2" } ]
2009-11-10
[ [ "Rizzo", "Thomas. G.", "" ] ]
We explore the capabilities of the LHC and the Linear Collider(LC) to distinguish the production of Kaluza-Klein(KK) excitations from an ordinary $Z'$ within the context of theories with TeV scale extra dimensions. At the LHC, these states are directly produced in the Drell-Yan channel while at the LC the effects of th...
hep-ph/0309073
Alejandro Daleo
A. Daleo (Univ. of La Plata) and R. Sassot (Univ. of Buenos Aires)
Next to leading order evolution of SIDIS processes in the forward region
18 pages, 4 ps figures, uses revtex4 and feynmf. Accepted for publication in Nuclear Physics B
Nucl.Phys. B673 (2003) 357-384
10.1016/j.nuclphysb.2003.09.007
null
hep-ph
null
We compute the order $\alpha_s^2$ quark initiated corrections to semi-inclusive deep inelastic scattering extending the approach developed recently for the gluon contributions. With these corrections we complete the order $\alpha_s^2$ QCD description of these processes, verifying explicitly the factorization of colli...
[ { "created": "Mon, 8 Sep 2003 14:21:10 GMT", "version": "v1" } ]
2015-06-25
[ [ "Daleo", "A.", "", "Univ. of La Plata" ], [ "Sassot", "R.", "", "Univ. of Buenos Aires" ] ]
We compute the order $\alpha_s^2$ quark initiated corrections to semi-inclusive deep inelastic scattering extending the approach developed recently for the gluon contributions. With these corrections we complete the order $\alpha_s^2$ QCD description of these processes, verifying explicitly the factorization of colline...
0905.2810
Ulf-G. Mei{\ss}ner
Maxim Mai, Peter C. Bruns, Bastian Kubis, Ulf-G. Mei{\ss}ner
Aspects of meson-baryon scattering in three- and two-flavor chiral perturbation theory
22 pages, 5 figures, version published in Phys. Rev. D
Phys. Rev. D 80, 094006 (2009)
10.1103/PhysRevD.80.094006
HISKP-TH-09/12, FZJ-IKP-TH-2009-10
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze meson-baryon scattering lengths in the framework of covariant baryon chiral perturbation theory at leading one-loop order. We compute the complete set of matching relations between the dimension-two low-energy constants in the two- and three-flavor formulations of the theory. We derive new two-flavor low-e...
[ { "created": "Mon, 18 May 2009 06:15:34 GMT", "version": "v1" }, { "created": "Tue, 10 Nov 2009 09:00:33 GMT", "version": "v2" } ]
2009-11-10
[ [ "Mai", "Maxim", "" ], [ "Bruns", "Peter C.", "" ], [ "Kubis", "Bastian", "" ], [ "Meißner", "Ulf-G.", "" ] ]
We analyze meson-baryon scattering lengths in the framework of covariant baryon chiral perturbation theory at leading one-loop order. We compute the complete set of matching relations between the dimension-two low-energy constants in the two- and three-flavor formulations of the theory. We derive new two-flavor low-ene...
hep-ph/0612240
Fabio L. Braghin
Fabio L. Braghin
Linear Sigma Model at finite baryonic density and symmetry breakings
Work presented at the 18th Workshop on Hadronic Interactions, Sao Paulo, SP, Brazil, May 2006. Accepted to be published
Braz.J.Phys.37:33-36,2007
10.1590/S0103-97332007000100012
null
hep-ph nucl-th
null
The linear sigma model at finite baryonic density with a massive vector field is investigated considering that all the bosonic fields develop non zero expected classical values, eventually associated to condensates and corresponding to dynamical symmetry breakings which might occur in the QCD phase diagram. A modifie...
[ { "created": "Tue, 19 Dec 2006 21:09:56 GMT", "version": "v1" } ]
2011-08-04
[ [ "Braghin", "Fabio L.", "" ] ]
The linear sigma model at finite baryonic density with a massive vector field is investigated considering that all the bosonic fields develop non zero expected classical values, eventually associated to condensates and corresponding to dynamical symmetry breakings which might occur in the QCD phase diagram. A modified ...
hep-ph/0010210
Davor Palle
D. Palle (Rugjer Boskovic Institute, Zagreb, Croatia)
On the quantum loop weak interaction corrections at high energies
LaTeX style, 13 pages, 2 figures, 3 tables
Hadronic J. 24 (2001) 469-484
null
null
hep-ph hep-ex
null
We perform comparative analyses of quantum loop corrections to some observationally important two- and three-point Green functions within two distinct symmetry-breaking mechanisms. It appears that the existing high-energy data, neutrino experiments and present astrophysical and cosmological constraints strongly disfa...
[ { "created": "Wed, 18 Oct 2000 15:37:09 GMT", "version": "v1" } ]
2007-05-23
[ [ "Palle", "D.", "", "Rugjer Boskovic Institute, Zagreb, Croatia" ] ]
We perform comparative analyses of quantum loop corrections to some observationally important two- and three-point Green functions within two distinct symmetry-breaking mechanisms. It appears that the existing high-energy data, neutrino experiments and present astrophysical and cosmological constraints strongly disfavo...
hep-ph/9807459
Alexei P. Martynenko
R.N.Faustov and A.P.Martynenko
Corrections of order (Z\alpha)^6 m_e^2/m_\mu in the muonium fine structure
14 pages, LaTEX, 2 figures, uses linedraw.sty
J.Exp.Theor.Phys.88:672-680,1999; Zh.Eksp.Teor.Fiz.115:1221-1235,1999
10.1134/1.558843
SSU-HEP-98/03
hep-ph
null
In the framework of the quasipotential method we calculate the contributions of the kind (Z\alpha)^6m_e^2/m_\mu to the energy spectrum of the muonium n^3S_1 states. Numerical value of obtained correction for 2^3S_1-1^3S_1 muonium fine structure interval is equal to 0.19 MHz.
[ { "created": "Wed, 22 Jul 1998 09:46:43 GMT", "version": "v1" } ]
2011-08-11
[ [ "Faustov", "R. N.", "" ], [ "Martynenko", "A. P.", "" ] ]
In the framework of the quasipotential method we calculate the contributions of the kind (Z\alpha)^6m_e^2/m_\mu to the energy spectrum of the muonium n^3S_1 states. Numerical value of obtained correction for 2^3S_1-1^3S_1 muonium fine structure interval is equal to 0.19 MHz.
hep-ph/0504115
Stefano Forte
Paolo Bolzoni, Stefano Forte and Giovanni Ridolfi
Renormalization group approach to Sudakov resummation in prompt photon production
21 pages, no figures. Final version to be published in Nucl. Phys. B. Discussion on colour structure added (eqs.(3.17)-(3.18))
Nucl.Phys. B731 (2005) 85-108
10.1016/j.nuclphysb.2005.07.036
IFUM-826/FT, GeF/TH/4-05
hep-ph
null
We prove the all-order exponentiation of soft logarithmic corrections to prompt photon production in hadronic collisions, by generalizing an approach previously developed in the context of Drell-Yan production and deep-inelastic scattering. We show that all large logs in the soft limit can be expressed in terms of tw...
[ { "created": "Thu, 14 Apr 2005 17:02:43 GMT", "version": "v1" }, { "created": "Wed, 27 Jul 2005 07:29:22 GMT", "version": "v2" } ]
2010-04-05
[ [ "Bolzoni", "Paolo", "" ], [ "Forte", "Stefano", "" ], [ "Ridolfi", "Giovanni", "" ] ]
We prove the all-order exponentiation of soft logarithmic corrections to prompt photon production in hadronic collisions, by generalizing an approach previously developed in the context of Drell-Yan production and deep-inelastic scattering. We show that all large logs in the soft limit can be expressed in terms of two ...
2203.15688
Malgorzata Worek
Giuseppe Bevilacqua, Heribertus Bayu Hartanto, Manfred Kraus, Jasmina Nasufi, Malgorzata Worek
NLO QCD corrections to full off-shell production of $t\bar{t}Z$ including leptonic decays
33 pages, 12 figures, 7 tables, version to appear in JHEP
JHEP 08 (2022) 060
10.1007/JHEP08(2022)060
TTK-22-02, P3H-22-002, CAVENDISH-HEP-22/03
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by ongoing new physics searches in the top-quark sector at the Large Hadron Collider we report on the calculation of NLO QCD corrections to the Standard Model $pp\to t\bar{t}Z+X$ process in the tetra-lepton decay channel. This calculation is based on the matrix elements for the $e^+ \nu_e\, \mu^-\bar{\nu}_\...
[ { "created": "Tue, 29 Mar 2022 15:49:15 GMT", "version": "v1" }, { "created": "Mon, 8 Aug 2022 06:52:05 GMT", "version": "v2" } ]
2022-08-09
[ [ "Bevilacqua", "Giuseppe", "" ], [ "Hartanto", "Heribertus Bayu", "" ], [ "Kraus", "Manfred", "" ], [ "Nasufi", "Jasmina", "" ], [ "Worek", "Malgorzata", "" ] ]
Motivated by ongoing new physics searches in the top-quark sector at the Large Hadron Collider we report on the calculation of NLO QCD corrections to the Standard Model $pp\to t\bar{t}Z+X$ process in the tetra-lepton decay channel. This calculation is based on the matrix elements for the $e^+ \nu_e\, \mu^-\bar{\nu}_\mu...
2108.13412
Jeffrey Hyde
Matthew Saveliev, Jeffrey Hyde
Using Secondary Tau Neutrinos to Probe Heavy Dark Matter Decays in Earth
Updated to include projected IceCube-Gen2 sensitivity, various minor revisions for clarity, some references added
Phys. Rev. D 105 083025 (2022)
10.1103/PhysRevD.105.083025
null
hep-ph astro-ph.CO astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Dark matter particles can be gravitationally trapped by celestial bodies, motivating searches for localized annihilation or decay. If neutrinos are among the decay products, then IceCube and other neutrino observatories could detect them. We investigate this scenario for dark matter particles above $m_{\chi} \gtrsim$...
[ { "created": "Mon, 30 Aug 2021 17:58:34 GMT", "version": "v1" }, { "created": "Sat, 9 Apr 2022 16:34:23 GMT", "version": "v2" } ]
2022-05-02
[ [ "Saveliev", "Matthew", "" ], [ "Hyde", "Jeffrey", "" ] ]
Dark matter particles can be gravitationally trapped by celestial bodies, motivating searches for localized annihilation or decay. If neutrinos are among the decay products, then IceCube and other neutrino observatories could detect them. We investigate this scenario for dark matter particles above $m_{\chi} \gtrsim$ P...
1703.04985
Divya Sachdeva
Mathew Thomas Arun, Debajyoti Choudhury, Divya Sachdeva
Universal Extra Dimensions and the Graviton Portal to Dark Matter
16 pages, 4 figures, To be published in JCAP
null
10.1088/1475-7516/2017/10/041
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Universal Extra Dimension (UED) paradigm is particularly attractive as it not only includes a natural candidate for the Dark Matter particle but also addresses several issues related to particle physics. Non-observations at the Large Hadron Collider, though, has brought the paradigm into severe tension. However, ...
[ { "created": "Wed, 15 Mar 2017 07:45:51 GMT", "version": "v1" }, { "created": "Tue, 24 Oct 2017 07:42:05 GMT", "version": "v2" } ]
2017-11-01
[ [ "Arun", "Mathew Thomas", "" ], [ "Choudhury", "Debajyoti", "" ], [ "Sachdeva", "Divya", "" ] ]
The Universal Extra Dimension (UED) paradigm is particularly attractive as it not only includes a natural candidate for the Dark Matter particle but also addresses several issues related to particle physics. Non-observations at the Large Hadron Collider, though, has brought the paradigm into severe tension. However, a ...
hep-ph/9801379
Herbert Weigel
L. Gamberg (Oklahoma U.), H. Reinhardt (Tuebingen U.), and H. Weigel (Tuebingen U.)
Chiral Odd Structure Functions from a Chiral Soliton
36 pages, 10 postscript figures, discussion on numerical results extended, to be published in Phys. Rev. D
Phys.Rev. D58 (1998) 054014
10.1103/PhysRevD.58.054014
OKHEP-97-07, UNITU-THEP-1/1998
hep-ph
null
We calculate the chiral odd quark distributions and the corresponding structure functions $h_T(x,Q^2)$ and $h_L(x,Q^2)$ within the Nambu-Jona-Lasinio chiral soliton model for the nucleon. The $Q^2$ evolution of the twist-2 contributions is performed according to the standard GLAP formalism while the twist-three piece...
[ { "created": "Wed, 21 Jan 1998 18:55:02 GMT", "version": "v1" }, { "created": "Thu, 22 Jan 1998 16:35:57 GMT", "version": "v2" }, { "created": "Mon, 26 Jan 1998 18:30:10 GMT", "version": "v3" }, { "created": "Wed, 27 May 1998 06:49:32 GMT", "version": "v4" } ]
2016-09-06
[ [ "Gamberg", "L.", "", "Oklahoma U." ], [ "Reinhardt", "H.", "", "Tuebingen U." ], [ "Weigel", "H.", "", "Tuebingen U." ] ]
We calculate the chiral odd quark distributions and the corresponding structure functions $h_T(x,Q^2)$ and $h_L(x,Q^2)$ within the Nambu-Jona-Lasinio chiral soliton model for the nucleon. The $Q^2$ evolution of the twist-2 contributions is performed according to the standard GLAP formalism while the twist-three piece, ...
hep-ph/0608208
Gautam Bhattacharyya
Gautam Bhattacharyya, Anindya Datta, Swarup Kumar Majee, Amitava Raychaudhuri
Power law scaling in Universal Extra Dimension scenarios
Latex, 12 pages, 5 figures; v2: minor changes, to appear in Nucl. Phys. B
Nucl.Phys. B760 (2007) 117-127
10.1016/j.nuclphysb.2006.10.018
SINP/TNP/06-22, HRI-P-06-08-002, CU-Physics-09/2006
hep-ph
null
We study the power law running of gauge, Yukawa and quartic scalar couplings in the universal extra dimension scenario where the extra dimension is accessed by all the standard model fields. After compactifying on an $S_1 /Z_2$ orbifold, we compute one-loop contributions of the relevant Kaluza-Klein (KK) towers to th...
[ { "created": "Fri, 18 Aug 2006 13:57:06 GMT", "version": "v1" }, { "created": "Tue, 14 Nov 2006 09:27:52 GMT", "version": "v2" } ]
2010-04-05
[ [ "Bhattacharyya", "Gautam", "" ], [ "Datta", "Anindya", "" ], [ "Majee", "Swarup Kumar", "" ], [ "Raychaudhuri", "Amitava", "" ] ]
We study the power law running of gauge, Yukawa and quartic scalar couplings in the universal extra dimension scenario where the extra dimension is accessed by all the standard model fields. After compactifying on an $S_1 /Z_2$ orbifold, we compute one-loop contributions of the relevant Kaluza-Klein (KK) towers to the ...
1104.1497
Chuan Hung Chen
Chuan-Hung Chen, Sandy S. C. Law, Run-Hui Li
Rare B decays and Tevatron top-pair asymmetry
15 page, 6 figures, typos corrected and references added, final version to appear journal
null
10.1088/0954-3899/38/11/115008
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The recent Tevatron result on the top quark forward-backward asymmetry, which deviates from its standard model prediction by 3.4$\sigma$, has prompted many authors to build new models to account for this anomaly. Among the various proposals, we find that those mechanisms which produce $t\bar t$ via $t$- or $u$-channe...
[ { "created": "Fri, 8 Apr 2011 06:47:10 GMT", "version": "v1" }, { "created": "Thu, 14 Apr 2011 13:17:21 GMT", "version": "v2" }, { "created": "Tue, 1 Nov 2011 13:26:46 GMT", "version": "v3" } ]
2015-05-27
[ [ "Chen", "Chuan-Hung", "" ], [ "Law", "Sandy S. C.", "" ], [ "Li", "Run-Hui", "" ] ]
The recent Tevatron result on the top quark forward-backward asymmetry, which deviates from its standard model prediction by 3.4$\sigma$, has prompted many authors to build new models to account for this anomaly. Among the various proposals, we find that those mechanisms which produce $t\bar t$ via $t$- or $u$-channel ...
hep-ph/9810475
Patricia Ball
Patricia Ball and V.M. Braun
Higher Twist Distribution Amplitudes of Vector Mesons in QCD: Twist-4 Distributions and Meson Mass Corrections
38 pages Latex, 2 postscript figures
Nucl.Phys. B543 (1999) 201-238
10.1016/S0550-3213(99)00014-0
CERN-TH/98-333
hep-ph
null
We present a systematic study of twist-4 light-cone distribution amplitudes of vector mesons in QCD, which is based on conformal expansion. The structure of meson mass corrections is studied in detail. A complete set of distribution amplitudes is constructed, which satisfies all (exact) equations of motion and constr...
[ { "created": "Mon, 26 Oct 1998 09:22:28 GMT", "version": "v1" } ]
2009-10-31
[ [ "Ball", "Patricia", "" ], [ "Braun", "V. M.", "" ] ]
We present a systematic study of twist-4 light-cone distribution amplitudes of vector mesons in QCD, which is based on conformal expansion. The structure of meson mass corrections is studied in detail. A complete set of distribution amplitudes is constructed, which satisfies all (exact) equations of motion and constrai...
2401.00687
Tae Hyun Jung
Sanghyeon Chang, Sougata Ganguly, Tae Hyun Jung, Tae-Sun Park, Chang Sub Shin
Constraining MeV to 10 GeV majoron by Big Bang Nucleosynthesis
12 pages, 3 figures, v2: major revision made by including correct n/p conversion induced by modified thermal neutrinos, slight changes in the result, references added, version accepted in PRD
null
null
CTPU-PTC-23-56
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
We estimate the Big Bang nucleosynthesis (BBN) constraint on the majoron in the mass range between $1\,{\rm MeV}$ to $10\,{\rm GeV}$ which dominantly decays into the standard model neutrinos. When the majoron lifetime is shorter than $1\,{\rm sec}$, the injected neutrinos mainly heat up background plasma, which alter...
[ { "created": "Mon, 1 Jan 2024 07:23:54 GMT", "version": "v1" }, { "created": "Mon, 1 Jul 2024 04:32:51 GMT", "version": "v2" } ]
2024-07-02
[ [ "Chang", "Sanghyeon", "" ], [ "Ganguly", "Sougata", "" ], [ "Jung", "Tae Hyun", "" ], [ "Park", "Tae-Sun", "" ], [ "Shin", "Chang Sub", "" ] ]
We estimate the Big Bang nucleosynthesis (BBN) constraint on the majoron in the mass range between $1\,{\rm MeV}$ to $10\,{\rm GeV}$ which dominantly decays into the standard model neutrinos. When the majoron lifetime is shorter than $1\,{\rm sec}$, the injected neutrinos mainly heat up background plasma, which alters ...
1312.4447
Frank Deppisch
Frank F. Deppisch, Julia Harz and Martin Hirsch
Falsifying High-Scale Leptogenesis at the LHC
5 pages, 5 figures, matches published version
Phys. Rev. Lett. 112, 221601 (2014)
10.1103/PhysRevLett.112.221601
LCTS/2013-30, IFIC/2013-96
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Measuring a non-zero value for the cross section of any lepton number violating (LNV) process would put a strong lower limit on the washout factor for the effective lepton number density in the early universe at times close to the electroweak phase transition and thus would lead to important constraints on any high-s...
[ { "created": "Mon, 16 Dec 2013 18:27:23 GMT", "version": "v1" }, { "created": "Mon, 23 Jun 2014 13:33:19 GMT", "version": "v2" } ]
2014-06-24
[ [ "Deppisch", "Frank F.", "" ], [ "Harz", "Julia", "" ], [ "Hirsch", "Martin", "" ] ]
Measuring a non-zero value for the cross section of any lepton number violating (LNV) process would put a strong lower limit on the washout factor for the effective lepton number density in the early universe at times close to the electroweak phase transition and thus would lead to important constraints on any high-sca...
1911.07791
Nathan Sherrill
Nathan Sherrill
Lorentz Violation and Partons
Presented at the Eighth Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, May 12-16, 2019
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A parton-model description of high-energy hadronic interactions in the presence of Lorentz violation is presented. This approach is used to study lepton-hadron and hadron-hadron interactions at large momentum transfer. Cross sections for deep inelastic scattering and the Drell-Yan process are calculated at first orde...
[ { "created": "Mon, 18 Nov 2019 17:44:26 GMT", "version": "v1" } ]
2019-11-19
[ [ "Sherrill", "Nathan", "" ] ]
A parton-model description of high-energy hadronic interactions in the presence of Lorentz violation is presented. This approach is used to study lepton-hadron and hadron-hadron interactions at large momentum transfer. Cross sections for deep inelastic scattering and the Drell-Yan process are calculated at first order ...
0710.5660
Walter Winter
Walter Winter
Systematic Model Building Based on Quark-Lepton Complementarity Assumptions
3 pages, 1 figure. Talk given at the NuFact 07 conference, Aug 6-11, 2007, Okayama, Japan
AIPConf.Proc.981:199-201,2008
10.1063/1.2898932
null
hep-ph
null
In this talk, we present a procedure to systematically generate a large number of valid mass matrix textures from very generic assumptions. Compared to plain anarchy arguments, we postulate some structure for the theory, such as a possible connection between quarks and leptons, and a mechanism to generate flavor stru...
[ { "created": "Tue, 30 Oct 2007 14:44:44 GMT", "version": "v1" } ]
2008-11-26
[ [ "Winter", "Walter", "" ] ]
In this talk, we present a procedure to systematically generate a large number of valid mass matrix textures from very generic assumptions. Compared to plain anarchy arguments, we postulate some structure for the theory, such as a possible connection between quarks and leptons, and a mechanism to generate flavor struct...
hep-ph/0402058
Oliver Brein
Oliver Brein and Wolfgang Hollik
Production of Neutral Higgs + Jet at the LHC in the SM and the MSSM
4 pages, To appear in the Proceedings of SUSY 2003, held at the University of Arizona, Tucson, AZ, 5-10 June 2003
null
null
null
hep-ph
null
The cross section prediction for the production of the lightest neutral Higgs boson in association with a high-p_T hadronic jet is presented in the framework of the minimal supersymmetric standard model (MSSM) and compared to the SM case. Prospects for the CERN Large Hadron Collider (LHC) are discussed.
[ { "created": "Thu, 5 Feb 2004 19:03:55 GMT", "version": "v1" } ]
2007-05-23
[ [ "Brein", "Oliver", "" ], [ "Hollik", "Wolfgang", "" ] ]
The cross section prediction for the production of the lightest neutral Higgs boson in association with a high-p_T hadronic jet is presented in the framework of the minimal supersymmetric standard model (MSSM) and compared to the SM case. Prospects for the CERN Large Hadron Collider (LHC) are discussed.
hep-ph/0410101
Guido Altarelli
Guido Altarelli (CERN)
Neutrino 2004: Concluding Talk
Presented at Neutrino 2004, Paris, 14-19 June 2004
null
10.1016/j.nuclphysbps.2005.01.146
CERN-PH-TH/2004-197
hep-ph
null
We review the highlights of Neutrino 2004 and recall the main lessons from neutrinos in recent years that had a great impact on particle physics and cosmology.
[ { "created": "Thu, 7 Oct 2004 10:01:42 GMT", "version": "v1" } ]
2009-11-10
[ [ "Altarelli", "Guido", "", "CERN" ] ]
We review the highlights of Neutrino 2004 and recall the main lessons from neutrinos in recent years that had a great impact on particle physics and cosmology.
1206.2519
Konstantin Klimenko
N. V. Gubina, K. G. Klimenko, S. G. Kurbanov, and V. Ch. Zhukovsky
Inhomogeneous charged pion condensation phenomenon in the NJL$_2$ model with quark number and isospin chemical potentials
11 pages, 8 figures; version accepted for publication in PRD. arXiv admin note: text overlap with arXiv:1106.2928, arXiv:1102.4079
null
10.1103/PhysRevD.86.085011
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The properties of two-flavored massive Nambu--Jona-Lasinio model in (1+1)-dimensional spacetime are investigated in the presence of isospin and quark number chemical potentials. The consideration is performed in the large-$N_c$ limit, where $N_c$ is the number of colored quarks. It is shown in the framework of this m...
[ { "created": "Tue, 12 Jun 2012 13:22:11 GMT", "version": "v1" }, { "created": "Wed, 22 Aug 2012 13:39:35 GMT", "version": "v2" } ]
2013-05-30
[ [ "Gubina", "N. V.", "" ], [ "Klimenko", "K. G.", "" ], [ "Kurbanov", "S. G.", "" ], [ "Zhukovsky", "V. Ch.", "" ] ]
The properties of two-flavored massive Nambu--Jona-Lasinio model in (1+1)-dimensional spacetime are investigated in the presence of isospin and quark number chemical potentials. The consideration is performed in the large-$N_c$ limit, where $N_c$ is the number of colored quarks. It is shown in the framework of this mod...
hep-ph/0001217
Andrei Afanasev
Andrei V. Afanasev (NCCU/JLab), V.D. Afanasev, S.V. Trubnikov (Kharkov)
Relativistic Charge Form Factor of the Deuteron from (np)-Scattering Phase Shifts
18 pages, 5 eps-figures; typos fixed
null
null
null
hep-ph nucl-th
null
Relativistic integral representation in terms of experimental neutron-proton scattering phase shifts is used to compute the charge form factor of the deuteron $ G_{Cd}(Q^2)$. The results of numerical calculations of $|G_{Cd}(Q^2)|$ are presented in the interval of the four-momentum transfers squared $0 \leq Q^2 \leq ...
[ { "created": "Thu, 20 Jan 2000 22:00:55 GMT", "version": "v1" }, { "created": "Wed, 26 Jan 2000 21:49:37 GMT", "version": "v2" } ]
2007-05-23
[ [ "Afanasev", "Andrei V.", "", "NCCU/JLab" ], [ "Afanasev", "V. D.", "", "Kharkov" ], [ "Trubnikov", "S. V.", "", "Kharkov" ] ]
Relativistic integral representation in terms of experimental neutron-proton scattering phase shifts is used to compute the charge form factor of the deuteron $ G_{Cd}(Q^2)$. The results of numerical calculations of $|G_{Cd}(Q^2)|$ are presented in the interval of the four-momentum transfers squared $0 \leq Q^2 \leq 35...
1308.5897
Zhengliang Liang
Zheng-Liang Liang and Yue-Liang Wu
Direct detection and solar capture of spin-dependent dark matter
24 pages, 1 table, 9 figures, matches publication
Phys. Rev. D 89, 013010 (2014)
10.1103/PhysRevD.89.013010
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the implication of different spin-dependent (SD) operators on both the direct and indirect detections of the Weakly Interacting Massive Particle (WIMP). Six representative building blocks of SD operators, together with their counterparts with a massless mediator are considered to interpret the direct d...
[ { "created": "Tue, 27 Aug 2013 15:28:00 GMT", "version": "v1" }, { "created": "Thu, 17 Oct 2013 10:22:23 GMT", "version": "v2" }, { "created": "Tue, 25 Feb 2014 06:47:11 GMT", "version": "v3" } ]
2014-02-26
[ [ "Liang", "Zheng-Liang", "" ], [ "Wu", "Yue-Liang", "" ] ]
We investigate the implication of different spin-dependent (SD) operators on both the direct and indirect detections of the Weakly Interacting Massive Particle (WIMP). Six representative building blocks of SD operators, together with their counterparts with a massless mediator are considered to interpret the direct det...
hep-ph/9710456
M. R. Pennington
M.R. Pennington (Centre for Particle Theory, University of Durham, Durham, U.K)
The production model of Ishida et al. and unitarity
null
null
null
null
hep-ph
null
The relation between scattering and production amplitudes imposed by unitarity and analyticity, recently criticised by Ishida et al., is explained.
[ { "created": "Fri, 24 Oct 1997 14:16:03 GMT", "version": "v1" } ]
2007-05-23
[ [ "Pennington", "M. R.", "", "Centre for Particle Theory, University of Durham,\n Durham, U.K" ] ]
The relation between scattering and production amplitudes imposed by unitarity and analyticity, recently criticised by Ishida et al., is explained.
1705.07931
Pat Scott
The GAMBIT Collaboration: Peter Athron, Csaba Bal\'azs, Torsten Bringmann, Andy Buckley, Marcin Chrz\k{a}szcz, Jan Conrad, Jonathan M. Cornell, Lars A. Dal, Joakim Edsj\"o, Ben Farmer, Paul Jackson, Felix Kahlhoefer, Abram Krislock, Anders Kvellestad, James McKay, Farvah Mahmoudi, Gregory D. Martinez, Antje Put...
Status of the scalar singlet dark matter model
19 pages, 5 figures, matches published version. v3 updates the Zenodo URL for supplementary data (available at https://doi.org/10.5281/zenodo.801510)
Eur. Phys. J. C 77, 568 (2017)
10.1140/epjc/s10052-017-5113-1
CoEPP-MN-17-10, gambit-physics-2017
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One of the simplest viable models for dark matter is an additional neutral scalar, stabilised by a $\mathbb{Z}_2$ symmetry. Using the GAMBIT package and combining results from four independent samplers, we present Bayesian and frequentist global fits of this model. We vary the singlet mass and coupling along with 13 ...
[ { "created": "Mon, 22 May 2017 18:14:56 GMT", "version": "v1" }, { "created": "Mon, 2 Oct 2017 13:27:31 GMT", "version": "v2" }, { "created": "Fri, 19 Oct 2018 20:31:31 GMT", "version": "v3" } ]
2020-08-06
[ [ "The GAMBIT Collaboration", "", "" ], [ "Athron", "Peter", "" ], [ "Balázs", "Csaba", "" ], [ "Bringmann", "Torsten", "" ], [ "Buckley", "Andy", "" ], [ "Chrząszcz", "Marcin", "" ], [ "Conrad", "Jan", "" ...
One of the simplest viable models for dark matter is an additional neutral scalar, stabilised by a $\mathbb{Z}_2$ symmetry. Using the GAMBIT package and combining results from four independent samplers, we present Bayesian and frequentist global fits of this model. We vary the singlet mass and coupling along with 13 nu...
1606.07090
Edward Hardy
Giovanni Grilli di Cortona, Edward Hardy, Andrew J. Powell
Dirac vs Majorana gauginos at a 100 TeV collider
44 pages, 9 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compare the prospects for observing theories with Majorana or Dirac gauginos at a future 100 TeV proton-proton collider. Calculating the expected discovery and exclusion regions, we find that for heavy gluino masses the squark discovery reach is significantly reduced in Dirac gluino models relative to the Majorana...
[ { "created": "Wed, 22 Jun 2016 20:17:56 GMT", "version": "v1" } ]
2016-06-24
[ [ "di Cortona", "Giovanni Grilli", "" ], [ "Hardy", "Edward", "" ], [ "Powell", "Andrew J.", "" ] ]
We compare the prospects for observing theories with Majorana or Dirac gauginos at a future 100 TeV proton-proton collider. Calculating the expected discovery and exclusion regions, we find that for heavy gluino masses the squark discovery reach is significantly reduced in Dirac gluino models relative to the Majorana c...
2311.14486
David Cabo-Almeida
Giorgio Arcadi, Giorgio Busoni, David Cabo-Almeida, Navneet Krishnan
Is there a (Pseudo)Scalar at 95 GeV?
45 pages, 8 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the possibility of interpreting the recent experimental hints, in favour of a 95 GeV resonance, with extensions of the Standard Model featuring an extra Higgs doublet and SM scalar (2HDM+s) or pseudoscalar singlet (2HDM+a). The possibility of reproducing the experimental anomalies will be compared with the...
[ { "created": "Fri, 24 Nov 2023 13:52:11 GMT", "version": "v1" } ]
2023-11-27
[ [ "Arcadi", "Giorgio", "" ], [ "Busoni", "Giorgio", "" ], [ "Cabo-Almeida", "David", "" ], [ "Krishnan", "Navneet", "" ] ]
We discuss the possibility of interpreting the recent experimental hints, in favour of a 95 GeV resonance, with extensions of the Standard Model featuring an extra Higgs doublet and SM scalar (2HDM+s) or pseudoscalar singlet (2HDM+a). The possibility of reproducing the experimental anomalies will be compared with the t...
1409.5813
Jonathan Rosner
Jonathan L. Rosner
Interpretation of an "edge" in proton-proton scattering
4 pages, 1 figure, to be submitted to Phys. Rev. D. Some references and acknowledgments added
Phys. Rev. D 90, 117902 (2014)
10.1103/PhysRevD.90.117902
EFI 14-33
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A study of proton-proton collisions at very high energy has revealed a "black disk," whose radius grows with the logarithm of the center-of-mass energy, surrounded by an edge of approximately constant width 1 fm. We interpret this behavior as the maximum length of a QCD string connecting the color triplet and antitri...
[ { "created": "Fri, 19 Sep 2014 20:43:09 GMT", "version": "v1" }, { "created": "Wed, 5 Nov 2014 19:25:12 GMT", "version": "v2" } ]
2014-12-31
[ [ "Rosner", "Jonathan L.", "" ] ]
A study of proton-proton collisions at very high energy has revealed a "black disk," whose radius grows with the logarithm of the center-of-mass energy, surrounded by an edge of approximately constant width 1 fm. We interpret this behavior as the maximum length of a QCD string connecting the color triplet and antitripl...
2109.01216
Hai-Yang Cheng
Hai-Yang Cheng
Charmed Baryon Physics Circa 2021
67 pages, 11 figures, published version in Chin. J. Phys
Chin. J. Phys. 78 (2022) 324-362
10.1016/j.cjph.2022.06.021
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This is an update of the two articles (H.Y. Cheng, 2009; Cheng, 2015) in which charmed baryon physics around 2007 and 2015, respectively, were reviewed. In this review we emphasize the experimental progress and the theoretical development since 2015.
[ { "created": "Thu, 2 Sep 2021 21:13:26 GMT", "version": "v1" }, { "created": "Mon, 6 Sep 2021 14:50:00 GMT", "version": "v2" }, { "created": "Fri, 24 Jun 2022 00:58:35 GMT", "version": "v3" }, { "created": "Tue, 19 Jul 2022 18:31:50 GMT", "version": "v4" } ]
2022-08-10
[ [ "Cheng", "Hai-Yang", "" ] ]
This is an update of the two articles (H.Y. Cheng, 2009; Cheng, 2015) in which charmed baryon physics around 2007 and 2015, respectively, were reviewed. In this review we emphasize the experimental progress and the theoretical development since 2015.
hep-ph/9506326
null
V.A.Ilyin, T.Kaneko, Y.Kurihara, A.E.Pukhov and Y.Shimizu
Probing the HHH vertex in e+e-, e-gamma and gamma-gamma collisions for light and intermediate Higgs bosons
14 pages of text (including Table and Figures captions and 1 Table) in standard LATEX code; 9 figures in one PS file, prepared by the script `uufiles' (see comment at the head of the received file)
Phys.Rev. D54 (1996) 6717-6727
10.1103/PhysRevD.54.6717
KEK CP-030; INP MSU Preprint-95-16/380
hep-ph
null
We have studied double Higgs production at future linear colliders while paying special attention to the option of high-energy and high-luminosity photon beams. The main purpose was to examine the feasibility of e+e-, e-gamma and gamma-gamma colliders in order to probe the anomalous triple Higgs coupling, which is cr...
[ { "created": "Wed, 14 Jun 1995 13:11:01 GMT", "version": "v1" } ]
2009-10-28
[ [ "Ilyin", "V. A.", "" ], [ "Kaneko", "T.", "" ], [ "Kurihara", "Y.", "" ], [ "Pukhov", "A. E.", "" ], [ "Shimizu", "Y.", "" ] ]
We have studied double Higgs production at future linear colliders while paying special attention to the option of high-energy and high-luminosity photon beams. The main purpose was to examine the feasibility of e+e-, e-gamma and gamma-gamma colliders in order to probe the anomalous triple Higgs coupling, which is cruc...
hep-ph/9710426
Apostolos Pilaftsis
Joannis Papavassiliou (CERN) and Apostolos Pilaftsis (MPI, Munich)
Gauge- and Renormalization-Group- Invariant Formulation of the Higgs-Boson Resonance
55 pages, LaTeX, two encapsulated figures included
Phys.Rev.D58:053002,1998
10.1103/PhysRevD.58.053002
CERN-TH/97-293 and MPI/PhT/97-67
hep-ph
null
A gauge- and renormalization-group- invariant approach implemented by the pinch technique is formulated for resonant transitions involving the Higgs boson. The lineshape of the Higgs boson is shown to consist of two distinct and physically meaningful contributions: a process-independent resonant part and a process-de...
[ { "created": "Tue, 21 Oct 1997 17:12:58 GMT", "version": "v1" } ]
2011-01-13
[ [ "Papavassiliou", "Joannis", "", "CERN" ], [ "Pilaftsis", "Apostolos", "", "MPI, Munich" ] ]
A gauge- and renormalization-group- invariant approach implemented by the pinch technique is formulated for resonant transitions involving the Higgs boson. The lineshape of the Higgs boson is shown to consist of two distinct and physically meaningful contributions: a process-independent resonant part and a process-depe...
hep-ph/0509058
Matti Jarvinen
Paul Hoyer and Matti Jarvinen
Soft Rescattering in DIS: Effects of Helicity Flip
9 pages, 1 figure. v2: reference added
JHEP0510:080,2005
10.1088/1126-6708/2005/10/080
HIP-2005-36/TH, NORDITA-2005-56
hep-ph
null
Soft rescattering in hard QCD processes may involve non-perturbative, chiral symmetry breaking interactions. We find that rescattering which changes the helicity of the struck quark gives rise to a leading twist single spin asymmetry in semi-inclusive DIS, the angular dependence of which is the same as that usually a...
[ { "created": "Wed, 7 Sep 2005 07:44:27 GMT", "version": "v1" }, { "created": "Wed, 26 Oct 2005 15:00:08 GMT", "version": "v2" } ]
2009-11-11
[ [ "Hoyer", "Paul", "" ], [ "Jarvinen", "Matti", "" ] ]
Soft rescattering in hard QCD processes may involve non-perturbative, chiral symmetry breaking interactions. We find that rescattering which changes the helicity of the struck quark gives rise to a leading twist single spin asymmetry in semi-inclusive DIS, the angular dependence of which is the same as that usually asc...
1703.03411
Ian Moult
Ilya Feige, Daniel W. Kolodrubetz, Ian Moult and Iain W. Stewart
A Complete Basis of Helicity Operators for Subleading Factorization
110 pages, many figures
null
10.1007/JHEP11(2017)142
MIT-CTP 4597
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Factorization theorems underly our ability to make predictions for many processes involving the strong interaction. Although typically formulated at leading power, the study of factorization at subleading power is of interest both for improving the precision of calculations, as well as for understanding the all order...
[ { "created": "Thu, 9 Mar 2017 19:00:01 GMT", "version": "v1" } ]
2018-01-17
[ [ "Feige", "Ilya", "" ], [ "Kolodrubetz", "Daniel W.", "" ], [ "Moult", "Ian", "" ], [ "Stewart", "Iain W.", "" ] ]
Factorization theorems underly our ability to make predictions for many processes involving the strong interaction. Although typically formulated at leading power, the study of factorization at subleading power is of interest both for improving the precision of calculations, as well as for understanding the all orders ...
hep-ph/9804263
Sergey Michailov
S.V. Mikhailov
Renormalon chains contributions to the non-singlet evolutional kernels in QCD
9 pages, LATEX, 1 Table, 1 figure is included into the tex-file, 1 figure is added as ps-file. References added, minor corrections in style, to be published in Physics Letters B
Phys.Lett.B431:387-394,1998
10.1016/S0370-2693(98)00585-1
E2-98-43 JINR, Dubna
hep-ph
null
Contributions to QCD non-singlet evolution kernels $P(z)$ for the DGLAP equation and $V(x,y)$ for the Brodsky-Lepage evolution equation are calculated for a certain class of diagrams which include renormalon chains. Closed expressions are presented for the sums of these contributions that dominate for a large number ...
[ { "created": "Thu, 9 Apr 1998 07:58:03 GMT", "version": "v1" }, { "created": "Fri, 10 Apr 1998 16:03:17 GMT", "version": "v2" }, { "created": "Wed, 22 Apr 1998 08:30:45 GMT", "version": "v3" }, { "created": "Wed, 13 May 1998 11:32:16 GMT", "version": "v4" } ]
2014-11-17
[ [ "Mikhailov", "S. V.", "" ] ]
Contributions to QCD non-singlet evolution kernels $P(z)$ for the DGLAP equation and $V(x,y)$ for the Brodsky-Lepage evolution equation are calculated for a certain class of diagrams which include renormalon chains. Closed expressions are presented for the sums of these contributions that dominate for a large number of...
1108.3409
Takaaki Mori
T. Mori, R. Yamaguchi, M. Sakuda, A. M. Ankowski and O. Benhar
The \gamma-ray production in neutral-current neutrino oxygen interaction in the energy range above 100 MeV
null
null
10.1063/1.3661571
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the cross section of the gamma-ray production from neutral-current neutrino-oxygen quasi-elastic interaction, $\nu+\^{16}O \rightarrow \nu +p+^{15}N*$, or $\nu+^{16}O \rightarrow \nu+n+^{15}O*$, in which the residual nuclei (15N* or 15O*) lead to the gamma-ray emission with gamma-ray energy >6 MeV at the...
[ { "created": "Wed, 17 Aug 2011 07:00:38 GMT", "version": "v1" } ]
2015-05-30
[ [ "Mori", "T.", "" ], [ "Yamaguchi", "R.", "" ], [ "Sakuda", "M.", "" ], [ "Ankowski", "A. M.", "" ], [ "Benhar", "O.", "" ] ]
We calculate the cross section of the gamma-ray production from neutral-current neutrino-oxygen quasi-elastic interaction, $\nu+\^{16}O \rightarrow \nu +p+^{15}N*$, or $\nu+^{16}O \rightarrow \nu+n+^{15}O*$, in which the residual nuclei (15N* or 15O*) lead to the gamma-ray emission with gamma-ray energy >6 MeV at the b...
1304.2781
Christopher Deans
Christopher S. Deans
Progress in the NNPDF global analysis
4 pages, 3 figures, to appear in the proceedings of Rencontres de Moriond 2013, QCD and High Energy Interactions
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We report on recent progress in the NNPDF framework of global PDF analysis. The NNPDF2.3 set is the first and only available PDF set with includes LHC data. A recent benchmark comparison of NNPDF2.3 and all other modern NNLO PDF sets with LHC data was performed. We have also studied theoretical uncertainties due to h...
[ { "created": "Tue, 9 Apr 2013 20:01:30 GMT", "version": "v1" } ]
2013-04-11
[ [ "Deans", "Christopher S.", "" ] ]
We report on recent progress in the NNPDF framework of global PDF analysis. The NNPDF2.3 set is the first and only available PDF set with includes LHC data. A recent benchmark comparison of NNPDF2.3 and all other modern NNLO PDF sets with LHC data was performed. We have also studied theoretical uncertainties due to hea...
1111.2830
Nishita Desai
Nishita Desai and Biswarup Mukhopadhyaya (Harish-Chandra Research Institute)
Constraints on supersymmetry with light third family from LHC data
20 pages, 8 figures, 2 tables. Version published in JHEP
JHEP 1205 (2012) 057
10.1007/JHEP05(2012)057
HRI-RECAPP-11-009
hep-ph
http://creativecommons.org/licenses/by-nc-sa/3.0/
We present a re-interpretation of the recent ATLAS limits on supersymmetry in channels with jets (with and without b-tags) and missing energy, in the context of light third family squarks, while the first two squark families are inaccessible at the 7 TeV run of the Large Hadron Collider (LHC). In contrast to interpre...
[ { "created": "Fri, 11 Nov 2011 19:35:28 GMT", "version": "v1" }, { "created": "Wed, 3 Oct 2012 12:28:57 GMT", "version": "v2" } ]
2012-10-04
[ [ "Desai", "Nishita", "", "Harish-Chandra Research\n Institute" ], [ "Mukhopadhyaya", "Biswarup", "", "Harish-Chandra Research\n Institute" ] ]
We present a re-interpretation of the recent ATLAS limits on supersymmetry in channels with jets (with and without b-tags) and missing energy, in the context of light third family squarks, while the first two squark families are inaccessible at the 7 TeV run of the Large Hadron Collider (LHC). In contrast to interpreta...
hep-ph/0305020
Badri Magradze
B. A. Magradze (A. Razmadze Tbilisi Mathematical Institute)
Practical techniques of analytic perturbation theory of QCD
15 pages, 1 Postscript Figure, 11 Tables, talk given at the extended seminar at I. Vecua Institute of Applied Mathematics. Tbilisi 22 April 2003. Eq. (12) was corrected
null
null
RMI-2003-055
hep-ph
null
The Lambert-W explicit solutions to the QCD renormalization group (RG) equation are considered up to fourth order in the ${\bar {MS}}$ scheme. We compare, systematically, these solutions with the conventional asymptotical (iterative) approximations and with the exact numerical solutions to the RG equation in the doma...
[ { "created": "Fri, 2 May 2003 12:42:28 GMT", "version": "v1" }, { "created": "Mon, 2 Feb 2004 14:45:14 GMT", "version": "v2" } ]
2007-05-23
[ [ "Magradze", "B. A.", "", "A. Razmadze Tbilisi Mathematical Institute" ] ]
The Lambert-W explicit solutions to the QCD renormalization group (RG) equation are considered up to fourth order in the ${\bar {MS}}$ scheme. We compare, systematically, these solutions with the conventional asymptotical (iterative) approximations and with the exact numerical solutions to the RG equation in the domain...
0905.4299
Ignasi Rosell
Ignasi Rosell
Resonance saturation at next-to-leading order
7 pages. Contribution to the proceedings of EFT'09 - International Workshop on Effective Field Theories: from the Pion to the Upsilon-, 1-6 February 2009, Valencia (Spain)
null
null
IFIC-09-21
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A proper estimation of the chiral low-energy constants of Chiral Perturbation Theory is a very important task. To this end resonance chiral Lagrangians have been used fruitfully. We have studied the determination of chiral couplings at next-to-leading (NLO) order in the 1/N(C) expansion, keeping full control of the r...
[ { "created": "Tue, 26 May 2009 21:57:50 GMT", "version": "v1" } ]
2009-05-28
[ [ "Rosell", "Ignasi", "" ] ]
A proper estimation of the chiral low-energy constants of Chiral Perturbation Theory is a very important task. To this end resonance chiral Lagrangians have been used fruitfully. We have studied the determination of chiral couplings at next-to-leading (NLO) order in the 1/N(C) expansion, keeping full control of the ren...
hep-ph/0504277
Johannes Hirn
Johannes Hirn, Jan Stern
Lepton-number violation and right-handed neutrinos in Higgs-less effective theories
Corresponds to published version: added subsection VI-D about order-of-magnitude estimates
Phys.Rev. D73 (2006) 056001
10.1103/PhysRevD.73.056001
IFIC/05-23, FTUV/05-0428
hep-ph
null
Following previous work, we identify a symmetry S_nat that generalizes the concept of custodial symmetry, keeping under control deviations from the Standard Model (SM). To realize S_nat linearly, the space of gauge fields has to be extended. Covariant constraints formulated in terms of spurions reduce S_nat back to S...
[ { "created": "Thu, 28 Apr 2005 16:39:28 GMT", "version": "v1" }, { "created": "Wed, 5 Apr 2006 13:45:32 GMT", "version": "v2" } ]
2009-11-11
[ [ "Hirn", "Johannes", "" ], [ "Stern", "Jan", "" ] ]
Following previous work, we identify a symmetry S_nat that generalizes the concept of custodial symmetry, keeping under control deviations from the Standard Model (SM). To realize S_nat linearly, the space of gauge fields has to be extended. Covariant constraints formulated in terms of spurions reduce S_nat back to SU(...
2211.09474
Kornelija Passek-Kumericki
Peter Kroll and Kornelija Passek-Kumeri\v{c}ki
Transition GPDs and exclusive electroproduction of $\pi-\Delta(1232)$ final states
31 pages, 6 figures
null
10.1103/PhysRevD.107.054009
RBI-ThPhys-2022-46, WUB/22
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We investigate exclusive electroproduction of $\pi^-\Delta^{++}$ within the handbag approach in which the helicity amplitudes factorize into generalized parton distributions (GPDs) and hard partonic subprocesses. We define the $p-\Delta$ transversity GPDs while the helicity non-flip GPDs are taken from the literature...
[ { "created": "Thu, 17 Nov 2022 11:41:59 GMT", "version": "v1" } ]
2023-03-29
[ [ "Kroll", "Peter", "" ], [ "Passek-Kumerički", "Kornelija", "" ] ]
We investigate exclusive electroproduction of $\pi^-\Delta^{++}$ within the handbag approach in which the helicity amplitudes factorize into generalized parton distributions (GPDs) and hard partonic subprocesses. We define the $p-\Delta$ transversity GPDs while the helicity non-flip GPDs are taken from the literature. ...
hep-ph/0311162
Ted Barnes
Ted Barnes (1 and 2), Steve Godfrey (3) ((1) Department of Physics and Astronomy, University of Tennessee, (2) Physics Division, Oak Ridge National Laboratory, (3) Ottawa-Carleton Institute for Physics, Department of Physics, Carleton University)
Charmonium Options for the X(3872)
11 pages, 5 tables. typos corrected, references and discussion added
Phys.Rev.D69:054008,2004
10.1103/PhysRevD.69.054008
null
hep-ph
null
In this paper we consider all possible 1D and 2P ccbar assignments for the recently discovered X(3872). Taking the experimental mass as input, we give numerical results for the E1 radiative widths as well as the three principal types of strong decays; open-charm, ccbar annihilation and closed-charm hadronic transitio...
[ { "created": "Wed, 12 Nov 2003 21:22:03 GMT", "version": "v1" }, { "created": "Wed, 24 Dec 2003 23:33:30 GMT", "version": "v2" } ]
2008-11-26
[ [ "Barnes", "Ted", "", "1 and 2" ], [ "Godfrey", "Steve", "" ] ]
In this paper we consider all possible 1D and 2P ccbar assignments for the recently discovered X(3872). Taking the experimental mass as input, we give numerical results for the E1 radiative widths as well as the three principal types of strong decays; open-charm, ccbar annihilation and closed-charm hadronic transitions...