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hep-ph/0007147
Elena Goubankova
Elena Gubankova
Flow equations in the light-front QCD
12 pages, LaTeX2e, uses sprocl.sty, Talk presented at the 4th Workshop "Continuous Advances in QCD", Minneapolis, Minnesota, May 12-14, 2000
null
null
null
hep-ph
null
Flow equations method of continuous unitary transformations is used to eliminate the minimal quark-gluon interaction in the light-front quantized QCD Hamiltonian. The coupled differential equations in the two lowest Fock sectors correspond to the renormalization of the light-front gluon mass and the generation of eff...
[ { "created": "Thu, 13 Jul 2000 23:28:33 GMT", "version": "v1" } ]
2007-05-23
[ [ "Gubankova", "Elena", "" ] ]
Flow equations method of continuous unitary transformations is used to eliminate the minimal quark-gluon interaction in the light-front quantized QCD Hamiltonian. The coupled differential equations in the two lowest Fock sectors correspond to the renormalization of the light-front gluon mass and the generation of effec...
hep-ph/0609143
Sherstnev Alexander
A. Sherstnev
Prospects for b-quark production cross section measurements in pp collisions at the LHC
4 pages, 6 figures. Talk given at the 7th International Conference on Hyperons, Charm And Beauty Hadrons (BEACH 2006), 2-8 July 2006, Lancaster, UK
Nucl.Phys.Proc.Suppl.167:21-24,2007
10.1016/j.nuclphysbps.2006.12.084
null
hep-ph
null
A brief review of theoretical and experimental aspects of $b$-quark production measurements at the LHC.
[ { "created": "Thu, 14 Sep 2006 17:43:29 GMT", "version": "v1" } ]
2008-11-26
[ [ "Sherstnev", "A.", "" ] ]
A brief review of theoretical and experimental aspects of $b$-quark production measurements at the LHC.
1605.08216
Dremin
I.M. Dremin
Critical behavior of cross sections at LHC
12 pages, 1 Fig
null
10.1142/S0217751X16501074
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recent experimental data on elastic scattering of high energy protons show that the critical regime has been reached at LHC energies. The approach to criticality is demonstrated by increase of the ratio of elastic to total cross sections from ISR to LHC energies. At LHC it reaches the value which can result in princi...
[ { "created": "Thu, 26 May 2016 10:14:30 GMT", "version": "v1" }, { "created": "Wed, 8 Jun 2016 11:49:14 GMT", "version": "v2" } ]
2016-08-03
[ [ "Dremin", "I. M.", "" ] ]
Recent experimental data on elastic scattering of high energy protons show that the critical regime has been reached at LHC energies. The approach to criticality is demonstrated by increase of the ratio of elastic to total cross sections from ISR to LHC energies. At LHC it reaches the value which can result in principa...
hep-ph/0110006
Yuri V. Novozhilov
Victor Novozhilov and Yuri Novozhilov (St.Petersburg University)
Colour chiral solitons in low energy QCD
12 pages, Latex, Discussion of the confining potential between colour solitons and journal reference are added
Physics Letters B 522 (2001) 49-56
10.1016/S0370-2693(01)01263-1
null
hep-ph
null
We derive an effective colour chiral action with a background gauge field. The action describes configurations of soliton-skyrmion type. Kinetic term constant $f_0^2$, analogue of $f_\pi ^2$, is a phenomenological dimensional parameter of the model; $d=4$ terms are unique up to the choice of background gauge field. T...
[ { "created": "Sat, 29 Sep 2001 04:55:10 GMT", "version": "v1" }, { "created": "Tue, 9 Apr 2002 18:10:27 GMT", "version": "v2" } ]
2009-11-07
[ [ "Novozhilov", "Victor", "", "St.Petersburg University" ], [ "Novozhilov", "Yuri", "", "St.Petersburg University" ] ]
We derive an effective colour chiral action with a background gauge field. The action describes configurations of soliton-skyrmion type. Kinetic term constant $f_0^2$, analogue of $f_\pi ^2$, is a phenomenological dimensional parameter of the model; $d=4$ terms are unique up to the choice of background gauge field. The...
1802.01805
Mosleh Almarashi
M. M. Almarashi
The second lightest CP-even Higgs boson signals in the NMSSM at the LHC
12 pages, 6 figures, 37 subfigures
Int.J.Mod.Phys. A33 (2018) 1850071
10.1142/S0217751X18500719
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the signal rates of the second lightest CP-even Higgs boson, $h_2$, of the NMSSM produced in gluon fusion, in association with bottom quarks and in association with top quarks, which is not the SM-like Higgs boson, at the LHC. We evaluate the production rates of the $h_2$ in the SM fermionic and bosonic fina...
[ { "created": "Tue, 6 Feb 2018 05:35:22 GMT", "version": "v1" }, { "created": "Thu, 1 Mar 2018 07:49:52 GMT", "version": "v2" }, { "created": "Mon, 2 Apr 2018 04:50:41 GMT", "version": "v3" } ]
2018-04-05
[ [ "Almarashi", "M. M.", "" ] ]
We study the signal rates of the second lightest CP-even Higgs boson, $h_2$, of the NMSSM produced in gluon fusion, in association with bottom quarks and in association with top quarks, which is not the SM-like Higgs boson, at the LHC. We evaluate the production rates of the $h_2$ in the SM fermionic and bosonic final ...
1708.09849
Gauthier Durieux
Gauthier Durieux
Precision constraints on the top-quark effective field theory at future lepton colliders
5 pages, contribution to DIS 2017 proceedings
null
null
DESY 17-123
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We examine the constraints that future lepton colliders would impose on the effective field theory describing modifications of top-quark interactions beyond the standard model, through measurements of the $e^+e^-\to bW^+\:\bar bW^-$ process. Statistically optimal observables are exploited to constrain simultaneously ...
[ { "created": "Thu, 31 Aug 2017 17:55:10 GMT", "version": "v1" } ]
2017-09-01
[ [ "Durieux", "Gauthier", "" ] ]
We examine the constraints that future lepton colliders would impose on the effective field theory describing modifications of top-quark interactions beyond the standard model, through measurements of the $e^+e^-\to bW^+\:\bar bW^-$ process. Statistically optimal observables are exploited to constrain simultaneously an...
hep-ph/9311325
null
Matthias Neubert
QCD-Based Interpretation of the Lepton Spectrum in Inclusive $\bar B\to X_u\,\ell\,\bar\nu$ Decays
17 pages LaTeX, 3 post- script figures available upon request, CERN-TH.7087/93
Phys.Rev.D49:3392-3398,1994
10.1103/PhysRevD.49.3392
null
hep-ph
null
We present a QCD-based approach to the endpoint region of the lepton spectrum in $\bar B\to X_u\,\ell\,\bar\nu$ decays. We introduce a genuinely nonperturbative form factor, the shape function, which describes the fall-off of the spectrum close to the endpoint. The moments of this function are related to forward scat...
[ { "created": "Sun, 21 Nov 1993 18:55:37 GMT", "version": "v1" } ]
2010-11-01
[ [ "Neubert", "Matthias", "" ] ]
We present a QCD-based approach to the endpoint region of the lepton spectrum in $\bar B\to X_u\,\ell\,\bar\nu$ decays. We introduce a genuinely nonperturbative form factor, the shape function, which describes the fall-off of the spectrum close to the endpoint. The moments of this function are related to forward scatte...
1006.2304
Jordy Vries de
J. de Vries, E. Mereghetti, R. G. E. Timmermans, U. van Kolck
The Nucleon Electric Dipole Form Factor From Dimension-Six Time-Reversal Violation
null
Phys.Lett.B695:268-274,2011
10.1016/j.physletb.2010.11.042
INT-PUB-10-026
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the electric dipole form factor of the nucleon that arises as a low-energy manifestation of time-reversal violation in quark-gluon interactions of effective dimension 6: the quark electric and chromoelectric dipole moments, and the gluon chromoelectric dipole moment. We use the framework of two-flavor ch...
[ { "created": "Fri, 11 Jun 2010 13:35:24 GMT", "version": "v1" }, { "created": "Mon, 20 Dec 2010 09:28:15 GMT", "version": "v2" } ]
2011-01-04
[ [ "de Vries", "J.", "" ], [ "Mereghetti", "E.", "" ], [ "Timmermans", "R. G. E.", "" ], [ "van Kolck", "U.", "" ] ]
We calculate the electric dipole form factor of the nucleon that arises as a low-energy manifestation of time-reversal violation in quark-gluon interactions of effective dimension 6: the quark electric and chromoelectric dipole moments, and the gluon chromoelectric dipole moment. We use the framework of two-flavor chir...
1112.3570
Kirill Semenov-Tian-Shansky
J. P. Lansberg, B. Pire, K. Semenov-Tian-Shansky and L. Szymanowski
A consistent model for \pi N transition distribution amplitudes and backward pion electroproduction
39 pages, 9 figures
null
10.1103/PhysRevD.85.054021
CPHT-RR100.1111; LPT-11-114
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The extension of the concept of generalized parton distributions leads to the introduction of baryon to meson transition distribution amplitudes (TDAs), non-diagonal matrix elements of the nonlocal three quark operator between a nucleon and a meson state. We present a general framework for modelling nucleon to pion (...
[ { "created": "Thu, 15 Dec 2011 17:14:25 GMT", "version": "v1" } ]
2015-06-03
[ [ "Lansberg", "J. P.", "" ], [ "Pire", "B.", "" ], [ "Semenov-Tian-Shansky", "K.", "" ], [ "Szymanowski", "L.", "" ] ]
The extension of the concept of generalized parton distributions leads to the introduction of baryon to meson transition distribution amplitudes (TDAs), non-diagonal matrix elements of the nonlocal three quark operator between a nucleon and a meson state. We present a general framework for modelling nucleon to pion ($\...
2005.05658
Marius Utheim
Torbj\"orn Sj\"ostrand, Marius Utheim
A Framework for Hadronic Rescattering in pp Collisions
61 pages, 24 figures, 10 tables
null
10.1140/epjc/s10052-020-8399-3
LU TP 20-11, MCnet-20-12
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this article, a framework for hadronic rescattering in the general-purpose Pythia event generator is introduced. The starting point is the recently presented space-time picture of the hadronization process. It is now extended with a tracing of the subsequent motion of the primary hadrons, including both subsequent...
[ { "created": "Tue, 12 May 2020 10:08:33 GMT", "version": "v1" } ]
2020-10-28
[ [ "Sjöstrand", "Torbjörn", "" ], [ "Utheim", "Marius", "" ] ]
In this article, a framework for hadronic rescattering in the general-purpose Pythia event generator is introduced. The starting point is the recently presented space-time picture of the hadronization process. It is now extended with a tracing of the subsequent motion of the primary hadrons, including both subsequent s...
2201.08139
Xiao-Min Shen
Xiao-Min Shen, YaLu Hu, ChuanLe Sun, Jun Gao
Decay of the charged Higgs boson and the top quark in two-Higgs-doublet model at NNLO in QCD
27 pages, 8 figures; typos corrected
null
10.1007/JHEP05(2022)157
null
hep-ph hep-ex
http://creativecommons.org/licenses/by-nc-nd/4.0/
We present numerical calculations of the partial width of the charged Higgs boson decay into a top quark, $H^- \rightarrow \bar{t} + b + X$, and the partial width of the top quark decay into a light charged Higgs boson $t \rightarrow H^+ + b + X$ at next-to-next-to-leading order (NNLO) in QCD, based on a factorizatio...
[ { "created": "Thu, 20 Jan 2022 12:32:31 GMT", "version": "v1" }, { "created": "Tue, 24 May 2022 07:23:03 GMT", "version": "v2" }, { "created": "Wed, 29 Jun 2022 06:21:10 GMT", "version": "v3" }, { "created": "Wed, 6 Jul 2022 06:45:20 GMT", "version": "v4" } ]
2022-07-07
[ [ "Shen", "Xiao-Min", "" ], [ "Hu", "YaLu", "" ], [ "Sun", "ChuanLe", "" ], [ "Gao", "Jun", "" ] ]
We present numerical calculations of the partial width of the charged Higgs boson decay into a top quark, $H^- \rightarrow \bar{t} + b + X$, and the partial width of the top quark decay into a light charged Higgs boson $t \rightarrow H^+ + b + X$ at next-to-next-to-leading order (NNLO) in QCD, based on a factorization ...
hep-ph/9504245
null
Wilfried Buchmuller (DESY)
Scaling and Diffraction in Deep Inelastic Scattering
8 pages
Phys.Lett. B353 (1995) 335-339
10.1016/0370-2693(95)00597-E
DESY 95-065
hep-ph
null
We pursue the hypothesis that the events with a large rapidity gap, observed at HERA, reflect the scattering of electrons off lumps of wee partons inside the proton. A simple scaling behaviour is predicted for the diffractive structure functions, which are related to the inclusive structure function $F_2(x,Q^2)$ at s...
[ { "created": "Thu, 6 Apr 1995 16:46:34 GMT", "version": "v1" } ]
2009-10-28
[ [ "Buchmuller", "Wilfried", "", "DESY" ] ]
We pursue the hypothesis that the events with a large rapidity gap, observed at HERA, reflect the scattering of electrons off lumps of wee partons inside the proton. A simple scaling behaviour is predicted for the diffractive structure functions, which are related to the inclusive structure function $F_2(x,Q^2)$ at sma...
1610.00364
Holger Frits Bech Nielsen
Holger Frits Bech Nielsen
F(750), We Miss You, as Bound State of 6 Top and 6 Anti top
minor corrections in calculation and commas and a few references added. arXiv admin note: text overlap with arXiv:1607.07907, adding few citations
null
10.1142/S0217751X16501864
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We collect and estimate support for our long speculated "multiple point principle" saying that there should be several vacua all having (compared to the scales of high energy physics) very low energy densities. In pure Standard Model we suggest there being three by "multiple point principle" low energy density vacua,...
[ { "created": "Sun, 2 Oct 2016 22:52:46 GMT", "version": "v1" }, { "created": "Wed, 5 Oct 2016 14:53:32 GMT", "version": "v2" } ]
2017-02-01
[ [ "Nielsen", "Holger Frits Bech", "" ] ]
We collect and estimate support for our long speculated "multiple point principle" saying that there should be several vacua all having (compared to the scales of high energy physics) very low energy densities. In pure Standard Model we suggest there being three by "multiple point principle" low energy density vacua, "...
1402.0837
Anatoliy Khrykin
A.S.Khrykin
On the existence of the $\it NN$-decoupled dibaryon $d^\ast_1$(1956)
Contribution to the MENU2013 Proceedings
null
null
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present strong experimental evidence for the existence of a nonstrange $\it NN$-decoupled dibaryon with a mass of about 1956 MeV stable against strong decay, which is a very likely candidate for long-sought multiquark hadrons with the baryon number B=2. We start by presenting the first evidence for the existence o...
[ { "created": "Tue, 4 Feb 2014 19:21:27 GMT", "version": "v1" } ]
2014-02-05
[ [ "Khrykin", "A. S.", "" ] ]
We present strong experimental evidence for the existence of a nonstrange $\it NN$-decoupled dibaryon with a mass of about 1956 MeV stable against strong decay, which is a very likely candidate for long-sought multiquark hadrons with the baryon number B=2. We start by presenting the first evidence for the existence of ...
hep-ph/9612349
Nikolai Uraltsev
N.G. Uraltsev
The Heavy Quark Expansion
30 pages, 3 figures in the text; LaTeX. Talk given at the Symposium on Radiative Corrections (CRAD96), Cracow, 1-5 August 1996. To appear in Proceedings of "CRAD96"
Acta Phys.Polon.B28:755-787,1997
null
UND-HEP-96-BIG08
hep-ph
null
I review the status of the modern theoretical approach to weak decays of heavy flavor hadrons based on the 1/m_Q expansion in QCD. The qualitative features are explained and the subtleties in simultaneously incorporating perturbative and power-suppressed effects are addressed. A few topical phenomenological applicati...
[ { "created": "Fri, 13 Dec 1996 03:04:51 GMT", "version": "v1" } ]
2014-11-17
[ [ "Uraltsev", "N. G.", "" ] ]
I review the status of the modern theoretical approach to weak decays of heavy flavor hadrons based on the 1/m_Q expansion in QCD. The qualitative features are explained and the subtleties in simultaneously incorporating perturbative and power-suppressed effects are addressed. A few topical phenomenological application...
hep-ph/9409266
Masahiro Yamaguchi
Izumi Joichi and Masahiro Yamaguchi
Heavy Polonyi Field as a Solution of the Polonyi Problem
null
Phys.Lett. B342 (1995) 111-116
10.1016/0370-2693(94)01338-D
null
hep-ph
null
We study properties of the Polonyi field in the renormalizable hidden sector in supergravity models. It is shown that radiative corrections induce a sizable coupling of the Polonyi field to gravitinos as well as raise its mass to an intermediate scale. We find it serves a solution of the Polonyi problem and show that...
[ { "created": "Fri, 9 Sep 1994 05:28:33 GMT", "version": "v1" } ]
2009-10-28
[ [ "Joichi", "Izumi", "" ], [ "Yamaguchi", "Masahiro", "" ] ]
We study properties of the Polonyi field in the renormalizable hidden sector in supergravity models. It is shown that radiative corrections induce a sizable coupling of the Polonyi field to gravitinos as well as raise its mass to an intermediate scale. We find it serves a solution of the Polonyi problem and show that t...
2201.00832
Damiano Anselmi
Damiano Anselmi
Dressed propagators, fakeon self-energy and peak uncertainty
39 pages, 6 figures; v2: JHEP
J. High Energ. Phys. 2022, 58 (2022)
10.1007/JHEP06(2022)058
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the resummation of self-energy diagrams into dressed propagators in the case of purely virtual particles and compare the results with those obtained for physical particles and ghosts. The three geometric series differ by infinitely many contact terms, which do not admit well-defined sums. The peak region, wh...
[ { "created": "Mon, 3 Jan 2022 19:00:09 GMT", "version": "v1" }, { "created": "Tue, 14 Jun 2022 08:59:18 GMT", "version": "v2" } ]
2022-06-15
[ [ "Anselmi", "Damiano", "" ] ]
We study the resummation of self-energy diagrams into dressed propagators in the case of purely virtual particles and compare the results with those obtained for physical particles and ghosts. The three geometric series differ by infinitely many contact terms, which do not admit well-defined sums. The peak region, whic...
hep-ph/9704298
Bryan Webber
Yu.L. Dokshitzer and B.R. Webber
Power Corrections to Event Shape Distributions
11 pages, LaTeX, 2 figures; further reference to related work by Korchemsky and Sterman added 30/4/97
Phys.Lett. B404 (1997) 321-327
10.1016/S0370-2693(97)00573-X
Cavendish-HEP-97/2
hep-ph
null
We estimate the effects of non-perturbative physics on the differential distributions of infrared- and collinear-safe $e^+e^-$ event shape variables, by extending the notion of an infrared-regular effective strong coupling, which accounts for the non-perturbative corrections to the mean values of several shape variab...
[ { "created": "Fri, 11 Apr 1997 17:34:27 GMT", "version": "v1" }, { "created": "Wed, 30 Apr 1997 09:45:28 GMT", "version": "v2" } ]
2009-10-30
[ [ "Dokshitzer", "Yu. L.", "" ], [ "Webber", "B. R.", "" ] ]
We estimate the effects of non-perturbative physics on the differential distributions of infrared- and collinear-safe $e^+e^-$ event shape variables, by extending the notion of an infrared-regular effective strong coupling, which accounts for the non-perturbative corrections to the mean values of several shape variable...
hep-ph/0306266
Zack Sullivan
Zack Sullivan (Fermilab)
How to rule out Little Higgs (and constrain many other models) at the LHC
Talk given at the XXXVIIIth Rencontres de Moriond: QCD and Hadronic Interactions, 2003, 4 pg., latex, 5 ps figures
null
null
null
hep-ph hep-ex
null
In this talk I describe how to discover or rule out the existence of W^{prime} bosons at the CERN Large Hadron Collider as a function of arbitrary couplings and W^{prime} masses. If W^{prime} bosons are not found, I demonstrate the 95% confidence-level exclusions that can be reached for several classes of models. In ...
[ { "created": "Thu, 26 Jun 2003 20:33:40 GMT", "version": "v1" } ]
2007-05-23
[ [ "Sullivan", "Zack", "", "Fermilab" ] ]
In this talk I describe how to discover or rule out the existence of W^{prime} bosons at the CERN Large Hadron Collider as a function of arbitrary couplings and W^{prime} masses. If W^{prime} bosons are not found, I demonstrate the 95% confidence-level exclusions that can be reached for several classes of models. In pa...
hep-ph/9403354
Yoshio Koide
Yoshio Koide and Hideo Fusaoka
Seesaw-Type Quark and Lepton Mass Matrices and U(3)-Family Nonet Higgs Bosons
10 pages, Revised version of US-94-02, Latex file
null
null
null
hep-ph
null
A unified mass matrix model of quarks and leptons with a seesaw-type form $M_f=m M_F^{-1} m$ is proposed on the basis of a non-standard Higgs scenario. The matrix $m$ is provided by U(3)-family nonet bosons $\phi$, and the matrix $M_F$ is a mass matrix of heavy fermions $F_i$ corresponding to the ordinary fermions $f...
[ { "created": "Thu, 24 Mar 1994 10:41:19 GMT", "version": "v1" }, { "created": "Tue, 5 Jul 1994 05:48:59 GMT", "version": "v2" } ]
2008-02-03
[ [ "Koide", "Yoshio", "" ], [ "Fusaoka", "Hideo", "" ] ]
A unified mass matrix model of quarks and leptons with a seesaw-type form $M_f=m M_F^{-1} m$ is proposed on the basis of a non-standard Higgs scenario. The matrix $m$ is provided by U(3)-family nonet bosons $\phi$, and the matrix $M_F$ is a mass matrix of heavy fermions $F_i$ corresponding to the ordinary fermions $f_i...
1605.08923
Hamad Alhendi
H. I. Alrebdi, H. A. Alhendi and T. Barakat
The Higgs Boson Mass from Three-loop Effective Potential of Massless Standard Model
19 pages, 4 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The effective potential of massless standard model (SM) is calculated up to three-loop order. The stability of the effective potential and the Higgs boson mass are investigated up to three-loop order. We found that, Higgs boson mass $m_{H}$ of one-loop order is large. The two-loop and three-loop results are not appre...
[ { "created": "Sat, 28 May 2016 18:28:54 GMT", "version": "v1" } ]
2016-05-31
[ [ "Alrebdi", "H. I.", "" ], [ "Alhendi", "H. A.", "" ], [ "Barakat", "T.", "" ] ]
The effective potential of massless standard model (SM) is calculated up to three-loop order. The stability of the effective potential and the Higgs boson mass are investigated up to three-loop order. We found that, Higgs boson mass $m_{H}$ of one-loop order is large. The two-loop and three-loop results are not appreci...
hep-ph/9812393
Oleg Teryaev
M.V. Polyakov, A. Schaefer and O. V. Teryaev
The intrinsic charm contribution to the proton spin
LATEX, 6 pages
Phys.Rev.D60:051502,1999
10.1103/PhysRevD.60.051502
RUB-TPII-22/98; TPR-98-38
hep-ph
null
The charm quark contribution to the first moment of $g_1(x,Q^2)$ is calculated using a heavy mass expansion of the divergence of the singlet axial current. It is shown to be small.
[ { "created": "Wed, 16 Dec 1998 16:34:27 GMT", "version": "v1" } ]
2009-12-30
[ [ "Polyakov", "M. V.", "" ], [ "Schaefer", "A.", "" ], [ "Teryaev", "O. V.", "" ] ]
The charm quark contribution to the first moment of $g_1(x,Q^2)$ is calculated using a heavy mass expansion of the divergence of the singlet axial current. It is shown to be small.
hep-ph/9708242
null
Keiichi Akama (Saitama Medical College) and Takashi Hattori (Kanagawa Dental College)
Complementarity between Gauge-Boson Compositeness and Asymptotic Freedom
5 pages, revtex
null
null
SMC-PHYS-154
hep-ph
null
We derive and solve the compositeness condition for the SU(N_c) gauge boson at the next-to-leading order in 1/N_f (N_f is the number of flavors) and the leading order in ln(\Lambda ^2) (\Lambda is the compositeness scale) to obtain an expression for the gauge coupling constant in terms of the compositeness scale. It ...
[ { "created": "Thu, 31 Jul 1997 10:07:38 GMT", "version": "v1" }, { "created": "Sat, 13 Sep 1997 07:57:42 GMT", "version": "v2" } ]
2008-02-03
[ [ "Akama", "Keiichi", "", "Saitama Medical College" ], [ "Hattori", "Takashi", "", "Kanagawa\n Dental College" ] ]
We derive and solve the compositeness condition for the SU(N_c) gauge boson at the next-to-leading order in 1/N_f (N_f is the number of flavors) and the leading order in ln(\Lambda ^2) (\Lambda is the compositeness scale) to obtain an expression for the gauge coupling constant in terms of the compositeness scale. It tu...
hep-ph/9706451
Cvetic
C.S. Kim (Yonsei Univ.) and G. Cvetic (Dortmund Univ.)
Flavor democracy and quark mass matrices
LaTeX, 12 pages, one correction in Acknowledgements
null
null
YUMS 97-018, DO-TH 97-15, SNUTP 97-089
hep-ph
null
Based on experimental mass hierarchy, a set of flavor-democratic (FD) quark mass matrices at low energies is discussed. The model predicts CP violation parameters $J_{CP}=(0.3 \pm 0.2) 10^{-4}$ and ${\epsilon'/\epsilon} = (0.6 \pm 0.5) 10^{-3}$. However, this simple FD model also predicts a physical top quark mass no...
[ { "created": "Mon, 23 Jun 1997 08:54:05 GMT", "version": "v1" }, { "created": "Mon, 30 Jun 1997 10:30:06 GMT", "version": "v2" }, { "created": "Wed, 9 Jul 1997 09:11:16 GMT", "version": "v3" } ]
2008-02-03
[ [ "Kim", "C. S.", "", "Yonsei Univ." ], [ "Cvetic", "G.", "", "Dortmund Univ." ] ]
Based on experimental mass hierarchy, a set of flavor-democratic (FD) quark mass matrices at low energies is discussed. The model predicts CP violation parameters $J_{CP}=(0.3 \pm 0.2) 10^{-4}$ and ${\epsilon'/\epsilon} = (0.6 \pm 0.5) 10^{-3}$. However, this simple FD model also predicts a physical top quark mass not ...
2402.00981
Cumrun Vafa
Cumrun Vafa
Swamplandish Unification of the Dark Sector
13 pages
null
null
null
hep-ph gr-qc hep-th
http://creativecommons.org/publicdomain/zero/1.0/
We provide a short overview of recent progress made in our understanding of the dark sector based on the Swampland program which in turn is rooted in lessons from string theory. We explain how the existence of one extra mesoscopic dimension (the ``dark dimension") in the micron range emerges and how this can lead to ...
[ { "created": "Thu, 1 Feb 2024 19:54:09 GMT", "version": "v1" }, { "created": "Fri, 21 Jun 2024 06:11:38 GMT", "version": "v2" } ]
2024-06-24
[ [ "Vafa", "Cumrun", "" ] ]
We provide a short overview of recent progress made in our understanding of the dark sector based on the Swampland program which in turn is rooted in lessons from string theory. We explain how the existence of one extra mesoscopic dimension (the ``dark dimension") in the micron range emerges and how this can lead to a ...
0709.1384
Massimo Blasone Dr
M.Blasone, A.Capolupo, C.R.Ji, G.Vitiello
Flavor states of mixed neutrinos
4 pages, presented at 13th International Symposium on Particles, Strings and Cosmology, PASCOS-07, 2-7 July 2007, Imperial College London
AIPConf.Proc.957:189-192,2007
10.1063/1.2823757
null
hep-ph
null
By resorting to previous results on flavor mixing in Quantum Field Theory, we show how to consistently define flavor states of mixed neutrinos as eigenstates of the flavor charge operators.
[ { "created": "Mon, 10 Sep 2007 13:14:39 GMT", "version": "v1" } ]
2008-11-26
[ [ "Blasone", "M.", "" ], [ "Capolupo", "A.", "" ], [ "Ji", "C. R.", "" ], [ "Vitiello", "G.", "" ] ]
By resorting to previous results on flavor mixing in Quantum Field Theory, we show how to consistently define flavor states of mixed neutrinos as eigenstates of the flavor charge operators.
2208.07521
Wei Kou
Wei Kou, Xiaopeng Wang, Xurong Chen
Page Entropy of Proton System in Deep-Inelastic-Scattering at Small-$x$
6 pages, 2 figures, Accepted by PRD
null
10.1103/PhysRevD.106.096027
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The partons model reveals the dynamical structure of nucleons (protons and neutrons). Studies related to thermodynamic quantities of nucleons are interesting and topical questions. In this work, for the first time we apply Page's theory of the studies of black hole to investigate the entropy of proton system. Inspire...
[ { "created": "Tue, 16 Aug 2022 03:45:45 GMT", "version": "v1" }, { "created": "Fri, 18 Nov 2022 01:22:36 GMT", "version": "v2" } ]
2022-12-14
[ [ "Kou", "Wei", "" ], [ "Wang", "Xiaopeng", "" ], [ "Chen", "Xurong", "" ] ]
The partons model reveals the dynamical structure of nucleons (protons and neutrons). Studies related to thermodynamic quantities of nucleons are interesting and topical questions. In this work, for the first time we apply Page's theory of the studies of black hole to investigate the entropy of proton system. Inspired ...
hep-ph/9510216
Jorge L. Lopez
J. Lopez and D. Nanopoulos
Vanishing Str M^2 in the presence of anomalous U_A(1)
7 pages, no figures, LaTeX
Phys.Lett. B369 (1996) 243-248
10.1016/0370-2693(95)01556-6
CTP-TAMU-37/95, DOE/ER/40717-16
hep-ph hep-th
null
We show that the presence of an anomalous $\rm U_A(1)$ factor in the gauge group of string-derived models may have the new and important phenomenological consequence of allowing the vanishing of ${\rm Str}\,{\cal M}^2$ in the ``shifted" vacuum, that results in the process of cancelling the anomalous $\rm U_A(1)$. The...
[ { "created": "Tue, 3 Oct 1995 18:02:29 GMT", "version": "v1" } ]
2009-10-28
[ [ "Lopez", "J.", "" ], [ "Nanopoulos", "D.", "" ] ]
We show that the presence of an anomalous $\rm U_A(1)$ factor in the gauge group of string-derived models may have the new and important phenomenological consequence of allowing the vanishing of ${\rm Str}\,{\cal M}^2$ in the ``shifted" vacuum, that results in the process of cancelling the anomalous $\rm U_A(1)$. The f...
2304.02060
Zhanduo Tang
Zhanduo Tang and Ralf Rapp
Spin-Dependent Interactions and Heavy-Quark Transport in the QGP
17 pages, 11 figures
null
null
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
We extend a previously constructed T-matrix approach to the quark-gluon plasma (QGP) to include the effects of spin-dependent interactions between partons. Following earlier work within the relativistic quark model, the spin-dependent interactions figure as relativistic corrections to the Cornell potential. When appl...
[ { "created": "Tue, 4 Apr 2023 18:19:46 GMT", "version": "v1" }, { "created": "Fri, 7 Apr 2023 06:20:55 GMT", "version": "v2" }, { "created": "Tue, 8 Aug 2023 18:53:43 GMT", "version": "v3" } ]
2023-08-10
[ [ "Tang", "Zhanduo", "" ], [ "Rapp", "Ralf", "" ] ]
We extend a previously constructed T-matrix approach to the quark-gluon plasma (QGP) to include the effects of spin-dependent interactions between partons. Following earlier work within the relativistic quark model, the spin-dependent interactions figure as relativistic corrections to the Cornell potential. When applie...
2203.07495
Sri Aditya Gadam
Wolfgang Altmannshofer, Sri Aditya Gadam, Stefano Profumo
Snowmass White Paper: Probing New Physics with $\mu^+ \mu^- \to bs$ at a Muon Collider
Contribution to Snowmass 2021
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this white paper for the Snowmass process, we discuss the prospects of probing new physics explanations of the persistent rare $B$ decay anomalies with a muon collider. If the anomalies are indirect signs of heavy new physics, non-standard rates for $\mu^+ \mu^- \to b s$ production should be observed with high sig...
[ { "created": "Mon, 14 Mar 2022 21:04:15 GMT", "version": "v1" } ]
2022-03-16
[ [ "Altmannshofer", "Wolfgang", "" ], [ "Gadam", "Sri Aditya", "" ], [ "Profumo", "Stefano", "" ] ]
In this white paper for the Snowmass process, we discuss the prospects of probing new physics explanations of the persistent rare $B$ decay anomalies with a muon collider. If the anomalies are indirect signs of heavy new physics, non-standard rates for $\mu^+ \mu^- \to b s$ production should be observed with high signi...
hep-ph/0301134
Stefan Michalski
Stefan Michalski
Nonequilibrium dynamics of the O(N) linear sigma model
Based on an article published in Phys.Rev.D65, 065019 (2002) written in collaboration with Jurgen Baacke. Presented at International Workshop on Strong and Electroweak Matter (SEWM 2002), Heidelberg, Germany, 2-5 Oct 2002
null
null
null
hep-ph
null
We investigate the out-of-equilibrium evolution of a classical background field and its quantum fluctuations in the scalar O(N) model with spontaneous symmetry breaking. We consider the 2-loop 2PI effective action in the Hartree approximation, i.e., including bubble resummation but without non-local contributions to ...
[ { "created": "Fri, 17 Jan 2003 12:56:56 GMT", "version": "v1" } ]
2007-05-23
[ [ "Michalski", "Stefan", "" ] ]
We investigate the out-of-equilibrium evolution of a classical background field and its quantum fluctuations in the scalar O(N) model with spontaneous symmetry breaking. We consider the 2-loop 2PI effective action in the Hartree approximation, i.e., including bubble resummation but without non-local contributions to th...
1510.00204
Pratishruti Saha
Pratishruti Saha, Ken Kiers, Bhubanjyoti Bhattacharya, David London, Alejandro Szynkman, Jordan Melendez
Measuring CP-Violating Observables in Rare Top Decays at the LHC
Published version
Phys. Rev. D 93, 054044 (2016)
10.1103/PhysRevD.93.054044
UdeM-GPP-TH-15-243
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we consider CP-violating new-physics contributions to the decay $t \to b \bar b c$. We examine the prospects for detecting such new physics at the LHC, which requires studying the process $gg \to t (\to b \bar b c) \bar t (\to \bar b \ell \bar \nu)$. We find two observables that can be used to reveal th...
[ { "created": "Thu, 1 Oct 2015 12:48:29 GMT", "version": "v1" }, { "created": "Fri, 22 Apr 2016 04:35:29 GMT", "version": "v2" } ]
2016-04-25
[ [ "Saha", "Pratishruti", "" ], [ "Kiers", "Ken", "" ], [ "Bhattacharya", "Bhubanjyoti", "" ], [ "London", "David", "" ], [ "Szynkman", "Alejandro", "" ], [ "Melendez", "Jordan", "" ] ]
In this paper we consider CP-violating new-physics contributions to the decay $t \to b \bar b c$. We examine the prospects for detecting such new physics at the LHC, which requires studying the process $gg \to t (\to b \bar b c) \bar t (\to \bar b \ell \bar \nu)$. We find two observables that can be used to reveal the ...
1012.0245
Daniele Binosi
Daniele Binosi
A dynamical study of the Kugo-Ojima function
3 pages, 3 figures. Talk presented at the Quark Confinement and the Hadron Spectrum - Madrid 2010, August 30th - September 3rd 2010, Madrid, Spain
null
10.1063/1.3574963
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
As has been recently realized, a certain two-point function $\Lambda$ -- and its associated form factors G and L -- play a prominent role in the PT-BFM formulation of the Schwinger-Dyson equations used to study gauge-invariantly the gluon and ghost propagators. After showing that in the (background) Landau gauge $\La...
[ { "created": "Wed, 1 Dec 2010 16:57:06 GMT", "version": "v1" } ]
2015-05-20
[ [ "Binosi", "Daniele", "" ] ]
As has been recently realized, a certain two-point function $\Lambda$ -- and its associated form factors G and L -- play a prominent role in the PT-BFM formulation of the Schwinger-Dyson equations used to study gauge-invariantly the gluon and ghost propagators. After showing that in the (background) Landau gauge $\Lamb...
2402.16491
Surender Verma Ph. D.
Tapender, Surender Verma and Sanjeev Kumar
On Lepton Flavor Violation and Dark Matter in Scotogenic model with Trimaximal Mixing
40 pages, 11 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We examine the Scotogenic model employing the TM$_2$ mixing matrix, $U_{\text{TM}_2}$, for neutrinos and parameterize the Yukawa coupling matrix $y$ based on the diagonalization condition for the neutrino mass matrix, $m_{\nu}$. Our investigation centers on analyzing the relic density of cold dark matter ($\Omega h^2...
[ { "created": "Mon, 26 Feb 2024 11:16:25 GMT", "version": "v1" }, { "created": "Wed, 26 Jun 2024 06:39:59 GMT", "version": "v2" } ]
2024-06-27
[ [ "Tapender", "", "" ], [ "Verma", "Surender", "" ], [ "Kumar", "Sanjeev", "" ] ]
We examine the Scotogenic model employing the TM$_2$ mixing matrix, $U_{\text{TM}_2}$, for neutrinos and parameterize the Yukawa coupling matrix $y$ based on the diagonalization condition for the neutrino mass matrix, $m_{\nu}$. Our investigation centers on analyzing the relic density of cold dark matter ($\Omega h^2$)...
2010.06947
Nikolaos Syrrakos
Dhimiter D. Canko and Nikolaos Syrrakos
Resummation methods for Master Integrals
20 pages, 3 figures and 2 tables, section 3.3 rewritten, version accepted for publication to JHEP
null
10.1007/JHEP02(2021)080
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present in detail two resummation methods emerging from the application of the Simplified Differential Equations approach to a canonical basis of master integrals. The first one is a method which allows for an easy determination of the boundary conditions, since it finds relations between the boundaries of the bas...
[ { "created": "Wed, 14 Oct 2020 10:50:55 GMT", "version": "v1" }, { "created": "Wed, 4 Nov 2020 11:10:49 GMT", "version": "v2" }, { "created": "Tue, 29 Dec 2020 08:52:23 GMT", "version": "v3" } ]
2021-02-24
[ [ "Canko", "Dhimiter D.", "" ], [ "Syrrakos", "Nikolaos", "" ] ]
We present in detail two resummation methods emerging from the application of the Simplified Differential Equations approach to a canonical basis of master integrals. The first one is a method which allows for an easy determination of the boundary conditions, since it finds relations between the boundaries of the basis...
2203.06262
Benjamin Monreal
Benjamin Monreal
High-pressure TPCs in pressurized caverns: opportunities in dark matter and neutrino physics
Snowmass 2022 whitepaper, 14 pages, 2 figures
null
null
null
hep-ph nucl-ex physics.ins-det
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The natural gas and hydrogen storage industries have experience creating huge, pressurized underground spaces. The most common of these is "solution mining", a method for making brine-filled cavities in salt formations. Unlike conventionally-mined underground spaces, these spaces are (a) inexpensive to construct and ...
[ { "created": "Fri, 11 Mar 2022 21:41:38 GMT", "version": "v1" } ]
2022-03-15
[ [ "Monreal", "Benjamin", "" ] ]
The natural gas and hydrogen storage industries have experience creating huge, pressurized underground spaces. The most common of these is "solution mining", a method for making brine-filled cavities in salt formations. Unlike conventionally-mined underground spaces, these spaces are (a) inexpensive to construct and op...
2404.00298
Xu Cao
Xu Cao, Yu-Tie Liang, Rong-Gang Ping
Production and decay of hyperons in a transversely polarized electron-positron collider
10 pages, 7 figures, typos corrected, figures 3 and 7 updated, published version
PHYS. REV. D 110, 014035 (2024)
10.1103/PhysRevD.110.014035
null
hep-ph
http://creativecommons.org/licenses/by-sa/4.0/
The self-polarization of relativistic electrons or positrons moving in a magnetic field at a storage ring occurs through the emission of spin-flip synchrotron radiation, known as the Sokolov-Ternov effect. The resulting transverse polarizations of the colliding electrons and positrons, away from the depolarization re...
[ { "created": "Sat, 30 Mar 2024 09:22:37 GMT", "version": "v1" }, { "created": "Mon, 15 Jul 2024 01:14:54 GMT", "version": "v2" } ]
2024-07-24
[ [ "Cao", "Xu", "" ], [ "Liang", "Yu-Tie", "" ], [ "Ping", "Rong-Gang", "" ] ]
The self-polarization of relativistic electrons or positrons moving in a magnetic field at a storage ring occurs through the emission of spin-flip synchrotron radiation, known as the Sokolov-Ternov effect. The resulting transverse polarizations of the colliding electrons and positrons, away from the depolarization reso...
hep-ph/9212234
null
Michael J. Booth and Gerard Jungman
P and T Violation From Certain Dimension Eight Weinberg Operators
6 pages, EFI-92-51
Phys.Rev.D47:4828-4829,1993
10.1103/PhysRevD.47.R4828
null
hep-ph
null
Dimension eight operators of the Weinberg type have been shown to give important contributions to CP violating phenomena, such as the electric dipole moment of the neutron. In this note we show how operators related to these (and expected to occur on equal footing) can give rise to time-reversal violating phenomena s...
[ { "created": "Tue, 8 Dec 1992 01:15:07 GMT", "version": "v1" } ]
2009-12-30
[ [ "Booth", "Michael J.", "" ], [ "Jungman", "Gerard", "" ] ]
Dimension eight operators of the Weinberg type have been shown to give important contributions to CP violating phenomena, such as the electric dipole moment of the neutron. In this note we show how operators related to these (and expected to occur on equal footing) can give rise to time-reversal violating phenomena suc...
1901.05863
Jean-Rene Cudell
J.R. Cudell and O.V. Selyugin
TOTEM data and the real part of the hadron elastic amplitude at 13 TeV
9 pages, 5 figures. New section on the evaluation of the theoretical error
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyse the 13 TeV TOTEM data on elastic proton-proton scattering through a thorough statistical analysis, and obtain that $\rho=0.096\pm 0.006$ and $\sigma_{tot}=(107.5\pm 1.5)$ mb. Theoretical errors could lower the cross section by about 2 mb and increase $\rho$ by about 0.002. We also show that these results d...
[ { "created": "Thu, 17 Jan 2019 16:10:28 GMT", "version": "v1" }, { "created": "Tue, 21 May 2019 15:12:21 GMT", "version": "v2" } ]
2019-05-22
[ [ "Cudell", "J. R.", "" ], [ "Selyugin", "O. V.", "" ] ]
We analyse the 13 TeV TOTEM data on elastic proton-proton scattering through a thorough statistical analysis, and obtain that $\rho=0.096\pm 0.006$ and $\sigma_{tot}=(107.5\pm 1.5)$ mb. Theoretical errors could lower the cross section by about 2 mb and increase $\rho$ by about 0.002. We also show that these results do ...
2403.09511
Xiao-Hui Hu
Xiao-Hui Hu, Cai Ping Jia, Fu Sheng Yu, Ye Xing
The study of weak decays of doubly charmed baryons within rescattering mechanism
22 pages, 4 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The doubly charmed baryon $\Xi_{cc}^{++}$ has been observed by LHCb through the non-leptonic decay modes of $\Xi_{cc}^{++}\to\Lambda_{c}^{+}K^{-}\pi^{+}\pi^{+}$ and $\Xi_{c}^{+}\pi^{+}$ in 2017. After that, the experimentalists turn their attention to finding other doubly charmed baryons $\Xi_{cc}^{+}$ and $\Omega_{c...
[ { "created": "Thu, 14 Mar 2024 15:56:41 GMT", "version": "v1" } ]
2024-03-15
[ [ "Hu", "Xiao-Hui", "" ], [ "Jia", "Cai Ping", "" ], [ "Yu", "Fu Sheng", "" ], [ "Xing", "Ye", "" ] ]
The doubly charmed baryon $\Xi_{cc}^{++}$ has been observed by LHCb through the non-leptonic decay modes of $\Xi_{cc}^{++}\to\Lambda_{c}^{+}K^{-}\pi^{+}\pi^{+}$ and $\Xi_{c}^{+}\pi^{+}$ in 2017. After that, the experimentalists turn their attention to finding other doubly charmed baryons $\Xi_{cc}^{+}$ and $\Omega_{cc}...
hep-ph/0101184
Khrykin
A.S.Khrykin
Study of two-photon production process in proton-proton collisions below the pion production threshold
6 pages, LaTex, 2 eps-figures; Talk given at the XV International Seminar on High Energy Physics Problems, Dubna, Russia, September 25-29,2000, to be published in the proceeding
null
null
null
hep-ph
null
The energy spectrum for high energy $\gamma$-rays ($E_\gamma \geq 10$ MeV) from the process $pp \to \gamma \gamma X$ emitted at $90^0$ in the laboratory frame has been measured at an energy below the pion production threshold, namely, at 216 MeV. The resulting photon energy spectrum extracted from $\gamma - \gamma$ c...
[ { "created": "Tue, 16 Jan 2001 17:33:50 GMT", "version": "v1" } ]
2007-05-23
[ [ "Khrykin", "A. S.", "" ] ]
The energy spectrum for high energy $\gamma$-rays ($E_\gamma \geq 10$ MeV) from the process $pp \to \gamma \gamma X$ emitted at $90^0$ in the laboratory frame has been measured at an energy below the pion production threshold, namely, at 216 MeV. The resulting photon energy spectrum extracted from $\gamma - \gamma$ coi...
hep-ph/0403236
Werner Rodejohann
W. Rodejohann
Type II See-Saw Mechanism, Deviations from Bimaximal Neutrino Mixing and Leptogenesis
22 pages, 3 figures. Final corrections, matches version in PRD
Phys.Rev.D70:073010,2004
10.1103/PhysRevD.70.073010
SISSA 22/2004/EP
hep-ph
null
A possible interplay of both terms in the type II see-saw formula is illustrated by presenting a novel way to generate deviations from exact bimaximal neutrino mixing. In type II see-saw mechanism with dominance of the non-canonical SU(2)_L triplet term, the conventional see-saw term can give a small contribution to ...
[ { "created": "Mon, 22 Mar 2004 14:11:35 GMT", "version": "v1" }, { "created": "Wed, 5 May 2004 09:24:30 GMT", "version": "v2" }, { "created": "Mon, 26 Jul 2004 13:53:52 GMT", "version": "v3" }, { "created": "Wed, 20 Oct 2004 13:31:25 GMT", "version": "v4" } ]
2014-11-17
[ [ "Rodejohann", "W.", "" ] ]
A possible interplay of both terms in the type II see-saw formula is illustrated by presenting a novel way to generate deviations from exact bimaximal neutrino mixing. In type II see-saw mechanism with dominance of the non-canonical SU(2)_L triplet term, the conventional see-saw term can give a small contribution to th...
1110.4450
Iason Baldes
Iason Baldes, Nicole F. Bell, Raymond R. Volkas
Baryon Number Violating Scalar Diquarks at the LHC
10 pages, 9 figures. v2: references added, some typos corrected. v3: some small corrections to match published version, no change in conclusions
Phys. Rev. D 84, 115019 (2011)
10.1103/PhysRevD.84.115019
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Baryon number violating (BNV) processes are heavily constrained by experiments searching for nucleon decay and neutron-antineutron oscillations. If the baryon number violation occurs via the third generation quarks, however, we may be able to avoid the nucleon stability constraints, thus making such BNV interactions ...
[ { "created": "Thu, 20 Oct 2011 05:52:21 GMT", "version": "v1" }, { "created": "Thu, 27 Oct 2011 06:47:37 GMT", "version": "v2" }, { "created": "Wed, 9 May 2012 07:29:00 GMT", "version": "v3" } ]
2012-05-10
[ [ "Baldes", "Iason", "" ], [ "Bell", "Nicole F.", "" ], [ "Volkas", "Raymond R.", "" ] ]
Baryon number violating (BNV) processes are heavily constrained by experiments searching for nucleon decay and neutron-antineutron oscillations. If the baryon number violation occurs via the third generation quarks, however, we may be able to avoid the nucleon stability constraints, thus making such BNV interactions ac...
1712.04527
Till Martini
Till Martini and Peter Uwer
The Matrix Element Method at next-to-leading order QCD for hadronic collisions: Single top-quark production at the LHC as an example application
references and clarifications added, typos corrected, matches published version
JHEP05(2018)141
10.1007/JHEP05(2018)141
HU-EP-17/28
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In a recent work the authors have presented a general algorithm to extend the Matrix Element Method (MEM) to the hadronic production of coloured partons taking into account next-to-leading-order (NLO) corrections in quantum chromodynamics (QCD). In this article, the general algorithm is applied to the production of s...
[ { "created": "Tue, 12 Dec 2017 21:21:36 GMT", "version": "v1" }, { "created": "Thu, 24 May 2018 09:55:17 GMT", "version": "v2" } ]
2018-05-28
[ [ "Martini", "Till", "" ], [ "Uwer", "Peter", "" ] ]
In a recent work the authors have presented a general algorithm to extend the Matrix Element Method (MEM) to the hadronic production of coloured partons taking into account next-to-leading-order (NLO) corrections in quantum chromodynamics (QCD). In this article, the general algorithm is applied to the production of sin...
1111.0805
Bartolome Alles
B. Alles
Relativity accommodates superluminal mean velocities
5 pages; Latex source, 2 eps figures (expanded discussion, a few typos corrected, some refs. added)
Phys. Rev. D 85, 047501 (2012)
10.1103/PhysRevD.85.047501
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Contrary to a widespread belief, measures of velocity can yield a value larger than $c$, the instantaneous light speed in vacuum, without contradicting Einstein's relativity. Nevertheless, the effect turns out to be too small to explain the recently claimed superluminal velocity by the OPERA collaboration. Several ot...
[ { "created": "Thu, 3 Nov 2011 11:54:47 GMT", "version": "v1" }, { "created": "Thu, 23 Feb 2012 10:31:04 GMT", "version": "v2" } ]
2012-02-24
[ [ "Alles", "B.", "" ] ]
Contrary to a widespread belief, measures of velocity can yield a value larger than $c$, the instantaneous light speed in vacuum, without contradicting Einstein's relativity. Nevertheless, the effect turns out to be too small to explain the recently claimed superluminal velocity by the OPERA collaboration. Several othe...
hep-ph/9709450
Howard Haber
Howard E. Haber (Santa Cruz Institute for Particle Physics)
The Status of the Minimal Supersymmetric Standard Model and Beyond
17 pages, LaTeX, with espcrc2.sty style file, to appear in the Proceedings of the 5th International Conference on Supersymmetries in Physics (SUSY 97)
Nucl.Phys.Proc.Suppl.62:469-484,1998
10.1016/S0920-5632(97)00688-9
SCIPP 97/27
hep-ph
null
The minimal supersymmetric extension of the Standard Model (MSSM) is reviewed. In the most general framework with minimal field content and R-parity conservation, the MSSM is a 124-parameter model (henceforth called MSSM-124). An acceptable phenomenology occurs only at exceptional points (and small perturbations arou...
[ { "created": "Thu, 25 Sep 1997 00:45:51 GMT", "version": "v1" } ]
2008-11-26
[ [ "Haber", "Howard E.", "", "Santa Cruz Institute for Particle Physics" ] ]
The minimal supersymmetric extension of the Standard Model (MSSM) is reviewed. In the most general framework with minimal field content and R-parity conservation, the MSSM is a 124-parameter model (henceforth called MSSM-124). An acceptable phenomenology occurs only at exceptional points (and small perturbations around...
2012.13856
Sourendu Gupta
Saumen Datta, Sourendu Gupta, Rishi Sharma
Fun with colours: the standard model with two colour QCD has radically different long distance physics
Submitted to Indian Journal of Physics memorial issue for Pushan Majumdar
null
null
null
hep-ph astro-ph.HE hep-lat hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In our world the standard model of particle physics contains within it the fairly intractable theory called QCD. A toy version with two colours is often studied as a model confining and chiral symmetry breaking field theory. Here we investigate the cascade of changes at various distance scales if we make this change ...
[ { "created": "Sun, 27 Dec 2020 02:46:30 GMT", "version": "v1" }, { "created": "Tue, 20 Apr 2021 10:36:20 GMT", "version": "v2" } ]
2021-04-21
[ [ "Datta", "Saumen", "" ], [ "Gupta", "Sourendu", "" ], [ "Sharma", "Rishi", "" ] ]
In our world the standard model of particle physics contains within it the fairly intractable theory called QCD. A toy version with two colours is often studied as a model confining and chiral symmetry breaking field theory. Here we investigate the cascade of changes at various distance scales if we make this change wi...
1807.01481
Ujjal Kumar Dey
Cheng-Wei Chiang, Ujjal Kumar Dey, Tapoja Jha
$t\to cg$ and $t\to cZ$ in Universal Extra Dimensional Models
27 pages, 9 figures; minor changes in text; matches published version
Eur. Phys. J. Plus (2019) 134: 210
10.1140/epjp/i2019-12607-1
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work we perform a complete one-loop calculation of the flavor-changing top quark decays $t\to cg$ and $t\to cZ$ in the universal extra dimensional models. We find that the branching ratios of these decays in the minimal scenario remain unaltered from the Standard Model expectations for currently allowed value...
[ { "created": "Wed, 4 Jul 2018 08:38:59 GMT", "version": "v1" }, { "created": "Thu, 16 May 2019 08:00:26 GMT", "version": "v2" } ]
2019-05-17
[ [ "Chiang", "Cheng-Wei", "" ], [ "Dey", "Ujjal Kumar", "" ], [ "Jha", "Tapoja", "" ] ]
In this work we perform a complete one-loop calculation of the flavor-changing top quark decays $t\to cg$ and $t\to cZ$ in the universal extra dimensional models. We find that the branching ratios of these decays in the minimal scenario remain unaltered from the Standard Model expectations for currently allowed values ...
0907.0153
Daniele Binosi
A. C. Aguilar, D. Binosi and J. Papavassiliou
Indirect determination of the Kugo-Ojima function from lattice data
25 pages, 10 figures; v2: typos corrected, expanded version that matches the published article
JHEP 0911:066,2009
10.1088/1126-6708/2009/11/066
ECT*-09-04
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the structure and non-perturbative properties of a special Green's function, u(q), whose infrared behavior has traditionally served as the standard criterion for the realization of the Kugo-Ojima confinement mechanism. It turns out that, in the Landau gauge, u(q) can be determined from a dynamical equation, ...
[ { "created": "Wed, 1 Jul 2009 14:35:38 GMT", "version": "v1" }, { "created": "Tue, 19 Jul 2011 10:45:57 GMT", "version": "v2" } ]
2011-07-20
[ [ "Aguilar", "A. C.", "" ], [ "Binosi", "D.", "" ], [ "Papavassiliou", "J.", "" ] ]
We study the structure and non-perturbative properties of a special Green's function, u(q), whose infrared behavior has traditionally served as the standard criterion for the realization of the Kugo-Ojima confinement mechanism. It turns out that, in the Landau gauge, u(q) can be determined from a dynamical equation, wh...
0811.0847
Nicole F. Bell
Nicole F. Bell
Probing New Physics with Astrophysical Neutrinos
6 pages, 2 figures. Talk given at Neutrino 2008, Christchurch, New Zealand, May 2008
J.Phys.Conf.Ser.136:022043,2008
10.1088/1742-6596/136/2/022043
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We review the prospects for probing new physics with neutrino astrophysics. High energy neutrinos provide an important means of accessing physics beyond the electroweak scale. Neutrinos have a number of advantages over conventional astronomy and, in particular, carry information encoded in their flavor degree of free...
[ { "created": "Thu, 6 Nov 2008 00:36:04 GMT", "version": "v1" } ]
2008-12-18
[ [ "Bell", "Nicole F.", "" ] ]
We review the prospects for probing new physics with neutrino astrophysics. High energy neutrinos provide an important means of accessing physics beyond the electroweak scale. Neutrinos have a number of advantages over conventional astronomy and, in particular, carry information encoded in their flavor degree of freedo...
1510.02110
Felix Kahlhoefer
Felix Kahlhoefer (DESY), Kai Schmidt-Hoberg (DESY), Thomas Schwetz (KIT), Stefan Vogl (Stockholm & KIT)
Implications of unitarity and gauge invariance for simplified dark matter models
25 pages + appendices, 10 figures; v2: monojet bounds added, relic density calculation corrected, discussion of small couplings included, matches published version
JHEP 1602 (2016) 016
10.1007/JHEP02(2016)016
DESY 15-182
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that simplified models used to describe the interactions of dark matter with Standard Model particles do not in general respect gauge invariance and that perturbative unitarity may be violated in large regions of the parameter space. The modifications necessary to cure these inconsistencies may imply a much r...
[ { "created": "Wed, 7 Oct 2015 20:18:20 GMT", "version": "v1" }, { "created": "Mon, 25 Jan 2016 10:55:37 GMT", "version": "v2" } ]
2016-02-10
[ [ "Kahlhoefer", "Felix", "", "DESY" ], [ "Schmidt-Hoberg", "Kai", "", "DESY" ], [ "Schwetz", "Thomas", "", "KIT" ], [ "Vogl", "Stefan", "", "Stockholm & KIT" ] ]
We show that simplified models used to describe the interactions of dark matter with Standard Model particles do not in general respect gauge invariance and that perturbative unitarity may be violated in large regions of the parameter space. The modifications necessary to cure these inconsistencies may imply a much ric...
hep-ph/0312145
Ulrich Nierste
Sebastian Jager and Ulrich Nierste
B_s-B_s-bar mixing in an SO(10) SUSY GUT model
4 pages, 2 figures
Eur.Phys.J.C33:s256-s258,2004
10.1140/epjcd/s2004-03-1581-y
FERMILAB-Conf-03/394-T
hep-ph
null
We perform a renormalisation group analysis of the SO(10) model proposed by Chang, Masiero and Murayama, which links the large atmospheric neutrino mixing angle to loop-induced transitions between right-handed b and s quarks. We compute the impact on B_s-B_s-bar mixing and find that the mass difference in the B_s sys...
[ { "created": "Wed, 10 Dec 2003 21:19:42 GMT", "version": "v1" } ]
2011-09-13
[ [ "Jager", "Sebastian", "" ], [ "Nierste", "Ulrich", "" ] ]
We perform a renormalisation group analysis of the SO(10) model proposed by Chang, Masiero and Murayama, which links the large atmospheric neutrino mixing angle to loop-induced transitions between right-handed b and s quarks. We compute the impact on B_s-B_s-bar mixing and find that the mass difference in the B_s syste...
1401.4229
Raquel Molina Ms.
R. Molina, A. Hosaka and H. Nagahiro
Decays of double charmed meson molecules
5 pages, 1 table, 1 figure
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The interaction between pseudoscalar and/or vector mesons can be studied using hidden gauge Lagrangians. In this framework, the interaction between charmed mesons has been studied. Furthermore, doubly charmed states are also predicted. These new states are near the $D^*D^*$ and $D^*D^*_s$ thresholds, and have spin-pa...
[ { "created": "Fri, 17 Jan 2014 02:52:07 GMT", "version": "v1" } ]
2014-01-20
[ [ "Molina", "R.", "" ], [ "Hosaka", "A.", "" ], [ "Nagahiro", "H.", "" ] ]
The interaction between pseudoscalar and/or vector mesons can be studied using hidden gauge Lagrangians. In this framework, the interaction between charmed mesons has been studied. Furthermore, doubly charmed states are also predicted. These new states are near the $D^*D^*$ and $D^*D^*_s$ thresholds, and have spin-pari...
1805.01441
Alexandre Kisselev
S.C. \.Inan, A.V. Kisselev
Search for the RS model with a small curvature through photon-induced process at the LHC
22 pages, 8 figures; 11 equations and 8 references are added
Eur. Phys. J. C (2018) 78: 729
10.1140/epjc/s10052-018-6210-5
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, potential of the LHC to explore the phenomenology of the Randall-Sundrum-like scenario with the small curvature for the process $pp \to p \gamma \gamma p \to p \mu^- \mu^+p $ through the subprocess $\gamma \gamma \to \mu^- \mu^+$ is examined for two forward detector acceptances, $0.0015 < \xi< 0.5$ and...
[ { "created": "Thu, 3 May 2018 17:34:07 GMT", "version": "v1" }, { "created": "Thu, 13 Sep 2018 09:24:48 GMT", "version": "v2" } ]
2018-09-26
[ [ "İnan", "S. C.", "" ], [ "Kisselev", "A. V.", "" ] ]
In this paper, potential of the LHC to explore the phenomenology of the Randall-Sundrum-like scenario with the small curvature for the process $pp \to p \gamma \gamma p \to p \mu^- \mu^+p $ through the subprocess $\gamma \gamma \to \mu^- \mu^+$ is examined for two forward detector acceptances, $0.0015 < \xi< 0.5$ and $...
hep-ph/9405313
Uri Sarid
Riccardo Rattazzi, Uri Sarid and Lawrence J. Hall
Yukawa Unification: The Good, The Bad and The Ugly
(talk Uri Sarid at the Second IFT Workshop on Yukawa Couplings and the Origins of Mass, 11-13 February 1994, Gainesville, Florida), 18 pages plus 3 uuencoded figures (included at bottom), REVISED: small typos have been fixed and some clarifications and a few forgotten acknowledgments and references have been ad...
null
null
null
hep-ph
null
We analyze some consequences of grand unification of the third-generation Yukawa couplings, in the context of the minimal supersymmetric standard model. We address two issues: the prediction of the top quark mass, and the generation of the top-bottom mass hierarchy through a hierarchy of Higgs vacuum expectation valu...
[ { "created": "Wed, 18 May 1994 07:09:32 GMT", "version": "v1" }, { "created": "Fri, 20 May 1994 07:37:36 GMT", "version": "v2" } ]
2009-09-25
[ [ "Rattazzi", "Riccardo", "" ], [ "Sarid", "Uri", "" ], [ "Hall", "Lawrence J.", "" ] ]
We analyze some consequences of grand unification of the third-generation Yukawa couplings, in the context of the minimal supersymmetric standard model. We address two issues: the prediction of the top quark mass, and the generation of the top-bottom mass hierarchy through a hierarchy of Higgs vacuum expectation values...
2106.06990
Margarete Muhlleitner
Thi Nhung Dao, Martin Gabelmann, Margarete M\"uhlleitner, Heidi Rzehak
Two-Loop ${\cal O}((\alpha_t+\alpha_\lambda+\alpha_\kappa)^2)$ Corrections to the Higgs Boson Masses in the CP-Violating NMSSM
null
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present our computation of the ${\cal O}((\alpha_t+\alpha_\lambda+\alpha_\kappa)^2)$ two-loop corrections to the Higgs boson masses of the CP-violating Next-to-Minimal Supersymmetric Standard Model (NMSSM) using the Feynman-diagrammatic approach in the gaugeless limit at vanishing external momentum. We choose a mi...
[ { "created": "Sun, 13 Jun 2021 13:33:57 GMT", "version": "v1" } ]
2021-06-15
[ [ "Dao", "Thi Nhung", "" ], [ "Gabelmann", "Martin", "" ], [ "Mühlleitner", "Margarete", "" ], [ "Rzehak", "Heidi", "" ] ]
We present our computation of the ${\cal O}((\alpha_t+\alpha_\lambda+\alpha_\kappa)^2)$ two-loop corrections to the Higgs boson masses of the CP-violating Next-to-Minimal Supersymmetric Standard Model (NMSSM) using the Feynman-diagrammatic approach in the gaugeless limit at vanishing external momentum. We choose a mixe...
1803.03650
Yuber F. Perez-Gonzalez
M. C. Gonzalez-Garcia, Michele Maltoni, Yuber F. Perez-Gonzalez and Renata Zukanovich Funchal
Neutrino Discovery Limit of Dark Matter Direct Detection Experiments in the Presence of Non-Standard Interactions
21 pages, 4 figures. Matches version published in the JHEP. Corrected exposure and results for CRESST phase III
JHEP07(2018)019
10.1007/JHEP07(2018)019
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The detection of coherent neutrino-nucleus scattering by the COHERENT collaboration has set on quantitative grounds the existence of an irreducible neutrino background in direct detection searches of Weakly Interacting Massive Dark Matter candidates. This background leads to an ultimate discovery limit for these expe...
[ { "created": "Fri, 9 Mar 2018 19:00:02 GMT", "version": "v1" }, { "created": "Thu, 5 Jul 2018 12:00:38 GMT", "version": "v2" } ]
2018-07-06
[ [ "Gonzalez-Garcia", "M. C.", "" ], [ "Maltoni", "Michele", "" ], [ "Perez-Gonzalez", "Yuber F.", "" ], [ "Funchal", "Renata Zukanovich", "" ] ]
The detection of coherent neutrino-nucleus scattering by the COHERENT collaboration has set on quantitative grounds the existence of an irreducible neutrino background in direct detection searches of Weakly Interacting Massive Dark Matter candidates. This background leads to an ultimate discovery limit for these experi...
hep-ph/0009226
Bruce Hoeneisen
B. Hoeneisen and C. Marin
Like-sign dimuon charge asymmetry in the decay of B B-bar pairs
9 pages, 3 Postscript figures
null
null
Universidad San Francisco de Quito preprint USFQ-3-2000
hep-ph
null
We discuss the CP-violating dimuon charge asymmetry of events p p-bar ---> B B-bar X ---> mu mu X in the Standard Model. Our conclusion is that the asymmetry is larger than previously expected and may reach a few percent for the (B_d^0, B-bar_d^0) system. The analysis is also extended to the Two Higgs Doublet Model (...
[ { "created": "Tue, 19 Sep 2000 22:09:19 GMT", "version": "v1" } ]
2007-05-23
[ [ "Hoeneisen", "B.", "" ], [ "Marin", "C.", "" ] ]
We discuss the CP-violating dimuon charge asymmetry of events p p-bar ---> B B-bar X ---> mu mu X in the Standard Model. Our conclusion is that the asymmetry is larger than previously expected and may reach a few percent for the (B_d^0, B-bar_d^0) system. The analysis is also extended to the Two Higgs Doublet Model (Mo...
1202.2470
Vesna Borka Jovanovi\'c
V. Borka Jovanovi\'c, D. Borka
Mass formulas for single-charm tetraquarks with Fermi-Breit hyperfine interaction
13 pages, 6 tables, 2 figures. Accepted for publication in Rom. J. Phys
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we present the main results of our investigation of the $cq \bar{q} \bar{q}$ single-charm scalar tetraquarks and their SU(3)$_\mathrm{F}$ representations: $\bar{15}_S$, $\bar{3}_S$, $6_A$ and $\bar{3}_A$. We use the Fermi-Breit interaction Hamiltonian with SU(3) flavor symmetry breaking to determine the...
[ { "created": "Sat, 11 Feb 2012 20:31:42 GMT", "version": "v1" } ]
2012-02-14
[ [ "Jovanović", "V. Borka", "" ], [ "Borka", "D.", "" ] ]
In this paper we present the main results of our investigation of the $cq \bar{q} \bar{q}$ single-charm scalar tetraquarks and their SU(3)$_\mathrm{F}$ representations: $\bar{15}_S$, $\bar{3}_S$, $6_A$ and $\bar{3}_A$. We use the Fermi-Breit interaction Hamiltonian with SU(3) flavor symmetry breaking to determine the m...
hep-ph/0106213
Liangsb
Chongxing Yue, Qingjun Xu, Guoli Liu
Lepton-Flavor Violating Processes $l_{i}\to l_{j}\gamma$ in Topcolor Assisted Technicolor Models
some mistakes corrected and several references added
Commun.Theor.Phys.38:461-464,2002
10.1088/0253-6102/38/4/461
null
hep-ph
null
We consider the lepton-flavor violating(LFV) processes $l_{i}\to l_{j}\gamma$ in the framework of topcolor assisted technicolor(TC2) models. We find that the new gauge boson $Z^{\prime}$ predicted by TC2 models can give significantly contributions to these processes via the flavor changing couplings. The present expe...
[ { "created": "Tue, 19 Jun 2001 09:25:52 GMT", "version": "v1" }, { "created": "Sun, 26 Aug 2001 22:59:27 GMT", "version": "v2" } ]
2018-01-17
[ [ "Yue", "Chongxing", "" ], [ "Xu", "Qingjun", "" ], [ "Liu", "Guoli", "" ] ]
We consider the lepton-flavor violating(LFV) processes $l_{i}\to l_{j}\gamma$ in the framework of topcolor assisted technicolor(TC2) models. We find that the new gauge boson $Z^{\prime}$ predicted by TC2 models can give significantly contributions to these processes via the flavor changing couplings. The present experi...
hep-ph/0004184
Arnd Brandenburg
W. Bernreuther, A. Brandenburg, Z.G. Si
Next-to-leading order QCD corrections to top quark spin correlations at hadron colliders: the reactions $q{\bar q}\to t{\bar t}(g)$
14 pages, 5 figures
Phys.Lett. B483 (2000) 99-104
10.1016/S0370-2693(00)00583-9
null
hep-ph
null
Future hadron collider experiments are expected to record large to huge samples of $t\bar t$ events. The analysis of these data with respect to $t\bar t$ spin-spin correlations requires precise predictions of the production of these quark pairs in a general spin configuration. Therefore we have computed, at next-to-l...
[ { "created": "Wed, 19 Apr 2000 16:01:29 GMT", "version": "v1" } ]
2009-10-31
[ [ "Bernreuther", "W.", "" ], [ "Brandenburg", "A.", "" ], [ "Si", "Z. G.", "" ] ]
Future hadron collider experiments are expected to record large to huge samples of $t\bar t$ events. The analysis of these data with respect to $t\bar t$ spin-spin correlations requires precise predictions of the production of these quark pairs in a general spin configuration. Therefore we have computed, at next-to-lea...
1410.5478
Ben King
B. King
Double Compton scattering in a constant crossed field
8 pages, 6 figures
Phys. Rev. A 91, 033415 (2015)
10.1103/PhysRevA.91.033415
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Two-photon emission of an electron in an electromagnetic plane wave of vanishing frequency is calculated. The unpolarised probability is split into a two-step process, which is shown to be exactly equal to an integration over polarised subprocesses, and a one-step process, which is found to be dominant over the forma...
[ { "created": "Mon, 20 Oct 2014 21:40:43 GMT", "version": "v1" } ]
2015-09-15
[ [ "King", "B.", "" ] ]
Two-photon emission of an electron in an electromagnetic plane wave of vanishing frequency is calculated. The unpolarised probability is split into a two-step process, which is shown to be exactly equal to an integration over polarised subprocesses, and a one-step process, which is found to be dominant over the formati...
1606.04873
Yao De-Liang
Jambul Gegelia, Ulf-G. Mei{\ss}ner, De-Liang Yao
The width of the Roper resonance in baryon chiral perturbation theory
11 pages, 3 figures
null
10.1016/j.physletb.2016.07.068
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the width of the Roper resonance at next-to-leading order in a systematic expansion of baryon chiral perturbation theory with pions, nucleons, and the delta and Roper resonances as dynamical degrees of freedom. Three unknown low-energy constants contribute up to the given order. One of them can be fixed ...
[ { "created": "Wed, 15 Jun 2016 17:31:05 GMT", "version": "v1" } ]
2016-08-24
[ [ "Gegelia", "Jambul", "" ], [ "Meißner", "Ulf-G.", "" ], [ "Yao", "De-Liang", "" ] ]
We calculate the width of the Roper resonance at next-to-leading order in a systematic expansion of baryon chiral perturbation theory with pions, nucleons, and the delta and Roper resonances as dynamical degrees of freedom. Three unknown low-energy constants contribute up to the given order. One of them can be fixed by...
1207.1462
Christoph Berger
Ch. Berger and L. M. Sehgal
Flow of entropy in the evolution of the B^0 anti B^0 system: Upper bound on CP violation from unidirectionality
8 pages, 4 figures. Typos corrected, comment on entropy added. To be published in Physical Review D
Phys.Rev. D86 057901 2012
10.1103/PhysRevD.86.057901
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We have previously studied the time-dependence of a B anti B meson mixture in terms of its density matrix. The requirement that the absolute value of the Stokes vector zeta(t) should evolve monotonically from its initial value zeta(0)=0 to its final value zeta(infinity)=1 was shown to lead to an upper bound on the CP...
[ { "created": "Thu, 5 Jul 2012 21:00:54 GMT", "version": "v1" }, { "created": "Sat, 18 Aug 2012 08:41:15 GMT", "version": "v2" } ]
2015-08-06
[ [ "Berger", "Ch.", "" ], [ "Sehgal", "L. M.", "" ] ]
We have previously studied the time-dependence of a B anti B meson mixture in terms of its density matrix. The requirement that the absolute value of the Stokes vector zeta(t) should evolve monotonically from its initial value zeta(0)=0 to its final value zeta(infinity)=1 was shown to lead to an upper bound on the CP v...
1812.08501
Clara \'Alvarez Luna
C. \'Alvarez-Luna and J. A. R. Cembranos
Dark photon searches with atomic transitions
16 pages, 3 figures
J. High Energ. Phys. (2019) 2019: 110
10.1007/JHEP07(2019)110
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Dark matter could be made up of dark photons, massive but very light particles whose interactions with matter resemble those of usual photons but suppressed by a small mixing parameter. We analyze the main approaches to dark photon interactions and how they can be applied to direct detection experiments which test di...
[ { "created": "Thu, 20 Dec 2018 11:49:05 GMT", "version": "v1" }, { "created": "Thu, 12 Sep 2019 14:13:25 GMT", "version": "v2" } ]
2019-09-13
[ [ "Álvarez-Luna", "C.", "" ], [ "Cembranos", "J. A. R.", "" ] ]
Dark matter could be made up of dark photons, massive but very light particles whose interactions with matter resemble those of usual photons but suppressed by a small mixing parameter. We analyze the main approaches to dark photon interactions and how they can be applied to direct detection experiments which test diff...
1404.5038
Huong Do Thi
L. T. Hue, D. T. Huong, H. N. Long, H. T. Hung, N. H. Thao
Signal of doubly charged Higgs at $e^+e^-$ colliders
48 pages, 22 figures, more considerations included, accepted for publication in PTEP
Prog. Theor. Exp. Phys. (2015) 113B05
10.1093/ptep/ptv155
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Masses and signals of the production of Doubly charged Higgses(DCH) in the framework of the supersymmetric reduced minimal 3-3-1 model(SUSYRM331) are investigated. In the DCH sector, weprove that there always exists a region of the parameter space where the mass of the lightest DCH is in order of $\mathcal{O}(100)$ G...
[ { "created": "Sun, 20 Apr 2014 13:32:46 GMT", "version": "v1" }, { "created": "Fri, 2 Oct 2015 16:20:39 GMT", "version": "v2" } ]
2015-12-03
[ [ "Hue", "L. T.", "" ], [ "Huong", "D. T.", "" ], [ "Long", "H. N.", "" ], [ "Hung", "H. T.", "" ], [ "Thao", "N. H.", "" ] ]
Masses and signals of the production of Doubly charged Higgses(DCH) in the framework of the supersymmetric reduced minimal 3-3-1 model(SUSYRM331) are investigated. In the DCH sector, weprove that there always exists a region of the parameter space where the mass of the lightest DCH is in order of $\mathcal{O}(100)$ GeV...
1605.01209
Alfredo Urbano
Gian F. Giudice, Matthew McCullough, Alfredo Urbano
Hunting for Dark Particles with Gravitational Waves
44 pages, 14 figures. Revised version to appear in JCAP
null
10.1088/1475-7516/2016/10/001
null
hep-ph astro-ph.HE gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The LIGO observation of gravitational waves from a binary black hole merger has begun a new era in fundamental physics. If new dark sector particles, be they bosons or fermions, can coalesce into exotic compact objects (ECOs) of astronomical size, then the first evidence for such objects, and their underlying microph...
[ { "created": "Wed, 4 May 2016 10:22:37 GMT", "version": "v1" }, { "created": "Mon, 3 Oct 2016 08:34:23 GMT", "version": "v2" } ]
2016-10-12
[ [ "Giudice", "Gian F.", "" ], [ "McCullough", "Matthew", "" ], [ "Urbano", "Alfredo", "" ] ]
The LIGO observation of gravitational waves from a binary black hole merger has begun a new era in fundamental physics. If new dark sector particles, be they bosons or fermions, can coalesce into exotic compact objects (ECOs) of astronomical size, then the first evidence for such objects, and their underlying microphys...
1408.4552
Dao-Neng Gao
Dao-Neng Gao
Analysis of $J/\psi(\eta_c)\to \gamma ~+$ invisible decays in the standard model
7 pages, 4 figures. An appendix added, published version
Phys. Rev. D 90, 077501 (2014)
10.1103/PhysRevD.90.077501
USTC-ICTS-14-14
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by the experimental study of $J/\psi\to\gamma ~+$ invisible decay by the CLEO Collaboration, we analyze the process $J/\psi\to \gamma \nu\bar{\nu}$, as the standard model background for this invisible decay, at the lowest order. Our investigation shows that Br($J/\psi\to \gamma \nu\bar{\nu}$) is far below t...
[ { "created": "Wed, 20 Aug 2014 07:33:59 GMT", "version": "v1" }, { "created": "Tue, 7 Oct 2014 06:12:03 GMT", "version": "v2" } ]
2014-10-08
[ [ "Gao", "Dao-Neng", "" ] ]
Motivated by the experimental study of $J/\psi\to\gamma ~+$ invisible decay by the CLEO Collaboration, we analyze the process $J/\psi\to \gamma \nu\bar{\nu}$, as the standard model background for this invisible decay, at the lowest order. Our investigation shows that Br($J/\psi\to \gamma \nu\bar{\nu}$) is far below the...
hep-ph/9410257
Phil Ratcliffe
Giuliano Preparata and Philip G. Ratcliffe
The Pomeron in QCD
8 pages (LaTeX, plus 4 postscript figures in a separate file), report number MITH 94/13 *** Replaced figures file with uuencoded, compressed, tarred version ***
Phys.Lett. B345 (1995) 272-276
10.1016/0370-2693(94)01621-I
null
hep-ph
null
In the framework of Anisotropic Chromodynamics, a non-perturbative realization of QCD, we develop the Low-Nussinov picture of the Pomeron. In this approach all the usual problems of low pT perturbative calculations (infrared divergence) are naturally absent. Thus, we are able to perform an ab initio calculation of th...
[ { "created": "Tue, 11 Oct 1994 10:47:44 GMT", "version": "v1" }, { "created": "Wed, 12 Oct 1994 10:53:22 GMT", "version": "v2" }, { "created": "Thu, 13 Oct 1994 16:32:36 GMT", "version": "v3" } ]
2009-10-28
[ [ "Preparata", "Giuliano", "" ], [ "Ratcliffe", "Philip G.", "" ] ]
In the framework of Anisotropic Chromodynamics, a non-perturbative realization of QCD, we develop the Low-Nussinov picture of the Pomeron. In this approach all the usual problems of low pT perturbative calculations (infrared divergence) are naturally absent. Thus, we are able to perform an ab initio calculation of the ...
0802.3193
Brigitte Hiller
Brigitte Hiller, Alexander A. Osipov, Alex H. Blin and Joao da Providencia
Effects of Quark Interactions on Dynamical Chiral Symmetry Breaking by a Magnetic Field
This is a contribution to the Proc. of the Seventh International Conference ''Symmetry in Nonlinear Mathematical Physics'' (June 24-30, 2007, Kyiv, Ukraine), published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
SIGMA 4:024,2008
10.3842/SIGMA.2008.024
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is shown how the strong interaction dynamics of a multi-quark Lagrangian affects the catalysis of dynamical symmetry breaking by a constant magnetic field in (3+1) dimensions. Attention is drawn to the local minima structure of the theory.
[ { "created": "Thu, 21 Feb 2008 19:14:40 GMT", "version": "v1" }, { "created": "Fri, 22 Feb 2008 19:48:15 GMT", "version": "v2" } ]
2008-12-19
[ [ "Hiller", "Brigitte", "" ], [ "Osipov", "Alexander A.", "" ], [ "Blin", "Alex H.", "" ], [ "da Providencia", "Joao", "" ] ]
It is shown how the strong interaction dynamics of a multi-quark Lagrangian affects the catalysis of dynamical symmetry breaking by a constant magnetic field in (3+1) dimensions. Attention is drawn to the local minima structure of the theory.
1512.05011
Todd Garon
Vernon Barger, Lisa L. Everett, and Todd S. Garon
Electroweak Naturalness and Deflected Mirage Mediation
17 Pages, 7 Figures
Phys. Rev. D 93, 075024 (2016)
10.1103/PhysRevD.93.075024
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the question of electroweak naturalness within the deflected mirage mediation (DMM) framework for supersymmetry breaking in the minimal supersymmetric standard model (MSSM). The class of DMM models considered are nine-parameter theories that fall within the general classification of the 19-parameter ph...
[ { "created": "Tue, 15 Dec 2015 23:30:04 GMT", "version": "v1" } ]
2016-04-27
[ [ "Barger", "Vernon", "" ], [ "Everett", "Lisa L.", "" ], [ "Garon", "Todd S.", "" ] ]
We investigate the question of electroweak naturalness within the deflected mirage mediation (DMM) framework for supersymmetry breaking in the minimal supersymmetric standard model (MSSM). The class of DMM models considered are nine-parameter theories that fall within the general classification of the 19-parameter phen...
0705.2610
Rudy Gilmore
Rudy C. Gilmore
Mass Limits on Neutralino Dark Matter
11 pages, 3 figures
Phys.Rev.D76:043520,2007
10.1103/PhysRevD.76.043520
null
hep-ph
null
We set an upper limit on the mass of a supersymmetric neutralino dark matter particle using the MicrOMEGAS and DarkSUSY software packages and the most recent constraints on relic density from combined WMAP and SDSS data. We explore several different possible scenarios within the MSSM, including coannihilation with ch...
[ { "created": "Thu, 17 May 2007 22:14:04 GMT", "version": "v1" }, { "created": "Thu, 16 Aug 2007 00:55:01 GMT", "version": "v2" } ]
2008-11-26
[ [ "Gilmore", "Rudy C.", "" ] ]
We set an upper limit on the mass of a supersymmetric neutralino dark matter particle using the MicrOMEGAS and DarkSUSY software packages and the most recent constraints on relic density from combined WMAP and SDSS data. We explore several different possible scenarios within the MSSM, including coannihilation with char...
1503.05078
Thomas Steeger
Lisa Edelhaeuser, Alexander Knochel and Thomas Steeger
Applying EFT to Higgs Pair Production in Universal Extra Dimensions
13 pages, 8 figures
null
10.1007/JHEP11(2015)062
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate single Higgs and Higgs pair production at the LHC in models of Universal Extra Dimensions. After calculating the relevant cross sections, we use the UED model as a testing ground for the Effective Field Theory approach to physics beyond the Standard Model. We show how the UED contributions to Higgs pro...
[ { "created": "Tue, 17 Mar 2015 14:46:30 GMT", "version": "v1" } ]
2015-11-23
[ [ "Edelhaeuser", "Lisa", "" ], [ "Knochel", "Alexander", "" ], [ "Steeger", "Thomas", "" ] ]
We investigate single Higgs and Higgs pair production at the LHC in models of Universal Extra Dimensions. After calculating the relevant cross sections, we use the UED model as a testing ground for the Effective Field Theory approach to physics beyond the Standard Model. We show how the UED contributions to Higgs produ...
2208.13782
Andreas Bally
Andrei Angelescu, Andreas Bally, Florian Goertz, Sascha Weber
SU(6) Gauge-Higgs Grand Unification: Minimal Viable Models and Flavor
47 + 12 pages, 5 figures, 2 appendices
null
10.1007/JHEP04(2023)012
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Gauge-Higgs grand unification theories are models of gauge-Higgs unification that extend the electroweak group into a simple group that includes the color symmetry. The minimal option is a gauge-Higgs grand unification based on the SU(6) gauge group, mirroring SU(5) grand unification in 4D while providing a solution ...
[ { "created": "Mon, 29 Aug 2022 18:00:00 GMT", "version": "v1" } ]
2023-04-19
[ [ "Angelescu", "Andrei", "" ], [ "Bally", "Andreas", "" ], [ "Goertz", "Florian", "" ], [ "Weber", "Sascha", "" ] ]
Gauge-Higgs grand unification theories are models of gauge-Higgs unification that extend the electroweak group into a simple group that includes the color symmetry. The minimal option is a gauge-Higgs grand unification based on the SU(6) gauge group, mirroring SU(5) grand unification in 4D while providing a solution to...
hep-ph/9909241
Wolfgang Ochs
Wolfgang Ochs (MPI Physik, Munich)
Lightest glueball and scalar meson nonet in production and decay
3 pages, talk at EPS-HEP '99 Conference, July 15-21, 1999, Tampere, Finland
null
null
MPI-PhT/99-40
hep-ph
null
Recent results concerning the evidence and classification of the J^{PC}=0^{++} states, obtained with P. Minkowski, are presented: The isoscalars f_0(980) and f_0(1500) are classified as members of the 0^{++} nonet, while the broad state called f_0(400-1200) and the state f_0(1370) are considered as different componen...
[ { "created": "Fri, 3 Sep 1999 10:44:34 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ochs", "Wolfgang", "", "MPI Physik, Munich" ] ]
Recent results concerning the evidence and classification of the J^{PC}=0^{++} states, obtained with P. Minkowski, are presented: The isoscalars f_0(980) and f_0(1500) are classified as members of the 0^{++} nonet, while the broad state called f_0(400-1200) and the state f_0(1370) are considered as different components...
hep-ph/9906289
Werner Vogelsang
W. Vogelsang (ITP, SUNY at Stony Brook)
Polarized lepton nucleon scattering -- summary of the theory talks on spin physics at DIS 99
10 Pages, LaTeX, 6 figures as eps files
Nucl.Phys.Proc.Suppl.79:755-765,1999
10.1016/S0920-5632(99)00817-8
ITP-SB-99-26
hep-ph
null
We summarize the theory talks given in Working Group 4 `Polarized Lepton Nucleon Scattering' at the DIS 99 workshop. The significant progress made over the last year on many of the interesting topics in `spin physics' is documented.
[ { "created": "Tue, 8 Jun 1999 15:31:40 GMT", "version": "v1" } ]
2008-11-26
[ [ "Vogelsang", "W.", "", "ITP, SUNY at Stony Brook" ] ]
We summarize the theory talks given in Working Group 4 `Polarized Lepton Nucleon Scattering' at the DIS 99 workshop. The significant progress made over the last year on many of the interesting topics in `spin physics' is documented.
2309.02293
Manuel Donaire
M. Donaire
Acceleration of a polarized neutron by its weak nuclear self-interaction
4-page article + 6-page appendix + 1 figure
null
null
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
It is proven that the rotation of the spin of a polarized neutron is accompanied by a net nuclear force upon it. This force arises from the weak nuclear self-interaction of its constituent quarks, whose chiral nature induces the transfer of a net momentum to the fields of Z and W-bosons. This effect is linear in Ferm...
[ { "created": "Tue, 5 Sep 2023 14:56:38 GMT", "version": "v1" } ]
2023-09-06
[ [ "Donaire", "M.", "" ] ]
It is proven that the rotation of the spin of a polarized neutron is accompanied by a net nuclear force upon it. This force arises from the weak nuclear self-interaction of its constituent quarks, whose chiral nature induces the transfer of a net momentum to the fields of Z and W-bosons. This effect is linear in Fermi'...