id large_stringlengths 9 16 | title large_stringlengths 1 382 | abstract large_stringlengths 3 6.09k | publish_date date32 | update_date date32 | categories large listlengths 1 13 | authors large_stringlengths 3 62.8k |
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hep-ph/9411244 | Quantum Field Theory of Bose-Einstein Correlations | A Quantum Field Theory formulation of Bose-Einstein Correlations is given. It
contains as a special case the classical current approach. It is shown that the
particle-antiparticle correlations are a general feature of Bose-Einstein
Correlations and not an artifact of a certain approximation. Relations are
provided thro... | 1994-11-08 | 2009-10-28 | [
"hep-ph"
] | Leonid V. Razumov and R.M. Weiner |
hep-ph/9411241 | Infrared Fixed Points and Fixed Lines in the Top-Bottom-Tau Sector in
Supersymmetric Grand Unification | The two-loop ``top-down'' renormalization group flow for the top, bottom and
tau Yukawa couplings is explored in the framework of supersymmetric grand
unification; reproduction of the physical bottom and tau masses is required.
Instead of following the recent trend of implementing exact Yukawa coupling
unification i) a... | 1994-11-08 | 2011-01-27 | [
"hep-ph"
] | Barbara Schrempp |
hep-ph/9411245 | Photon Structure Functions: Target Photon Mass Effects and QCD
Corrections | We present a systematic analysis of the processes $e^+ ~e^- \rightarrow e^+
~e^- X$ to study the polarised and unpolarised photon structure functions. The
effect of target photon mass, which manifests itself as new singly polarised
structure functions is studied. The physical interpretation of these structure
functions... | 1994-11-08 | 2015-06-25 | [
"hep-ph"
] | Prakash Mathews and V. Ravindran |
hep-ph/9411247 | Grand Unification and the Standard Model | The current status of gauge unification is surveyed both in the standard
model and its minimal supersymmetric extension. Implications for proton decay,
Yukawa unification, and the Higgs mass are described. | 1994-11-08 | 2009-09-25 | [
"hep-ph"
] | Paul Langacker |
hep-ph/9411242 | Proton-ring and Electron-linac Collider (PRELC) as a (first)
TeV-rangeelectron-proton or photon-proton collider | The use of the existing proton storage rings combined with electron linear
accelerator as a ring-linac type electron-proton or photon-proton collider is
investigated. The total CM-energy of Proton-ring and Electron-linac Collider
(PRELC) is in the range of 1.0 TeV. The most important physical issues are
listed and the ... | 1994-11-08 | 2009-09-25 | [
"hep-ph"
] | Raimo Vuopionper\"a (SEFT, Univ. Helsinki) |
hep-ph/9411238 | Dyson-Schwinger equations and their application to nonperturbative field
theory | Two examples of recent progress in applications of the Dyson-Schwinger
equation (DSE) formalism are presented: (1) Strong coupling quantum
electrodynamics in 4 dimensions (QED$_4$) is an often studied model, which is
of interest both in its own right and as an abelian model of quantum
chromodynamics (QCD). We present r... | 1994-11-08 | 2007-05-23 | [
"hep-ph"
] | F.T. Hawes, K. Kusaka, and A.G. Williams |
hep-ph/9411249 | Natural R Parity Conservation with Horizontal Symmetries. a Four
Generation Model | In most supersymmetric models the stability of the proton is ensured by
invoking R-parity. A necessary ingredient to enforce R-parity is the
possibility of distinguishing the lepton superfields from the Higgs ones. This
is generally achieved either by assuming different charges under some matter
parity, or by assigning... | 1994-11-08 | 2016-08-24 | [
"hep-ph"
] | Zurab Berezhiani and Enrico Nardi |
hep-ph/9411239 | Radiative Symmetry Breaking in a Supersymmetric Model with an Extra
$U(1)$ | Radiative symmetry breaking is studied in a superstring-inspired
supersymmetric model which is extended with a low energy extra $U(1)$ symmetry.
In this model the $\mu$-problem is radiatively solved in an automatic way. The
right-handed neutrino can be heavy and the seesaw mechanism will produce the
small neutrino mass... | 1994-11-08 | 2011-05-05 | [
"hep-ph"
] | Daijiro Suematsu and Yoshio Yamagishi |
hep-ph/9411250 | Properties of an equilibrium hadron gas subjected to the adiabatic
longitudinal expansion | We consider an ideal gas of massive hadrons in thermal and chemical
equilibrium. The gas expands longitudinally in an adiabatic way. This evolution
for a baryonless gas reduces to a hydrodynamic expansion. Cooling process is
parametrized by the sound velocity. The sound velocity is temperature dependent
and is strongly... | 1994-11-08 | 2009-10-28 | [
"hep-ph"
] | Dariusz Prorok and Ludwik Turko |
hep-ph/9411248 | Light-Gluino Production at LEP | If gluinos are light, they will be produced in electron-positron annihilation
at LEP, not only by radiation in pairs off quarks and antiquarks, but also
without accompanying quark and antiquark jets. We here discuss the latter
process, pair production of gluinos, in a model with soft supersymmetry
breaking, allowing fo... | 1994-11-08 | 2008-02-03 | [
"hep-ph"
] | Bjarte Kileng and Per Osland |
hep-ph/9411233 | $\sin^2\theta_W(M_Z)$ ~in the MSSM and Unification of Couplings | We calculate ~$\sin^2\theta(M_Z)$ ~in the MSSM in terms of ~ $\alpha_{EM}$,
~$G_F$, ~$m_t$, ~$\tan\beta$ ~and SUSY mass parameters with the same accuracy
as the present calculations of ~$\sin^2\theta(M_Z)$ ~in the SM. We compare the
results with the standard leading logarithmic approximation used for SUSY
threshold cor... | 1994-11-07 | 2009-10-28 | [
"hep-ph"
] | P.H. Chankowski, Z. P{\l}uciennik and S. Pokorski |
hep-ph/9411232 | Chiral Perturbation Theory | An introduction to Chiral Perturbation Theory is given including a discussion
of power counting, the Wess-Zumino term, the values of the coupling constants
and the inclusion of the effects of other resonances. | 1994-11-07 | 2007-05-23 | [
"hep-ph"
] | J. Bijnens, G. Ecker and J. Gasser |
hep-ph/9411234 | Spin-Flavor Structure of Large N Baryons | The spin-flavor structure of large N baryons is described in the 1/N
expansion of QCD using quark operators. The complete set of quark operator
identities is obtained, and used to derive an operator reduction rule which
simplifies the 1/N expansion. The operator reduction rule is applied to the
axial currents, masses, ... | 1994-11-07 | 2008-11-26 | [
"hep-ph",
"hep-th"
] | Roger Dashen, Elizabeth Jenkins, and Aneesh V. Manohar |
hep-ph/9411235 | Tau as a Probe for New Physics | The usage of polarimetry and spin-correlation tests to determine the {\em
complete Lorentz structure} of the tau lepton's charged and neutral-current
couplings is reviewed. The emphasis is on tests for ``something'' in a $(V-A) +
$ ``something'' structure in ${J^{Charged}}_{Lepton}$ current, so as to bound
the scales $... | 1994-11-07 | 2010-11-01 | [
"hep-ph"
] | Charles A. Nelson |
hep-ph/9411236 | Topology and Confinement In Light-Front QCD | In 1+1 dimensional compact QCD the zero modes of $A^+$ give the theory a non-
trivial topological structure. We examine the effects of these topological
structures on the confining infrared structure of the theory. We show that the
ground state wavefunction of the topological excitation smears the infrared
behavior suf... | 1994-11-07 | 2007-05-23 | [
"hep-ph"
] | Stephen Pinsky |
hep-ph/9411231 | Runaway Quarks | When heavy nuclei collide, a quark-gluon plasma is formed. The plasma is
subject to strong electric field due to the charge of the colliding nuclei. The
electric field can influence the behavior of the quark-gluon plasma. In
particular, we might observe an increased number of quarks moving in the
direction of that fiel... | 1994-11-05 | 2009-10-28 | [
"hep-ph"
] | V. Gurarie |
hep-ph/9411230 | Electromagnetic Polarizabilities and Charge Radii of the Nucleons in the
Diquark-model | The diquark model is used to calculate the electromagnetic polarizabilities
and charge radii of the nucleons for three different potentials. Making the
scalar diquark lower in mass introduces a mixing angle $\theta $ between the
$\left| 56\right\rangle $ and $\left| 70\right\rangle $ states ,which allows an
improvement... | 1994-11-05 | 2009-10-28 | [
"hep-ph"
] | H. Liebl and Gary R. Goldstein |
hep-ph/9411227 | The Spin Structure of Nucleons and Deep Inelastic Scatterings | Based on a simple model which is compatible with the idea of the static quark
model and the parton model, the polarized structure functions of proton and
deuteron, two-spin asymmetries of $\pi ^0$ in polarized $pp$ reactions and
inelastic $J/\psi$ productions in polarized lepton-proton collisions are
analyzed. In parti... | 1994-11-05 | 2007-05-23 | [
"hep-ph"
] | Toshiyuki Morii |
hep-ph/9411228 | The Shape of Polarized Gluon Distributions | The recent high precision SMC data on polarized $\mu p$ scatterings have
again confirmed that very little of the proton spin is carried by quarks. To
unravel the mystery of the proton spin structure, it is quite important to know
the behavior of the polarized gluon distribution. By using the positivity
condition of dis... | 1994-11-05 | 2009-10-28 | [
"hep-ph"
] | T.Morii, S.Tanaka and T.Yamanishi |
hep-ph/9411229 | Naive nonabelianization and resummation of fermion bubble chains | We propose to extend the Brodsky-Lepage-Mackenzie scale-fixing prescription
by resumming exactly any number of one-loop vacuum polarization insertions into
one-loop diagrams. In this way, one makes maximal use of the information
contained in one-loop perturbative corrections combined with the one-loop
running of the ef... | 1994-11-05 | 2009-10-28 | [
"hep-ph"
] | M.Beneke and V.M Braun |
hep-ph/9411221 | Semileptonic Decays of Heavy Tetraquarks | There exist heavy tetraquark states $QQ \bar q \bar q$ in the heavy quark
limit. These states are stable with respect to strong interactions and hence
must decay weakly. It is shown that the semileptonic decay depends on a single
Isgur--Wise form factor, which can be expressed in term of the Isgur--Wise form
factors wh... | 1994-11-04 | 2010-11-01 | [
"hep-ph"
] | Chi-Keung Chow |
hep-ph/9411222 | Gauge-Yukawa Unification: Going Beyond GUTs | We discuss the basic idea of the Gauge-Yukawa Unification that is based on
the principle of the reduction of couplings. This method of unification relies
on the search of successful renormalization group invariant relations among
couplings, which do not originate from symmetry principles. The predictive
power of Grand ... | 1994-11-04 | 2007-05-23 | [
"hep-ph"
] | Jisuke Kubo, Myriam Mondragon and George Zoupanos |
hep-ph/9411223 | Probing CP in the Higgs Sector | We discuss how one may determine whether some Higgs particle is an eigenstate
of $CP$ or not, and if so, how we may probe whether it is $CP$-odd or
$CP$-even. The idea is applied to Higgs decay where correlations among momenta
of the decay products may yield the desired information. These are correlations
of decay plan... | 1994-11-04 | 2009-09-25 | [
"hep-ph"
] | Arild Skjold |
hep-ph/9411226 | Factorial Moments of Continuous Order | The normalized factorial moments $F_q$ are continued to noninteger values of
the order $q$, satisfying the condition that the statistical fluctuations
remain filtered out. That is, for Poisson distribution $F_q = 1$ for all $q$.
The continuation procedure is designed with phenomenology and data analysis in
mind. Exampl... | 1994-11-04 | 2009-10-28 | [
"hep-ph"
] | R.C.Hwa |
hep-ph/9411224 | Bounds on Compositeness from Neutrinoless Double Beta Decay | Assuming the existence of a heavy Majorana neutral particle arising from a
composite model scenario we discuss the constraints imposed by present
experimental limits of half-life neutrinoless double beta decay
$(0\nu\beta\beta ) $ measurements on the coupling of the heavy composite
neutrinos to the gauge bosons. For ne... | 1994-11-04 | 2009-10-28 | [
"hep-ph"
] | Orlando Panella and Yogendra N. Srivastava |
hep-ph/9411217 | Towards the Phenomenology of QCD-Instanton Induced Particle Production | We present a first status report on a broad and systematic study of possible
manifestations of QCD-instantons at HERA. Considerable motivation comes from
the close analogy between instanton-induced $B+L$ violation in electroweak
processes and effects of QCD-instantons in deep inelastic scattering. We
concentrate on the... | 1994-11-03 | 2007-05-23 | [
"hep-ph"
] | A. Ringwald and F. Schrempp |
hep-ph/9411216 | Tests of flavour independence in heavy quark potential models | We review some rigourous consequences of flavour independence on the spectrum
and properties of hadrons in potential models, with emphasis on hadrons with
two heavy quarks, such as $(b\bar c)$ mesons and $(QQq)$ baryons. | 1994-11-03 | 2010-11-01 | [
"hep-ph"
] | Jean-Marc Richard (Grenoble) |
hep-ph/9411218 | Fermion Masses in Superstring Theory | We give a model-independent discussion of fermion masses in four-dimensional
heterotic superstring theories. We discuss the tree level contributions and
quantum corrections, including one-loop threshold effects and masses generated
as a result of non-perturbative supersymmetry breaking. We also point out that
superstri... | 1994-11-03 | 2010-11-01 | [
"hep-ph",
"hep-th"
] | I. Antoniadis and T.R. Taylor |
hep-ph/9411220 | New Corrections of Order $\alpha^6$ to $s$-Levels of Two-Body Systems | New corrections to the energy of $S$-levels of positronium of order
$m\alpha^6$ which are as large as several hundred kilohertz are obtained. A new
recoil correction of order $\alpha(Z\alpha)^5(m/M)m$ to the Lamb shift in
hydrogen is calculated. This correction turns out to be too small from the
phenomenological point ... | 1994-11-03 | 2009-10-28 | [
"hep-ph"
] | Michael I. Eides and Howard Grotch |
hep-ph/9411215 | The $\Lambda_b\to J/\psi+\Lambda$ Decay Revisited | 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... | 1994-11-03 | 2007-05-23 | [
"hep-ph"
] | Hai-Yang Cheng and B. Tseng |
hep-ph/9411219 | Atmospheric Neutrino Problem in Maximally-Mixed Three Generations of
Neutrinos | Motivated by the indication that both the atmospheric and the solar neutrino
puzzles may simultaneously be solved by (vacuum as well as matter-induced
resonant) oscillations of two generations of neutrinos with large mixing, we
have analyzed the data on the atmospheric and solar neutrinos assuming that all
{\it three} ... | 1994-11-03 | 2014-11-17 | [
"hep-ph",
"astro-ph"
] | C. Giunti, C. W. Kim and J. D. Kim |
hep-ph/9411206 | An Open Universe from Inflation | We present a natural scenario for obtaining an open universe ($\Omega _0<1$)
through inflation. In this scenario, there are two epochs of inflationary
expansion---an epoch of `old inflation,' during which the inflaton field is
stuck in a false vacuum, followed by an epoch of `new inflation,' during which
the inflaton f... | 1994-11-02 | 2016-08-24 | [
"hep-ph",
"astro-ph",
"hep-th"
] | M. Bucher (Princeton U.), A.S. Goldhaber (SUNYSB), and N. Turok |
hep-ph/9411213 | Isospin Considerations in Correlations of Pions and $B$ mesons | The correlations between a $B$ meson and a pion produced nearby in phase
space should respect isospin reflection symmetry $I_3 \to -I_3$. Thus, one
generally expects similar $\pi^+ B^0$ and $\pi^- B^+$ correlations (non-exotic
channels), and similar $\pi^- B^0$ and $\pi^+ B^+$ correlations (exotic
channels). Exceptions... | 1994-11-02 | 2009-10-28 | [
"hep-ph"
] | Isard Dunietz and Jonathan L. Rosner |
hep-ph/9411212 | Towards a Field Theoretical Description of Multiparticle Production in
High Energy Collisions | We present an effective field theory of multiparticle correlations based on
analogy with Ginzburg-Landau theory of superconductivity. With the assumption
that the field represents particle density fluctuations, and in the case of
gaussian-type effective action we find that there are no higer-order
correlations, in agre... | 1994-11-02 | 2009-09-25 | [
"hep-ph"
] | I. Sarcevic and H.-Th. Elze (University of Arizona) |
hep-ph/9411214 | Issues in the Determination of Parton Distribution Functions | The CTEQ and MRS parton distributions involve a substantial number (~30) of
parameters that are fit to a large number (~900) of data. Typically, these
groups produce fits that represent a good fit to the data, but there is no
substantial attempt to determine the errors associated with the fits.
Determination of errors ... | 1994-11-02 | 2007-05-23 | [
"hep-ph",
"hep-ex"
] | John C. Collins and Davison E. Soper |
hep-ph/9411210 | Heavy Meson Hyperfine Splitting: A Complete $1/m_Q$ Calculation | The hyperfine splittings $\Delta_D=(m_{D^*_s}-m_{D_s})-(m_{D^{*+}}-m_{D^+})$
and $\Delta_B=(m_{B^*_s}-m_{B_s})-(m_{B^{*0}}-m_{B^0})$ are analyzed in the
framework of an effective lagrangian possessing chiral, heavy flavour and spin
symmetries, explicitly broken by a complete set of first order terms. Among
these terms,... | 1994-11-02 | 2009-10-28 | [
"hep-ph"
] | N. Di Bartolomeo, F. Feruglio, R. Gatto and G. Nardulli |
hep-ph/9411211 | Nonperturbative Corrections in Resummed Cross Sections | We show that the resummation of large perturbative corrections in QCD leads
to ambiguities in high energy cross sections that are suppressed by powers of
large momentum scales. These ambiguities are caused by infrared renormalons,
which are a general feature of resummed hard-scattering functions in
perturbative QCD, ev... | 1994-11-02 | 2014-11-17 | [
"hep-ph"
] | G.P.Korchemsky and G.Sterman |
hep-ph/9411225 | Oblique corrections and the quadratic approximation in electroweak
precision testing | This paper is withdrawn. A revised and expanded version of this work is
available as hep-ph/9603323. | 1994-11-02 | 2008-02-03 | [
"hep-ph"
] | Anirban Kundu and Probir Roy |
hep-ph/9411209 | Renormalization Group Improved Radiative Corrections to the
Supersymmetric Higgs Boson Masses | The one-loop radiative corrections to the Higgs boson potential in the MSSM,
originating from the top quark and squark loops, are summed in the leading log
approximation using the renormalization group. The RG improved effective
potential is minimized and the corrections to the CP-odd and CP-even Higgs
boson masses are... | 1994-11-02 | 2015-06-25 | [
"hep-ph"
] | A.V.Gladyshev, D.I.Kazakov |
hep-ph/9411208 | Can We Identify a Light Neutralino in B-Factories | If a light gaugino sector exists, then the lightest supersymmetric particle
(LSP) has a chance of being pair-produced in rare B-decays. As a consequence of
neutral flavour violation in most supersymmetric models, such decays can occur
at the tree-level and reinforce the channels $B \longrightarrow K(K^{*}) +
invisible$... | 1994-11-02 | 2009-10-28 | [
"hep-ph"
] | Rathin Adhikari and Biswarup Mukhopadhyaya |
hep-ph/9411204 | Determination of SU(6) Clebsch-Gordan Coefficients and Baryon Mass and
Electromagnetic Moment Relations | We compute and tabulate the Clesbsch--Gordan coefficients of the $SU(6)
\supset SU(3) \times SU(2)$ product ${\overline{\bf 56}} \otimes {\bf 56}$,
which are relevant to the nonrelativistic spin-flavor symmetry of the lightest
baryons. Under the assumption that the largest representation in this product,
the ${\bf 2695... | 1994-11-01 | 2009-10-28 | [
"hep-ph"
] | Richard F. Lebed |
hep-ph/9411205 | New strong sector, odd-parity processes, and the Tevatron | The color-octet isosinglet "rho" of a new strong-interaction sector is
readily produced in ppbar collisions. Its odd-parity decay to an "eta" and a
gluon may exceed its decay rate to dijets. At center of mass energies
sufficiently greater than the colored "rho" mass, the odd-parity production of
("omega" + colored "eta... | 1994-11-01 | 2009-10-28 | [
"hep-ph"
] | B. Holdom |
hep-ph/9411202 | Relativistic Effects in S-Wave Quarkonium Decay | The decay widths of S-wave quarkonia ($\etc,\etb\to \gg{~~and~~}
\J,\U\to\ee$) are calculated on the basis of a quasipotential approach. The
nontrivial dependence on relative quark motion of decay amplitude is taken into
consideration via quarkonium wave function. It is shown that relativistic
corrections may be large ... | 1994-11-01 | 2009-10-28 | [
"hep-ph"
] | A. P. Martynenko, V. A. Saleev |
hep-ph/9411201 | Possible Candidates for SUSY SO(10) Model with an Intermediate Scale | We study the possibility of an intermediate scale existing in supersymmetric
SO(10) grand unified theories: The intermediate scale is demanded to be around
10^{12} GeV so that neutrinos can obtain masses suitable for explaining the
experimental data on the deficit of solar neutrino with
Mikheev-Smirnov-Wolfenstein solu... | 1994-11-01 | 2009-10-28 | [
"hep-ph"
] | Masako Bando, Joe Sato and Tomohiko Takahashi |
hep-ph/9411203 | Implications of High Precision Experiments and the CDF Top Quark
Candidates | We discuss the consequences of recent experimental results from CDF, SLC, LEP
and elsewhere for the Standard Model and for new physics. A global fit to all
indirect precision data yields $m_t = 175 \pm 11^{+17}_{-19}$~GeV,
$\sin^2\theta_{MS} = 0.2317(3)(2)$, and $\alpha_s = 0.127(5)(2)$, where the
central values are fo... | 1994-11-01 | 2008-11-26 | [
"hep-ph"
] | Jens Erler and Paul Langacker |
hep-ph/9410415 | Thermalization and pinch singularities in non-equilibrium quantum field
theory | I argue that, within the Closed-Time-Path formalism, pinch singularities do
not appear in truly out of equilibrium situations. | 1994-10-31 | 2009-10-28 | [
"hep-ph",
"nucl-th"
] | P. Bedaque |
hep-ph/9411207 | Non-decoupling effects of the Standard Model Higgs boson to one loop | We study the complete non-decoupling effects of the standard model Higgs
boson to one loop. Using effective field theory methods, we integrate out the
Higgs boson and represent its non-decoupling effects by a set of gauge
invariant effective operators of the electroweak chiral Lagrangian. In a
previous work, we analyze... | 1994-10-31 | 2009-10-28 | [
"hep-ph"
] | Maria J. Herrero and Ester Ruiz Morales |
hep-ph/9410413 | Electric Dipole Moments of Neutron and Electron in Two-Higgs-Doublet
Model with Maximal $CP$ violation | We study the electric dipole moments(EDM) of the neutron and the electron in
the two-Higgs-doublet model, in the case that $CP$ symmetry is violated
maximally in the neutral Higgs sector. We take account of the Weinberg's
operator $O_{3g}=GG\t G$ as well as the operator $O_{qg}=\bar q\sigma\tilde Gq$
for the neutron, a... | 1994-10-31 | 2010-11-01 | [
"hep-ph"
] | Takemi HAYASHI, Yoshio Koide, Masahisa Matsuda, Morimitsu Tanimoto and
Seiichi Wakaizumi |
hep-ph/9410409 | Quark Mass Corrections to the Z Boson Decay Rates | The results of perturbative QCD evaluation of the ~m_f^2/M_Z^2 contributions
to the decay rates in Z--->bb and Z--->hadrons for the quark masses m_f << M_Z
are presented. The recent results due to the combination of renormalization
group constraints and the results of several other calculations are
independently confir... | 1994-10-31 | 2009-10-28 | [
"hep-ph"
] | Levan R. Surguladze |
hep-ph/9410414 | Matrix-Element Corrections to Parton Shower Algorithms | We discuss two ways in which parton shower algorithms can be supplemented by
matrix-element corrections to ensure the correct hard limit: by using
complementary phase-space regions, or by modifying the shower itself. In the
former case, existing algorithms are self-consistent only if the total
correction is small. In t... | 1994-10-31 | 2010-04-06 | [
"hep-ph"
] | Michael H. Seymour (Lund University, Sweden) |
hep-ph/9410411 | The Intercept of Symmetric Multigluon Configurations in the Variational
Approach | To calculate the intercept of the multigluon system in a symmetric spatial
configuration a variational method is developed based on a complete system of
one-gluon functions. The method is applied to two- and three- gluon cases to
compare with the known results. The convergence turns out rather slow. Ways to
improve res... | 1994-10-31 | 2007-05-23 | [
"hep-ph"
] | N. Armesto and M. A. Braun |
hep-ph/9410412 | Heavy-Neutrino Effects on tau-Lepton Decays | Minimal extensions of the Standard Model that are motivated by grand unified
theories or superstring models with an E_6 symmetry can naturally predict heavy
neutrinos of Dirac or Majorana nature. Such heavy neutral leptons violate the
de- coupling theorem at the one-loop electroweak order and hence offer a unique
chanc... | 1994-10-31 | 2011-04-15 | [
"hep-ph"
] | Apostolos Pilaftsis |
hep-ph/9410410 | Spin Structure of the Proton | By assuming that there is no significant intrinsic polarization of the gluon,
we have computed the polarized quark contributions to the proton's spin under
SU(3) flavor symmetry breaking for the polarized sea and have performed a
global leading-order QCD fit to obtain the spin-dependent quark distributions,
which could... | 1994-10-31 | 2009-10-28 | [
"hep-ph"
] | Chung-Yi Wu |
hep-ph/9410408 | Anomalous Violation of Conservation Laws in Minkowski Space:
Spontaneously Broken Gauge Theories | We extend our previous results on the evolution of quantum fermi fields in
Minkowski gauge field backgrounds to the case of spontaneously broken gauge
theories. We obtain a selection rule which relates the amount of fermion number
violation to the change in Higgs winding number of the configuration. This
selection rule... | 1994-10-30 | 2009-10-28 | [
"hep-ph",
"hep-th"
] | Thomas M. Gould and Stephen D.H. Hsu |
hep-ph/9410407 | Anomalous Violation of Conservation Laws in Minkowski Space | We consider the evolution of quantum fermi fields in Minkowski gauge field
backgrounds. Our motivation is the study of anomalous fermion number violating
processes. We derive selection rules for fermion scattering amplitudes which
relate the violation of fermionic charge to the change in winding between early
and late ... | 1994-10-30 | 2009-10-28 | [
"hep-ph",
"hep-th"
] | Thomas M. Gould and Stephen D.H. Hsu |
hep-ph/9410405 | Observations On the Potential Confinement of a Light Fermion | We consider possible dynamical models for a light fermion confined by a
potential field. With the Dirac equation only Lorentz scalar confinement yields
normalizable wavefunctions, while with the ``no pair'' variant of the Dirac
equation only Lorentz vector confinement has normal Regge behaviour.
A systematic investig... | 1994-10-30 | 2009-10-28 | [
"hep-ph"
] | M. G. Olsson, S. Veseli, and K. Williams |
hep-ph/9410406 | CP Violation and Strong Phases from Penguins in $\bf B^{\pm}\rightarrow
PP$ and $\bf B^{\pm}\rightarrow VP$ Decays | We calculate direct CP-violating rate asymmetries in charged $B\to PP$ and
$B\to VP$ decays arising from the interference of amplitudes with different
strong and CKM phases. The perturbative strong phases develop at order
$\alpha_s$ from absorptive parts of one-loop matrix elements of the
next-to-leading logarithm corr... | 1994-10-30 | 2014-11-17 | [
"hep-ph"
] | G. Kramer, W.F. Palmer, H. Simma |
hep-ph/9410403 | A Renormalization-Group Approach to Finite-Temperature Mass Corrections | We illustrate how the reorganization of perturbation theory at finite
temperature can be economically cast in terms of the Wilson-Polchinski
renormalization methods. We take as an example the old saw of the induced
thermal mass of a hot scalar field with a quartic coupling, which we compute to
second order in the coupl... | 1994-10-28 | 2007-05-23 | [
"hep-ph"
] | A. Marini and C.P. Burgess |
hep-ph/9410401 | Radiative Gaugino Masses | We investigate the possibility that gauginos are massless at tree level and
that the U(1) R-invariance is broken spontaneously by Higgs vevs, like the
chiral symmetry of quarks in the standard model, or else explicitly by
dimension 2 or 3 SUSY-breaking terms in the low energy effective Lagrangian.
Gluino and lightest n... | 1994-10-28 | 2008-02-03 | [
"hep-ph"
] | Glennys R. Farrar (Rutgers) and Antonio Masiero (Padova) |
hep-ph/9410400 | Equivalence Theorem and Probing the Electroweak Symmetry Breaking Sector | We examine the Lorentz non-invariance ambiguity in longitudinal weak-boson
scatterings and the precise conditions for the validity of the Equivalence
Theorem (ET). {\it Safe} Lorentz frames for applying the ET are defined, and
the intrinsic connection between the longitudinal weak-boson scatterings and
probing the symm... | 1994-10-28 | 2010-11-01 | [
"hep-ph"
] | Hong-Jian He, Yu-Ping Kuang, and C.-P. Yuan |
hep-ph/9410398 | Baryon Mass Splittings in Chiral Perturbation Theory | Baryon masses are calculated in chiral perturbation theory at the
one--loop-${\cal O}(p^3)$ level in the chiral expansion and to leading order in
the heavy baryon expansion. Ultraviolet divergences occur requiring the
introduction of counter--terms. Despite this neccessity, no knowledge of the
counter terms is required... | 1994-10-28 | 2009-10-28 | [
"hep-ph"
] | M. K. Banerjee and J. Milana |
hep-ph/9410396 | Structure Formation with Majoron Supermultiplet | We show that the late-decaying particle scenario may be realized in the
supersymmetric singlet majoron model with the majoron scale $10-200$ TeV. The
smajoron decaying into two neutrinos is the late-decaying particle with the
mass $0.1-1$ TeV and the life-time $2\times10^3-8\times10^4$ seconds. The lower
limit of the m... | 1994-10-28 | 2009-10-28 | [
"hep-ph"
] | E. J. Chun |
hep-ph/9410404 | Global QCD Analysis and the CTEQ Parton Distributions | The CTEQ program for the determination of parton distributions through a
global QCD analysis of data for various hard scattering processes is fully
described. A new set of distributions, CTEQ3, incorporating several new types
of data is reported and compared to the two previous sets of CTEQ
distributions. Comparison wi... | 1994-10-28 | 2009-10-28 | [
"hep-ph"
] | H.L. Lai, J. Botts, J. Huston, J.G. Morfin, J.F. Owen, J.W. Qiu, W.K.
Tung and H. Weerts |
hep-ph/9410402 | Pion Fusion in Peripheral $pp$ Collisions | We estimate the cross section for quasi-elastic double pion exchange in high
energy proton-proton collisions. Total and elastic $\pi\pi$ cross sections are
calculated in an equivalent pion approximation, with pion-baryon vertices taken
from chiral perturbation theory. | 1994-10-28 | 2009-10-28 | [
"hep-ph"
] | Alec J. Schramm, Berndt M\"uller |
hep-ph/9410399 | Chiral Symmetry Breaking for Fundamental Fermions | This talk gives an overview of the recent development in the study of
non-perturbative fermion-boson vertex in quenched QED towards achieving that
the fermion propagator satisfies the Ward-Takahashi identity, is
multiplicatively renormalizable, agrees with perturbation theory for weak
couplings and has a critical coupl... | 1994-10-28 | 2007-05-23 | [
"hep-ph"
] | A. Bashir |
hep-ph/9410397 | Detecting the Intermediate-Mass Neutral Higgs Boson at the LHC Through
$pp \to W H$ | We examine the exclusive signature $pp \to WH \to \ell \nu\;b \bar b$ at the
LHC. Although the backgrounds, principally arising from top production and
$Wjj$, are quite severe, it is shown that judicious application of phase-space
cuts and the use of $b$-tagging can in fact greatly enhance the detectability
of this cha... | 1994-10-28 | 2009-09-25 | [
"hep-ph"
] | Pankaj Agrawal, David Bowser-Chao, Kingman Cheung, and Duane Dicus |
hep-ph/9410393 | Proper-time methods in the presence of non-constant background fields | A formalism is developed to enable the construction of the effective action
and related quantities in QED for the case of time-varying background electric
fields. Some examples are studied and evidence is sought for a possible
transition to a phase in which chiral symmetry is spontaneously broken.
YCTP-P14-94 | 1994-10-27 | 2015-06-25 | [
"hep-ph"
] | Alan Chodos |
hep-ph/9410395 | Next-to-Leading Corrections at Small X | We discuss the role of sub-leading corrections to deep inelastic processes in
the small-x regime, and report recent results on the calculation of coefficient
functions and quark anomalous dimensions.
*To appear in the proceedings of the workshop QCD94, Montpellier, July '94. | 1994-10-27 | 2009-10-28 | [
"hep-ph"
] | S. Catani and F. Hautmann |
hep-ph/9410389 | A Natural Explanation of All Solar Neutrino Data by Resonant Spin-Flavor
Precession Scenario | It is emphasized that the $E_{\nu}$ (neutrino energy) spectrum of the $\nu_e$
survival probability in the Resonant Spin-Flavor Precession (RSFP) scenario has
very desirable shape to reconcile all existing solar neutrino data. As the
result, the RSFP scenario is shown to have rather broad allowed region to
reconcile the... | 1994-10-27 | 2009-09-25 | [
"hep-ph"
] | C. S. Lim and H. Nunokawa |
hep-ph/9410391 | Standard Model of the Electroweak Interaction: Theoretical Developments | We review recent theoretical progress in the computation of radiative
corrections beyond one loop within the standard model of electroweak
interactions, both in the gauge and Higgs sectors. In the gauge sector, we
discuss universal corrections of $\O(G_F^2M_H^2M_W^2)$, $\O(G_F^2m_t^4)$,
$\O(\alpha_sG_FM_W^2)$, and thos... | 1994-10-27 | 2007-05-23 | [
"hep-ph"
] | Bernd A. Kniehl |
hep-ph/9410392 | Soft Photons in Hadron-Hadron Collisions: Synchrotron Radiation from the
QCD Vacuum? | We discuss the production of soft photons in high energy hadron-hadron
collisions. We present a model where quarks and antiquarks in the hadrons emit
``synchrotron light'' when being deflected by the chromomagnetic fields of the
QCD vacuum, which we assume to have a nonperturbative structure. This gives a
source of pro... | 1994-10-27 | 2009-10-28 | [
"hep-ph",
"nucl-th"
] | G. W. Botz, P. Haberl, and O. Nachtmann |
hep-ph/9410394 | Surprises from Quarkonium Decay into Photons | The perturbative QCD approach to quarkonium decay into a photon and hadrons
is reconsidered. It is shown that a consistent treatment within perturbative
QCD calls for the introduction of a fragmentation contribution which has been
neglected so far. The ensuing phenomenological implications are discussed, and,
in partic... | 1994-10-27 | 2009-10-28 | [
"hep-ph"
] | S. Catani and F. Hautmann |
hep-ph/9410379 | Beyond the Standard Model in the Lepton Sector | Invited review talk at Glasgow ICHEP Conference, session Pa4 | 1994-10-26 | 2007-05-23 | [
"hep-ph"
] | Jose W. F. Valle |
hep-ph/9410385 | On the connection between the pinch technique and the background field
method | The connection between the pinch technique and the background field method is
further explored. We show by explicit calculations that the application of the
pinch technique in the framework of the background field method gives rise to
exactly the same results as in the linear renormalizable gauges. The general
method f... | 1994-10-26 | 2009-10-28 | [
"hep-ph"
] | Joannis Papavassiliou |
hep-ph/9410386 | The Case for a Kilometer-Scale High Energy Neutrino Detector | Doing astronomy with photons of energies in excess of a GeV has turned out to
be extremely challenging. Efforts are underway to develop instruments that may
push astronomy to wavelengths smaller than $10^{-14}$~cm by mapping the sky in
high energy neutrinos instead. Neutrino astronomy, born with the identification
of t... | 1994-10-26 | 2009-10-28 | [
"hep-ph"
] | F.Halzen |
hep-ph/9410382 | Single Spin Asymmetry in Inclusive Pion Production | It is shown how the single spin asymmetry observed in inclusive pion
production is related, in the helicity basis, to the imaginary part of the
product of two different distribution amplitudes, rather than to the usual
quark and gluon distribution functions; there is then no reason why it should
be zero even in massles... | 1994-10-26 | 2009-10-28 | [
"hep-ph"
] | Mauro Anselmino, M.E. Boglione and F. Murgia |
hep-ph/9410387 | Charm Mass Dependence of the $\CO(\alpha_s^2 n_f)$ Correction to
Inclusive $B\rightarrow X_c e\bar\nu_e$ Decay | We compute the $\alpha_s^2 n_f$ perturbative QCD contribution to semileptonic
B decay, including the finite mass of the charm quark. This result provides an
estimate of the size of the two-loop correction, which is found to be about
50\% of the one-loop correction. We use these results to set the scale for the
one-loop... | 1994-10-26 | 2011-01-25 | [
"hep-ph"
] | Michael Luke, Martin J. Savage and Mark B. Wise |
hep-ph/9410377 | Low Energy Effective Lagrangian of the Bess Model | In this paper the low energy limit of the BESS model is studied in a
systematic way. The method consists in eliminating the heavy vector field, by
use of its classical equations of motion, in the infinite mass limit. After the
elimination of the heavy degrees of freedom we get additional terms to the
Standard Model lag... | 1994-10-26 | 2009-10-28 | [
"hep-ph"
] | L.Anichini, R.Casalbuoni and S.De Curtis |
hep-ph/9410381 | Active Sterile Neutrino Conversions in a Supernova with Random Magnetic
Fields | {Large enough random magnetic fields may affect in an important way neutrino
conversion rates, even in the case where neutrinos have zero transition
magnetic moments. We consider their effect in the case of active to sterile
\neu conversions in a supernova and show that for KeV neutrino masses these
limits may overcome... | 1994-10-26 | 2007-05-23 | [
"hep-ph"
] | S. Pastor, V. Semikoz and Jose W. F. Valle |
hep-ph/9410374 | Evolution of Fields in a Second Order Phase Transition | We analyse the evolution of scalar and gauge fields during a second order
phase transition using a Langevin equation approach. We show that topological
defects formed during the phase transition are stable to thermal fluctuations.
Our method allows the field evolution to be followed throughout the phase
transition, for... | 1994-10-26 | 2009-10-28 | [
"hep-ph",
"astro-ph"
] | A.P.Martin and A.C.Davis |
hep-ph/9410378 | Causal quantum mechanics treating position and momentum symmetrically | De Broglie and Bohm formulated a causal quantum mechanics with a phase space
density whose integral over momentum reproduces the position probability
density of usual statistical quantum theory. We propose a causal quantum theory
with a joint probability distribution such that the separate probability
distributions for... | 1994-10-26 | 2015-06-25 | [
"hep-ph",
"hep-th"
] | S.M. Roy, V. Singh |
hep-ph/9410375 | Fermi-Dirac Distributions for Quark Partons | We propose to use Fermi-Dirac distributions for quark and antiquark partons.
It allows a fair description of the $x$-dependence of the very recent NMC data
on the proton and neutron structure functions $F_2^p(x)$ and $F_2^n(x)$ at
$Q^2=4$ GeV$^2$, as well as the CCFR antiquark distribution $x\overline q(x)$.
We show th... | 1994-10-26 | 2019-08-17 | [
"hep-ph"
] | C. Bourrely, F. Buccella, G. Miele, G, Migliore, J. Soffer, V. Tibullo |
hep-ph/9410372 | Glueballs and Instantons | We study correlation functions and Bethe Salpeter amplitudes for the scalar,
the pseudoscalar and the tensor glueballs using an instanton-based model of the
QCD vacuum. We consider both the pure gauge case and the situation for real QCD
with two light quark flavors. We show that instantons lead to a strong
modification... | 1994-10-26 | 2009-10-28 | [
"hep-ph",
"hep-lat"
] | T. Schaefer and E. V. Shuryak |
hep-ph/9410388 | Unique Signature of Electroweak Penguin In Pure Hadronic $B$ Decays | We study elelctroweak penguin contributions in pure hadronic $B$ decays in
the Standard and two-Higgs-doublet models. We find that in $B_s\rightarrow
\pi^0 (\eta\;, \phi)$ and $B_s\rightarrow \rho^0 (\eta\;, \phi)$ decays, the
electroweak penguin contributions dominate over all other contribuitons. These
processes prov... | 1994-10-26 | 2009-10-28 | [
"hep-ph"
] | Deshpande, He and Trampetic |
hep-ph/9410383 | Target independence of the `proton spin' effect | Recent work by the author in collaboration with S. Narison and G. Veneziano
on the EMC-SMC-SLAC `proton spin' effect is reviewed. This uses a novel
approach to deep inelastic scattering in which the matrix elements arising from
the OPE are factorised into composite operator propagators and proper vertices.
For polarise... | 1994-10-26 | 2009-10-28 | [
"hep-ph"
] | G.M. Shore |
hep-ph/9410390 | Parton Model From Field Theory via Light-Front Current Algebra: The
Good, the Bad, and the Terrible | The emergence of parton model from field theory in the context of light-front
current algebra and naive canonical manipulations is reviewed. Shortcomings of
the naive canonical picture, especially concerning renormalization issues are
discussed. To illustrate the novel aspects of the renormalization problem in
light-fr... | 1994-10-26 | 2007-05-23 | [
"hep-ph"
] | A. Harindranath |
hep-ph/9410376 | Unified QCD Evolution Equations and the Dominant Behaviour of Structure
Functions at Low X | We consider a system of evolution equations for quark and gluon structure
functions satisfying the leading-logarithmic behaviour due to both QCD
collinear $ \left(LLQ^2 \right) $ and infrared $ (LL1/x) $ singularities. We
show that these equations leave undetermined an arbitrary regular function of
$j$ in the Mellin-tr... | 1994-10-26 | 2008-11-26 | [
"hep-ph"
] | R. Peschanski and S. Wallon |
hep-ph/9410380 | Schemes for Neutrino Mass and Mixing | Review at session Pa7, Glasgow ICHEP conference | 1994-10-26 | 2016-09-01 | [
"hep-ph"
] | Jos\'e W.F. Valle |
hep-ph/9410384 | Particle Physics with High Energy Neutrinos | The topic of this review is the particle astrophysics of high energy
neutrinos. High energy is defined as $E_{\nu} > 100$~MeV. Main topics include:
-- atmospheric neutrinos and muons from $\pi$, $K$ and charm decay. They probe
uncharted territory in neutrino oscillations and constitute both the background
and calibrati... | 1994-10-26 | 2010-11-30 | [
"hep-ph"
] | T.K.Gaisser, F.Halzen and T.Stanev |
hep-ph/9410367 | Outreach and Education on High Energy Physics | We review ongoing efforts and discuss possible future directions in informing
the public and educating students about Particle Physics. | 1994-10-25 | 2007-05-23 | [
"hep-ph"
] | R. Michael Barnett |
hep-ph/9410361 | THE PROCESS $e^+ e^- \rightarrow l \bar l q \bar q$ AT LEP AND NLC | The cross sections for the reaction $e^+ e^- \rightarrow l \bar l q \bar q $
and for similar four fermion production processes at LEP~1, LEP~2 and the NLC
are calculated. Due to the extraordinary symmetry properties of the process,
very compact analytical formulae describe the double differential distributions
in the i... | 1994-10-25 | 2009-10-28 | [
"hep-ph"
] | Dima Bardin, Arnd Leike, Tord Riemann |
hep-ph/9410368 | $K_{e5}$ Decays in Chiral Perturbation Theory | We evaluate the branching ratios for the decays $K\rightarrow \pi\pi\pi e\nu$
at leading order in chiral perturbation theory and give an isospin relation for
the decay rates. | 1994-10-25 | 2009-10-28 | [
"hep-ph"
] | Stefan Blaser |
hep-ph/9410369 | Unitarity And Anomalous Top-Quark Yukawa Couplings | Unitarity constraints on anomalous top-Higgs couplings are examined. We also
compare the unitarity constraints with the constraints from electroweak
baryogenesis and electric dipole moments derived earlier. | 1994-10-25 | 2011-01-13 | [
"hep-ph"
] | K. Whisnant, Bing-Lin Young and X. Zhang |
hep-ph/9410364 | Bounds on Anomalous Gauge Boson Couplings From Partial Z Widths at LEP | We place bounds on anomalous gauge boson couplings from LEP data with
particular emphasis on those couplings which do not contribute to $Z$ decays at
tree level. We use an effective field theory formalism to compute the one-loop
corrections to the $Z\rightarrow {\overline f} f$ decay widths resulting from
non-standard ... | 1994-10-25 | 2009-10-28 | [
"hep-ph"
] | S. Dawson (BNL) and G. Valencia (Iowa State) |
hep-ph/9410373 | Amplitude Zeros in Radiative Decays of Scalar Particles | We study amplitude zeros in radiative decay processes with a photon or a
gluon emission of all possible scalar particles(e.g. scalar leptoquarks) which
may interact with the usual fermions in models beyond the standard model. For
the decays with a photon emission, the amplitudes clearly exhibit the
factorization proper... | 1994-10-25 | 2010-11-01 | [
"hep-ph"
] | Deshpande, He and Oh |
hep-ph/9410362 | Heavy Quark Masses from QCD Sum Rules | I review recent determinations of the (on-shell) charm- and beauty-quark
masses in the framework of relativistic and non-relativistic ratios of Laplace
transform QCD moment sum rules. The validity of the non-relativistic version of
QCD sum rules in this particular application is discussed. | 1994-10-25 | 2007-05-23 | [
"hep-ph"
] | C. A. Dominguez |
hep-ph/9410370 | Stability of Fine Tuned Hierarchies in Strongly Coupled Chiral Models | A fine tuned hierarchy between a strongly coupled high energy compositeness
scale and a much lower chiral symmetry breaking scale is a requisite ingredient
in many models of dynamical electroweak symmetry breaking. Using a
nonperturbative continuous Wilson renormalization group equation approach, we
explore the stabili... | 1994-10-25 | 2009-10-28 | [
"hep-ph"
] | T.E. Clark and S.T. Love |
hep-ph/9410365 | Fermion Production in the Background of Minkowski Space Classical
Solutions in Spontaneously Broken Gauge Theory | We investigate fermion production in the background of Minkowski space
solutions to the equations of motion of $SU(2)$ gauge theory spontaneously
broken via the Higgs mechanism. First, we attempt to evaluate the topological
charge $Q$ of the solutions. We find that for solutions $Q$ is not well-defined
as an integral o... | 1994-10-25 | 2009-10-28 | [
"hep-ph",
"hep-th"
] | E. Farhi, J. Goldstone, S. Gutmann, K. Rajagopal, R. Singleton |
hep-ph/9410366 | Spin dependent structure function $ g_{2}(x)$ in quark-parton model.
Possible interpretation and numerical estimates | It is shown that in the special infinite momentum frame where photon has pure
transverse components at $P\rightarrow\infty$ the spin-dependent deep inelastic
structure function $ g_{2}(x)$ has a reasonable interpretation in terms of
quark-parton wave functions, whereas in the conventional frame where photon has
pure z-... | 1994-10-25 | 2007-05-23 | [
"hep-ph"
] | N.L. Ter-Isaakyan |
hep-ph/9410371 | Spectral Analysis of Neutrino Mixing Mechanisms | The prospects of using spectral measurements of solar neutrinos to
distinguish different mechanisms of neutrino flavor mixing are analyzed. The
mechanisms studied include the conventional mass mixing mechanism and an
alternative mechanism which assumes a flavor nondiagonal neutrino-gravity
coupling. | 1994-10-25 | 2007-05-23 | [
"hep-ph"
] | C.N. Leung and P.I. Krastev |
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