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/9401308 | Can Disordered Chiral Condensates Form? A Dynamical Perspective | We address the issue of whether a region of disordered chiral condensate
(DCC), in which the chiral condensate has components along the pion
directions, can form. We consider a system going through the chiral phase
transition either via a quench, or via relaxation of the high temperature phase
to the low temperature ... | 1994-01-21 | 2009-10-28 | [
"hep-ph"
] | D. Boyanovsky, H. J. de Vega and R. Holman |
hep-ph/9401307 | Quark cluster signatures in deuteron electromagnetic interactions | A suggestion is made for distinguishing 2N and 6q short range correlations
within the deuteron. The suggestion depends upon observing high momentum
backward nucleons emerging from inelastic electromagnetic scattering from a
deuteron target. A simple model is worked out to see the size of effects that
may be expected. | 1994-01-21 | 2009-09-25 | [
"hep-ph",
"nucl-th"
] | C.E. Carlson and K.E. Lassila |
hep-ph/9401303 | Form Factors in the Heavy Quark and Chiral Limit: Pole dominance in
$\bar B\to \pi e \bar\nu_e$ | It is shown that the form factors in the semileptonic decay of ground state
heavy mesons to light pseudoscalar mesons are dominated by the vector meson
pole at all momentum transfers. First, the general approaches to modeling form
factors in terms of quark model, pole dominance, or hybrid shapes are reviewed.
It is the... | 1994-01-21 | 2009-10-28 | [
"hep-ph"
] | Benjamin Grinstein and Paul F. Mende |
hep-ph/9401302 | The off-shell electromagnetic form factors of pions and kaons in chiral
perturbation theory | The off-shell electromagnetic vertex of a (pseudo-) scalar particle contains,
in general, two form factors F and G which depend, in addition to the squared
momentum transfer, on the invariant masses associated with the initial and
final legs of the vertex. Chiral perturbation theory to one loop is used to
calculate the... | 1994-01-21 | 2009-09-25 | [
"hep-ph",
"nucl-th"
] | T. E. Rudy, H. W. Fearing and S. Scherer |
hep-ph/9401298 | Non-Leptonic Decays of Beauty Hadrons -- from Phenomenology to Theory | `Anyone who keeps the ability to see beauty never grows old' Franz Kafka.
In the last few years considerable progress has been achieved in our
understanding of the decays of heavy flavour hadrons. One can now calculate
inclusive transition rates in QCD proper through an expansion in inverse powers
of the heavy flavou... | 1994-01-20 | 2009-09-25 | [
"hep-ph"
] | I. Bigi, B. Blok, M. Shifman, N. Uraltsev, A. Vainshtein |
hep-ph/9401293 | Comment on "Analytic Solution of the Relativistic Coulomb Problem for a
Spinless Salpeter Equation" | We demonstrate that the analytic solution for the set of energy eigenvalues
of the semi-relativistic Coulomb problem reported by B. and L. Durand is in
clear conflict with an upper bound on the ground-state energy level derived by
some straightforward variational procedure. | 1994-01-20 | 2007-05-23 | [
"hep-ph",
"hep-th"
] | Wolfgang Lucha and Franz F. Sch\"oberl |
hep-ph/9401291 | Do Deep Inelastic Scattering Data Favor a Light Gluino | A next--to--leading order QCD analysis of deep inelastic scattering data is
performed allowing for contributions due to a light gluino. We obtain the
values of $\alpha_s(M_Z^2) \pm \delta \alpha_s^{stat} = 0.108 \pm 0.002, 0.124
\pm 0.001, 0.145 \pm 0.009$ for QCD, SUSY QCD with a Majorana gluino and a
Dirac gluino res... | 1994-01-20 | 2011-07-19 | [
"hep-ph"
] | Johannes Bl\"umlein and James Botts |
hep-ph/9401296 | Rapidity Gap in Jet Events at Lep200 | We analyze various perturbative mechanisms for the production of jet events
containing rapidity gaps in $e^+e^-$ annihilation at LEP200 energies. We found
that the processes $e^+e^- \to \gamma^* \gamma^*, \gamma^* Z, Z Z, WW \to 4~
jets$ generate gap events at an observable rate. We point out that LEP200
offers a uniqu... | 1994-01-20 | 2009-09-25 | [
"hep-ph"
] | H.J. Lu |
hep-ph/9401297 | Intermediate mass Higgs bosons at TeV $e\gamma$ colliders in the ${\cal
{MSSM}}$ | We study the cross sections for the production of intermediate mass Higgs
bosons via the reactions $e^-\gamma\rightarrow \nu_eW^-\Phi^0$,
$e^-\gamma\rightarrow \nu_eH^-\Phi^0$, $e^-\gamma\rightarrow e^-Z^0\Phi^0$ and
$e^-\gamma\rightarrow e^-H^+H^-$ in the Minimal Supersymmetric Standard Model
(with $\Phi^0=H^0,h^0$ an... | 1994-01-20 | 2014-11-17 | [
"hep-ph"
] | Stefano Moretti |
hep-ph/9401295 | Singe Top Production at LEP 200 | We present exact tree level cross sections for the single top production
process $e^- e^+ \rightarrow e^- \bar{\nu}_e t \bar{b} $ at LEP~200. The
results reproduce roughly those obtained earlier by using the equivalent real
photon approximation and we confirm the observation that detecting a top
heavier than half the c... | 1994-01-20 | 2009-09-25 | [
"hep-ph"
] | K. Hagiwara, M. Tanaka and T. Stelzer |
hep-ph/9401290 | Grand unification for mirror fermions | The possibility of grand unification of the standard model (SM) with fermion
spectrum extended to include mirror fermions is examined. SM gauge couplings do
not automatically unify. SO(10) grand unification is studied with one
intermediate scale. Renormalization group equations (RGE) for fermion Yukawa
couplings and th... | 1994-01-20 | 2009-10-28 | [
"hep-ph"
] | F. Csikor and I. Montvay |
hep-ph/9401294 | Singular terms of helicity amplitudes at one-loop in QCD and the soft
limit of the cross sections of multi-parton processes | We describe a general method that enables us to obtain all the singular terms
of helicity amplitudes of n-parton processes at one loop. The algorithm uses
helicity amplitudes at tree level and simple color algebra.
We illustrate the method by calculating the singular part of the one loop
helicity amplitudes of all $ ... | 1994-01-20 | 2009-10-28 | [
"hep-ph"
] | Zoltan Kunszt, Adrian Signer and Zoltan Trocsanyi |
hep-ph/9401299 | Optimized Variables of the Study of $\Lambda_b$ Polarization | The value of the $b$-baryon polarization can be extracted from inclusive data
at LEP with better than 10\% precision based on current statistics. We present
a new variable by which to measure the polarization, which is the ratio of the
average electron energy to the average neutrino energy. This variable is both
sensit... | 1994-01-20 | 2009-09-15 | [
"hep-ph"
] | G. Bonvicini and L. Randall |
hep-ph/9401281 | Baryonic and Gluonic Correlators in Hot QCD | We extend our earlier work on static color singlet correlators in high T QCD
(DeTar correlators) to baryonic and gluonic sources, and estimate the
corresponding screening masses using the dimensionally reduced theory. We
discuss spin and polarization dependence of meson and baryon masses in the $T
\rightarrow \infty$ l... | 1994-01-19 | 2010-11-01 | [
"hep-ph"
] | T.H. Hansson, M. Sporre, I. Zahed |
hep-ph/9401278 | The Nonperturbative Wave Functions, Transverse Momentum Distribution and
QCD Vacuum Structure | It is shown that there is one-to-one correspondence between two, apparently
different problems: \\ 1. The determination of the meanvalues of transverse
moments $\la \vec{k}_{\perp}^{2n} \ra $ for the nonperturbative pion wave
function $\psi(\k, x)$ and \\ 2. The evaluation of the mixed vacuum condensates
$ \la \bar{q}G... | 1994-01-19 | 2009-10-28 | [
"hep-ph"
] | A.Zhitnitsky |
hep-ph/9401285 | Quark-Induced Correlations between Instantons Drive the Chiral Phase
Transition | A simple model for the instanton ensemble at finite temperature T is
proposed, including ``random" and strongly correlated ``molecular" component.
T-dependence of fermionic zero modes naturally leads to chiral symmetry
restoration, without instanton suppression. Moreover, at $T=(1-2) T_c$ the
non-perturbative effects... | 1994-01-19 | 2009-10-28 | [
"hep-ph",
"hep-lat"
] | E.-M.Ilgenfritz and E. V. Shuryak |
hep-ph/9401284 | On the temperature dependence of correlation functions in the space like
direction in hot QCD | We study the temperature dependence of quark antiquark correlations in the
space like direction. In particular, we predict the temperature dependence of
space like Bethe-Salpeter amplitudes using recent Lattice gauge data for the
space like string potential. We also investigate the effect of the space like
string poten... | 1994-01-19 | 2010-11-01 | [
"hep-ph",
"hep-lat"
] | Volker Koch |
hep-ph/9401292 | Transfer matrix method and intermittency generating dynamics | A transfer matrix method relating the process of refinement of a fractal
measure to thermodynamic formalism of an appropriate Ising model is applied to
the analysis of intermittency in hadron collisions revealing that underlying
dynamics is that of period doublings. | 1994-01-19 | 2009-10-28 | [
"hep-ph"
] | A.V.Batunin and S.M.Sergeev |
hep-ph/9401279 | pbarp partial wave analysis and NbarN potentials | Invited talk given at the NAN '93 Conference in Moscow, Russia, sept 1993. A
review is given of the different ways to describe pbarp scattering. Next the
Nijmegen partial wave analyses of the pbarp data as well as the corresponding
Nijmegen NbarN database are discussed. These partial wave analyses are finally
used as a... | 1994-01-19 | 2011-04-15 | [
"hep-ph",
"nucl-th"
] | J.J. de Swart, Th.A. Rijken, and R.Timmermans |
hep-ph/9401282 | One loop calculations on the Wess-Zumino-Witten anomalous functional at
finite temperature | We analyze the finite temperature (T) extension of the Wess-Zumino- Witten
functional, discussed in a previous work, to one loop in chiral perturbation
theory. As a phenomenological application, we calculate finite temperature
corrections to the amplitude of the $\pi^0$ decay into two photons. This
calculation is perfo... | 1994-01-19 | 2009-10-28 | [
"hep-ph"
] | R.F. Alvarez-Estrada, A. Dobado and A. Gomez Nicola (Departamento
Fisica Teorica U.C.M., Madrid, Spain) |
hep-ph/9401288 | Semileptonic and Exclusive Rare B Decays | The exclusive rare decay $B \ra K^\ast \gamma$ takes place in a region of
maximum recoil, $q^{2}=0$, posing a problem for nonrelativistic quark models
which are usually thought to be most reliable at zero recoil. The
Bauer--Stech--Wirbel (BSW) model, formulated in the infinite--momentum--frame
(IMF) formalism, is desig... | 1994-01-19 | 2009-10-28 | [
"hep-ph"
] | Patrick J. O'Donnell and Q. P. Xu |
hep-ph/9401286 | The Nonperturbative Equation for the Infrared \Pi_{44}(0) - Limit in the
Temporal Axial Gauge | The nonperturbative equation for the infrared $\Pi_{44}(0)$-limit is built by
using the Slavnov-Taylor identity to define the three-gluon vertex function in
the temporal axial gauge. We found that all vertex corrections should be taken
into account along with the standard ring graphs to keep the gauge covariance
throug... | 1994-01-19 | 2007-05-23 | [
"hep-ph"
] | O.K.Kalashnikov |
hep-ph/9401289 | Hadronic Wave Functions in the Instanton Model | We study hadronic wave functions using an instanton model for the QCD vacuum.
The wave functions are defined in terms of gauge invariant Bethe Salpeter
amplitudes which we have determined numerically using a Monte Carlo simulation
of the instanton ensemble. We find that the pion and the proton, as well as the
rho meson... | 1994-01-19 | 2009-10-28 | [
"hep-ph",
"hep-lat"
] | T. Schaefer and E. V. Shuryak |
hep-ph/9401283 | Hadron Radiation in Leptonic $Z$ Decays | The rate for the final state radiation of hadrons in leptonic $Z$ decays is
evaluated, using as input experimental data for $\sigma (e^+e^-\to hadrons)$ in
the low energy region. Configurations with a lepton pair of large and a
hadronic state of low invariant mass are dominant. A relative rate
$\Gamma_{l\bar l had}/\Ga... | 1994-01-19 | 2010-11-01 | [
"hep-ph"
] | A.H. Hoang, M. Je\.zabek, J.H. K\"uhn and T. Teubner |
hep-ph/9401287 | Cluster Production in Quark-Hadron Phase Transition | The problem of cluster formation and growth in first-order quark-hadron phase
transition in heavy-ion collisions is considered. Behaving as Brownian
particles, the clusters carry out random walks and can encounter one another,
leading to coalescence and breakup. A simulation of the process in cellular
automaton suggest... | 1994-01-19 | 2009-10-28 | [
"hep-ph",
"nucl-th"
] | Rudolph C. Hwa, C.S. Lam, and Jicai Pan |
hep-ph/9401280 | Relativistic Quark Model Based Description of Low Energy NN Scattering | A description of the NN scattering is constructed starting from the $\pi,
\eta, \eta'$ pseudoscalar-, the $\rho, \phi, \omega$ vector-, and the
$\varepsilon(600), a_0, f_0(1400)$ scalar - meson-nucleon coupling constants,
which we obtain within a relativistic quark model. Working within the
Blankenbecler-Sugar-Logunov-... | 1994-01-18 | 2015-06-25 | [
"hep-ph",
"nucl-th"
] | R. Antalik and V.E. Lyubovitskij |
hep-ph/9401276 | Strong and Electromagnetic Decays of Two New $Lambda_c^*$ Baryons | Two recently discovered excited charm baryons are studied within the
framework of Heavy Hadron Chiral Perturbation Theory. We interpret these new
baryons which lie $308 \MeV$ and $340 \MeV$ above the $\Lambda_c$ as $I=0$
members of a P-wave spin doublet. Differential and total decay rates for their
double pion transiti... | 1994-01-18 | 2009-10-28 | [
"hep-ph"
] | Peter Cho |
hep-ph/9401277 | Exclusive Radiative B-Decays in the Light-Cone QCD Sum Rule Approach | We carry out a detailed study of exclusive radiative rare $B$-decays in the
framework of the QCD sum rules on the light cone, which combines the
traditional QCD sum rule technique with the description of final state vector
mesons in terms of the light-cone wave functions of increasing twist. The
decays considered are: ... | 1994-01-18 | 2010-11-01 | [
"hep-ph"
] | A. Ali, V.M. Braun, H. Simma |
hep-ph/9401267 | Couplings of heavy hadrons with soft pions from QCD sum rules | We estimate the couplings in the Heavy Hadron Chiral Theory (HHCT) lagrangian
from the QCD sum rules in an external axial field. Stability of the sum rules
at moderate values of the Borel parameter is poor that probably signals a slow
convergence of the OPE series. At large values of the Borel parameter they
stabilize,... | 1994-01-17 | 2007-05-23 | [
"hep-ph"
] | A.G.Grozin and O.I.Yakovlev |
hep-ph/9401270 | Mass Dependent $\alpha_S$ Evolution and the Light Gluino Existence | There is an intriguing discrepancy between \alpha_s(M_Z) values measured
directly at the CERN $Z_0$-factory and low-energy (at few GeV) measurements
transformed to $Q=M_{Z_0}$ by a massless QCD \alpha_s(Q) evolution relation.
There exists an attempt to reconcile this discrepancy by introducing a light
gluino $\gl$ in t... | 1994-01-17 | 2010-11-01 | [
"hep-ph"
] | D.V. Shirkov and S.V. Mikhailov |
hep-ph/9401265 | Electroweak Baryogenesis in the Adiabatic Limit | Electroweak baryogenesis can occur in the ``adiabatic limit,'' in which
expanding bubbles of true vacuum are assumed to have rather thick walls and be
slowly moving. Here the problem of calculating the baryon asymmetry in this
limit is reconsidered.
A simple prescription for obtaining the relevant kinetic equations i... | 1994-01-17 | 2009-10-28 | [
"hep-ph"
] | Michael Dine and Scott Thomas |
hep-ph/9401269 | Jets in photon-photon collisions: from TRISTAN to J/N-LC | We study jet production in photon-photon reactions at the next-to-leading
logarithm accuracy. Special emphasis is placed on the discussion of the
theoretical uncertainties and on the role of the hadronic component of the
photon structure function. We also discuss subtleties in the quasi-real photon
spectrum when the ph... | 1994-01-17 | 2011-07-19 | [
"hep-ph"
] | P. Aurenche, J.-Ph. Guillet, M. Fontannaz, Y. Shimizu, J. Fujimoto, K.
Kato |
hep-ph/9401272 | $SU(4)_L \otimes U(1)_N$ model for the electroweak interactions | Assuming the existence of right-handed neutrinos, we consider an electroweak
model based on the gauge symmetry $SU(4)_L\otimes U(1)_N$. We study the neutral
currents coupled to all neutral vector bosons present in the theory. There are
no flavor changing neutral currents at tree level, coupled with the lightest
neutral... | 1994-01-17 | 2009-10-28 | [
"hep-ph"
] | F. Pisano and V. Pleitez |
hep-ph/9401266 | Production of Jet Pairs at Large Relative Rapidity in Hadron-Hadron
Collisions as a Probe of the Perturbative Pomeron | The production of jet pairs with small transverse momentum and large relative
rapidity in high energy hadron-hadron collisions is studied. The rise of the
parton-level cross section with increasing rapidity gap is a fundamental
prediction of the BFKL `perturbative pomeron' equation of Quantum
Chromodynamics. However, a... | 1994-01-17 | 2009-10-28 | [
"hep-ph"
] | W.J. Stirling |
hep-ph/9401271 | Possible constraints on SUSY-model Parameters from Direct Dark Matter
Search | We consider the SUSY-model neutralino as a dominant Dark Matter particle in
the galactic halo and investigate some general issues of direct DM searches via
elastic neutralino-nucleus scattering.
On the basis of conventional assumptions about the nuclear and nucleon
structure, without referring to a specific SUSY-mode... | 1994-01-17 | 2009-10-28 | [
"hep-ph",
"astro-ph"
] | V.A. Bednyakov, H.V. Klapdor-Kleingrothaus, S.G. Kovalenko |
hep-ph/9401275 | Neutrino Phenomenology from Unconventional E$_6$ models | Superstring derived $\E$ models can accommodate small neutrino masses if a
discrete symmetry is imposed which forbids tree level Dirac neutrino masses but
allows for radiative mass generation. The only possible symmetries of this kind
are known to be generation dependent. We explore the possibility that, as a
consequen... | 1994-01-17 | 2009-09-25 | [
"hep-ph"
] | Enrico Nardi |
hep-ph/9401268 | Effectively Semi-Relativistic Hamiltonians of Nonrelativistic Form | We construct effective Hamiltonians which despite their apparently
nonrelativistic form incorporate relativistic effects by involving parameters
which depend on the relevant momentum. For some potentials the corresponding
energy eigenvalues may be determined analytically. Applied to two-particle
bound states, it turns ... | 1994-01-17 | 2007-05-23 | [
"hep-ph",
"hep-th"
] | Wolfgang Lucha, Franz F. Sch\"oberl, Michael Moser |
hep-ph/9401273 | Long-Distance Contributions to the
$\Lambda_b\rightarrow\Lambda_ce^-\overline{\nu}_e$ Isgur-Wise Function | The six independent formfactors describing the weak decay \semi\ are
determined in terms of one universal function when both the $b$ and $c$ quarks
are treated as heavy. The relations between these formfactors are modified by
terms suppressed by inverse powers of the charm quark mass. We compute the
formally leading lo... | 1994-01-17 | 2011-07-19 | [
"hep-ph"
] | Martin J. Savage |
hep-ph/9401274 | General Analysis of Phases in Quark Mass Matrices | We give a detailed discussion of our general determination of (i) the number
of unremovable, physically meaningful phases in quark mass matrices and (ii)
which elements of these matrices can be rendered real by rephasings of fermion
fields. The results are applied to several currently viable models. New results
are pre... | 1994-01-17 | 2009-09-25 | [
"hep-ph"
] | A. Kusenko and R. Shrock |
hep-ph/9401264 | Polarized deep inelastic scattering at high energies and parity
violating structure functions | A comprehensive analysis of deep inelastic scattering of polarized charged
leptons on polarized nucleons is presented; weak interaction contributions,
both in neutral and charged current processes, are taken into account and the
parity violating polarized nucleon structure functions are studied. Possible
ways of their ... | 1994-01-15 | 2009-10-28 | [
"hep-ph"
] | M. Anselmino, P. Gambino, and J. Kalinowski |
hep-ph/9401260 | Identifying Unconventional E$_{\bf 6}$ Models at $e^+ e^-$ Colliders | Recently it was shown that, in the framework of superstring inspired $\E$
models, the presence of generation dependent discrete symmetries allows us to
construct a phenomenologically viable class of models in which the three
generations of fermions do not have the same embedding within the fundamental
{\bf 27} dimensio... | 1994-01-15 | 2009-10-28 | [
"hep-ph"
] | Enrico Nardi and Thomas G. Rizzo |
hep-ph/9401263 | Tests of isospin symmetry breaking at $\phi (1020)$ meson factories | In a model of isospin symmetry breaking we obtain the ($e^{-} e^{+}
\rightarrow \pi^{-} \pi^{+}$) amplitude $Q$ and the isospin $I=0$ and $I=1$
relative phase $\psi$ at the $\phi (1020)$ resonance in aproximate agreement
with experiment. The model predicts $\Gamma(\phi \rightarrow \omega \pi^{0})
\approx 4 \cdot 10^{-4... | 1994-01-15 | 2009-10-28 | [
"hep-ph"
] | H. Genz and S. Tatur |
hep-ph/9401261 | Ground State Properties and Glueball Spectrum in SU(2) Yang-Mills Theory
using Gauge Invariant Variables | We describe a nonperturbative calculation of the spectrum of SU(2) Yang-Mills
theory based on a Hamiltonian formulation. Our approach exploits gauge
invariant variables similar to those used in nuclear physics to describe
collective motion in nuclei. | 1994-01-15 | 2009-10-28 | [
"hep-ph"
] | C. Martin and D. Vautherin |
hep-ph/9401262 | On SUSY Dark Matter Detection with Spinless Nuclei | We investigate the role of nuclear spin in elastic scattering of Dark Matter
(DM) neutralinos from nuclei in the framework of the Minimal SUSY standard
model (MSSM). The relative contribution of spin-dependent axial-vector and
spin-independent scalar interactions to the event rate in a DM detector has
been analyzed for... | 1994-01-15 | 2009-12-30 | [
"hep-ph",
"astro-ph"
] | V.A. Bednyakov, H.V. Klapdor-Kleingrothaus, S.G. Kovalenko |
hep-ph/9401258 | Automatic Generation of Tree Level Helicity Amplitudes | The program MadGraph is presented which automatically generates postscript
Feynman diagrams and Fortran code to calculate arbitrary tree level helicity
amplitudes by calling HELAS[1] subroutines. The program is written in Fortran
and is available in Unix and VMS versions. MadGraph currently includes standard
model inte... | 1994-01-14 | 2009-10-28 | [
"hep-ph"
] | T. Stelzer and W. F. Long |
hep-ph/9401259 | Decays of a fermiophobic Higgs | We explore the phenomenology of a fermiophobic Higgs: a Higgs whose couplings
to fermions are suppressed. We calculate the branching ratios of a Higgs
decaying to $\gamma\gamma$, $W^*W^*$, $Z^*Z^*$, $Zb\bar b$, $Z\gamma$, $\gamma
b\bar b$, and final states involving vector mesons like $\Upsilon$, $J/\Psi$
and $\rho$. I... | 1994-01-14 | 2009-09-25 | [
"hep-ph"
] | Marco A. Diaz and Thomas J. Weiler |
hep-ph/9401253 | A phenomenological Theory of Fermion Masses and Mixings | A phenomenological theory of fermion masses and mixings is constructed within
the framework of a four- family symmetry. It is found that the most favored set
of relevant CKM elements are $|V_{us}|\approx 0.222$, $|V_{cb}|\approx 0.044$,
$|V_{ub}/V_{cb}|\approx 0.082$, $|V_{ud}|\approx 0.974$, $|V_{cs}|\approx
0.9736$, ... | 1994-01-14 | 2010-11-01 | [
"hep-ph"
] | P. Q. Hung |
hep-ph/9401252 | A new Method for Computing One-Loop Integrals | We present a new program package for calculating one-loop Feynman integrals,
based on a new method avoiding Feynman parametrization and the contraction due
to Passarino and Veltman. The package is calculating one-, two- and three-point
functions both algebraically and numerically to all tensor cases. This program
is wr... | 1994-01-14 | 2011-04-20 | [
"hep-ph"
] | L. Br\"ucher, J. Franzkowski, D. Kreimer |
hep-ph/9401255 | A Parton Model for Inclusive Semileptonic B Meson Decays | The parton model for semileptonic B meson decays is studied with special
attention to the decay distributions. We find that the spectra show dramatic
variations when we introduce cuts on the hadronic energy or invariant mass of
hadrons. Results for both $b\rightarrow u$ and $b\rightarrow c$ decays are
presented. The de... | 1994-01-14 | 2010-11-01 | [
"hep-ph"
] | C.H.Jin, W.F.Palmer, E.A.Paschos |
hep-ph/9401249 | Calculating Fragmentation Functions from Definitions | Fragmentation functions for hadrons composed of heavy quarks are calculated
directly from the definitions given by Collins and Soper and are compared with
those calculated in another way. A new fragmentaion function for a P-wave meson
is also obtained and the singularity arising at the leading order is discussed. | 1994-01-14 | 2010-11-01 | [
"hep-ph"
] | J.P. Ma |
hep-ph/9401256 | Systematics of Exclusive B-decays | Systematic analysis of the high recoil decay channels of the B-meson, two
body mesonic decay channels in particular. For decays involving D-mesons, all
experimentally observed rates are in reasonable accord with our calculations.
Noticeable corrections to heavy quark symmetry are found, appearing most
prominently when ... | 1994-01-14 | 2010-11-01 | [
"hep-ph"
] | C.E. Carlson and J.Milana |
hep-ph/9401254 | The b -> s gamma decay revisited | In this work we compute the leading logarithmic corrections to the b -> s
gamma decay in a dimensional scheme which does not require any definition of
the gamma5 matrix. The scheme does not exhibit unconsistencies and it is
therefore a viable alternative to the t'Hooft Veltman scheme, particularly in
view of the next-t... | 1994-01-14 | 2009-10-28 | [
"hep-ph"
] | G. Cella, G. Curci, G. Ricciardi, A. Vicere' |
hep-ph/9401251 | Radiative Lepton Masses with Heavy Lepton Seed | We construct a $Z_8$ model for leptons where all Yukawa couplings are of
order unity, but known lepton masses are generated radiatively, {\it order by
order}. The seed is provided by fourth generation leptons $E$ and $N$, which
receive (Dirac) mass in usual way. Two additional Higgs doublets with
nontrivial $Z_8$ charg... | 1994-01-14 | 2009-09-25 | [
"hep-ph"
] | Gwo-Guang Wong and Wei-Shu Hou |
hep-ph/9401246 | Phenomenological Constraints on $\bar\Lambda$ and $\lambda_1$ | Combining the experimental data on the inclusive decays $D\to X\,e\,\nu$,
$B\to X\,e\,\nu$ and $B\to X\,\tau\,\nu$, we find severe constraints on the
$\bar\Lambda$ and $\lambda_1$ parameters of the Heavy Quark Effective Theory.
In particular, we get $\bar\Lambda<0.7\,$GeV. Our constraints further imply
$m_c\geq1.43\,$G... | 1994-01-13 | 2009-12-30 | [
"hep-ph"
] | Zoltan Ligeti and Yosef Nir |
hep-ph/9401247 | Cosmic Strings at the Electroweak Phase Transition | If cosmic strings are present at the electroweak phase transition, they can
act as seeds on which bubbles of true vacuum nucleate. We explore the nature of
such a phase transition, in particular the wall velocity and thickness of the
bubbles. {}From the viewpoint of electroweak baryogenesis, adiabatic conditions
exist ... | 1994-01-13 | 2015-06-25 | [
"hep-ph"
] | Susmita Bhowmik Duari and U. A. Yajnik |
hep-ph/9401250 | Model for a Light Z' Boson | A model of a light $Z'$ boson is constructed and phenomenological bounds are
derived. This $Z'$ boson arises from a very simple extension to the Standard
Model, and it is constrained to be light because the vacuum expectation values
which generate its mass also break the electroweak gauge group. It is difficult
to dete... | 1994-01-13 | 2009-10-28 | [
"hep-ph"
] | R. Foot, X.-G. He, H. Lew and R. R. Volkas |
hep-ph/9401245 | Kaon-Nucleon Scattering from Chiral Lagrangians | The s-wave $K^{\pm}N$ scattering amplitude is computed up to one-loop order
corresponding to next-to-next-to-leading order (or N$^2$LO in short) with a
heavy-baryon effective chiral Lagrangian. Constraining the low-energy constants
by on-shell scattering lengths, we obtain contributions of each chiral order up
to N$^2$... | 1994-01-13 | 2009-10-28 | [
"hep-ph",
"nucl-th"
] | Chang-Hwan Lee, Hong Jung, Dong-Pil Min and Mannque Rho |
hep-ph/9401248 | LEP Electroweak Physics | This is an overview of the electroweak physics achieved at LEP. After a brief
review of the standard model and the calculation of the radiative corrections
both in the MS and on-shell schemes, we introduce the Z decay parameters around
the resonance energy and discuss the status of the standard model fits for
them, alo... | 1994-01-13 | 2007-05-23 | [
"hep-ph"
] | Kyungsik Kang |
hep-ph/9401238 | Unification of couplings and soft supersymmetry breaking terms in 4D
superstring models | We consider the predictions for the hierarchy of mass scales, the fine
structure constant, the radii of compactification and the soft SUSY breaking
terms which follow if SUSY breaking is triggered by a gaugino condensate. | 1994-01-12 | 2009-10-28 | [
"hep-ph"
] | A. de la Macorra and G.G. Ross |
hep-ph/9401240 | Phenomenological implications from moduli fields in strings | We study some phenomenological consequences of having moduli fields with
large vacuum expectation values (v.e.v.). The v.e.vs of the moduli are
dynamically determined once supersymmetry is broken in 4D string theories. The
study constraints the possible Yukawa interactions and modular weights for
matter fields. | 1994-01-12 | 2009-10-28 | [
"hep-ph"
] | A. de la Macorra |
hep-ph/9401239 | Unification Scale in String Theory | We study the unification scale and gauge coupling constant in 4D string
theory. We show that the fine structure constant is determined by the dimension
of the hidden gauge group and only $SU(6)$ and $SO(9)$ are consistent with
minimal string unification while the unification scale can be of order of
$10^{16}\,GeV$. | 1994-01-12 | 2009-10-28 | [
"hep-ph"
] | A. de la Macorra |
hep-ph/9401257 | Instanton - like transitions at high energies in (1+1) dimensional
scalar models. II.Classically allowed induced vacuum decay | We consider classical Minkowskian solutions to the field equation in the
(1+1) dimensional scalar model with the exponential interaction that describe
the unsuppressed false vacuum decay induced by $n$ initial particles. We find
that there is a critical value of $n$ below which there are no such solutions,
i.e., the va... | 1994-01-12 | 2010-11-01 | [
"hep-ph"
] | V.A.Rubakov and D.T.Son |
hep-ph/9401242 | Searching a doubly charged Higgs boson at Hera | The production of a single exotic Higgs particle is studied at Hera. Within
the present limits on the Yukawa couplings this doubly charged particle,
suggested by the left-right symmetric models, can be observed at Hera up to
values of its mass of about 150 GeV. | 1994-01-12 | 2009-10-28 | [
"hep-ph"
] | Elena Accomando and Silvano Petrarca |
hep-ph/9401241 | Two-loop renormalization group equations for soft SUSY breaking scalar
interactions: supergraph method | We obtain the one- and two-loop renormalization group equations for soft SUSY
breaking scalar interactions in general, semi-simple SUSY gauge model, by using
the supergraph method. We find that the method simplifies the calculation
significantly because of the non-renormalization theorem and also because of
the propert... | 1994-01-12 | 2009-10-28 | [
"hep-ph"
] | Youichi Yamada |
hep-ph/9401243 | Observations Concerning the Magnitude of t \bar{t} Threshold Effects on
Electroweak Parameters | We discuss a recent analysis of $t\bar{t}$ threshold effects and its
implications for the determination of electroweak parameters. We show that the
new formulation, when applied to the $\rho$ parameter for $m_t\approx158$~GeV,
gives a result of similar magnitude to those previously obtained. In fact, it
is quite close ... | 1994-01-12 | 2009-10-28 | [
"hep-ph"
] | Bernd A. Kniehl, Alberto Sirlin |
hep-ph/9401244 | Evidence for a Hard Pomeron in Perturbative QCD | The $t$-channel exchange of two gluons in a color singlet state represents
the lowest order approximation to the Pomeron. This exchange mechanism is
thought to also explain the formation of rapidity gaps in dijet events at the
Tevatron. At the perturbative level this requires suppressed gluon emission in
the rapidity i... | 1994-01-12 | 2009-09-25 | [
"hep-ph"
] | H.N.Chehime and D.Zeppenfeld |
hep-ph/9401232 | Baryon Masses at Second Order in Chiral Perturbation Theory | We analyze the baryon mass differences up to second order in chiral
perturbation theory, including the effects of decuplet intermediate states. We
show that the Coleman--Glashow relation has computable corrections of order
$(m_d - m_u) m_s$. These corrections are numerically small, and in agreement
with the data. We al... | 1994-01-11 | 2009-10-28 | [
"hep-ph"
] | Richard F. Lebed and Markus A. Luty |
hep-ph/9401237 | Proton-Proton Near-Forward Hard Elastic Scattering | We calculate the leading twist contribution to near-forward proton-proton
(and proton-antiproton) elastic scattering with large momentum transfer, in the
multiple scattering (Landshoff) mechanism. The amplitude in the near-forward
region is dominated by singlet exchange for all three valence quark-quark
scatterings. We... | 1994-01-11 | 2014-11-17 | [
"hep-ph"
] | Michael G. Sotiropoulos and George Sterman |
hep-ph/9401234 | Baryogenesis from a Primordial Lepton Asymmetry | We examine the generation of baryon asymmetry at the weak scale from a
primordial lepton asymmetry. If the electroweak phase transition is first
order, partial reflection of tau leptons off the bubble walls and the resulting
hypercharge transport into the symmetric phase, gives rise to a baryon number
consistent with o... | 1994-01-11 | 2009-10-28 | [
"hep-ph"
] | S.A.Abel and K.E.C.Benson |
hep-ph/9401233 | Finite size vertex corrections to the three-gluon decay widths of
$J/\psi$ and $\Upsilon$ and a redetermination of $\alpha_s(\mu)$ at $\mu=m_c$
and $m_b$ | We calculate the corrections to the three-gluon decay widths $\Gamma_{3g}$ of
$c\bar c$ and $b \bar b$ quarkonia due to the finite extension of the $Q\bar
Q\to 3g$ vertex function. The widths computed with zero range vertex are
reduced by a factor $\gamma$ where $\gamma=0.31$ for the $J/\psi$ and
$\gamma=0.69$ for the ... | 1994-01-11 | 2009-10-28 | [
"hep-ph"
] | H.C. Chiang, J. H\"ufner and H.J. Pirner |
hep-ph/9401235 | Effective Field Theory of Multiparticle Correlations | We present an effective field theory of multiparticle correlations based on
analogy with Ginzburg-Landau theory of superconductivity. We assume that the
field represents particle density fluctuations, and show that in the case of
gaussian-type effective action there are no higher-order correlations, in
agreement with t... | 1994-01-11 | 2008-02-03 | [
"hep-ph"
] | I. Sarcevic, H. C. Eggers and H. Th. Elze |
hep-ph/9401236 | Multiscale Technicolor and Top Production | Pair-production of heavy top quarks at the Tevatron Collider is significantly
enhanced by the color--octet technipion, $\eta_T$, occurring in multiscale
models of walking technicolor. We discuss $\bar tt$ rates for $m_t = 170$ GeV
and $M_{\eta_T} = 400-500$ GeV. Multiscale models also have color--octet
technirho states... | 1994-01-11 | 2009-10-28 | [
"hep-ph"
] | Estia Eichten and Kenneth Lane |
hep-ph/9401231 | Tumbling and Technicolor Theory | The extended technicolor theory is a candidate of the physics beyond the
standard model. To explain the mass hierarchy of the quarks and leptons, the
extended technicolor gauge symmetry must hierarchically break to the
technicolor gauge symmetry. Tumbling gauge theory is considered as a candidate
of the dynamics of suc... | 1994-01-11 | 2007-05-23 | [
"hep-ph"
] | Noriaki Kitazawa |
hep-ph/9401229 | Rare Decays of Z-boson | We study radiative decay modes of the Z-boson into heavy quark bound states.
We find that the widths for these decays are extremely small. We conclude that
these decays will not be detectable for the time being unless there is a
significant increase in the number of Z-bosons produced at the electron-
positron colliders... | 1994-01-10 | 2009-09-25 | [
"hep-ph"
] | Jamal Jalilian-Marian |
hep-ph/9401227 | The Top Mass Upper Bound and Electroweak Radiative Corrections | We investigated the possibility of introducing sizeable negative corrections
to the $\varepsilon_{N1}$ ($\delta \rho$) parameter without affecting
$\varepsilon_{N3}$. We have found that a proper vector-like family of fermions
can imply such corrections. Differently from supersymmetry \cite{bcf}, this can
be realized wi... | 1994-01-10 | 2011-01-25 | [
"hep-ph"
] | F. Caravaglios |
hep-ph/9401230 | Pion scattering and the skyrmion in ChPT with many pions | The large N effective action of the non-linear sigma model based in the coset
O(N+1)/O(N) is obtained. The renormalization of this effective action requires
the introduction of an infinite set of counterterms. However, there exit
particular cases where, at some scale, only a finite number of non-zero
coupling constants... | 1994-01-10 | 2009-09-25 | [
"hep-ph"
] | Antonio Dobado (Departament of Physics, Stanford University), Antonio
Lopez (Dept. Fisica Teorica, Univ. Complutense de Madrid, 28040 Madrid,
Spain) and John Morales (Dept. Fisica Teorica, Univ. Autonoma de Madrid,
28049, Madrid, Spain) |
hep-ph/9401225 | The Instantaneous Approximation to the Transition Matrix Elements
between Two Bound States | Under the framework of the Bethe-Salpeter (B.S.) wave functions and the
Mandelstam formalism as well, to make ``instantaneous approximation'' to a
transition matrix element (a current operator sandwiched between two
bound-states of double heavy quarks) is described. By taking the typical
concerned decays as examples, s... | 1994-01-10 | 2011-07-19 | [
"hep-ph"
] | Chao-Hsi Chang and Yu-Qi Chen |
hep-ph/9401226 | Heavy Quark Expansion for the Inclusive Decay $\bar
B\to\tau\,\bar\nu\,X$ | We calculate the differential decay rate for inclusive $\bar
B\to\tau\,\bar\nu\,X$ transitions to order $1/m_b^2$ in the heavy quark
expansion, for both polarized and unpolarized tau leptons. We show that using a
systematic $1/m_b$ expansion significantly reduces the theoretical
uncertainties in the calculation. We obt... | 1994-01-10 | 2011-01-27 | [
"hep-ph"
] | Adam F. Falk, Zoltan Ligeti, Matthias Neubert and Yosef Nir |
hep-ph/9401228 | Lepton flavor changing processes and CP violation in the 331 model | By extending the electroweak gauge group to $SU(3)_L\times U(1)_Y$, the 331
model incorporates dilepton gauge bosons $Y$ which do not respect individual
lepton family number. We point out that, in addition to family diagonal
couplings such as $Y$--$e$--$e$ that change lepton family number by two units,
dileptons may al... | 1994-01-10 | 2010-11-01 | [
"hep-ph"
] | James T. Liu and Daniel Ng |
hep-ph/9401224 | Aspects of $\chi$ and $\psi$ Production in Polarized Proton-Proton
Collisions | Several topics of relevance to low transverse momentum $\psi$ and
$\chi_{1,2}(c\overline{c})$ production in polarized proton-proton collisions
are discussed. The leading ${\cal O}(\alpha_S^3)$ contributions to the low
$p_T$ $\chi_1$ production cross-sections via $gg$, $qg$, and $q\overline{q}$
initial states are calcul... | 1994-01-08 | 2011-07-19 | [
"hep-ph"
] | M. A. Doncheski and R. W. Robinett |
hep-ph/9401223 | The Vacuum Theta-Angle is Zero in Non-Abelian Gauge Theories | We argue that gauge transformations with arbitrary fractional winding numbers
should be allowed in a non-Abelian gauge theory. This eliminates the
topological distinction between large and small gauge transformations. We prove
that the states which satisfy the Gauss's law constraint are strictly invariant
under gauge t... | 1994-01-08 | 2009-10-28 | [
"hep-ph",
"hep-th"
] | Valentin V. Khoze |
hep-ph/9401221 | The Higher Derivative Expansion of the Effective Action by the
String-Inspired Method, Part I | The higher derivative expansion of the one-loop effective action for an
external scalar potential is calculated to order O(T**7), using the
string-inspired Bern-Kosower method in the first quantized path integral
formulation. Comparisons are made with standard heat kernel calculations and
with the corresponding Feynman... | 1994-01-07 | 2011-07-19 | [
"hep-ph"
] | D. Fliegner, M. G. Schmidt and C. Schubert |
hep-ph/9401218 | The Dilated Chiral Quark Model | It is argued that constituent quarks live in an effective theory that
possesses an approximate conformal invariance. An effective lagrangian is
constructed which in the large-$\nc$ approximation incorporates Regge
asymptotic constraints. The resulting picture explains why linear-sigma models
provide successful constitu... | 1994-01-07 | 2009-10-28 | [
"hep-ph"
] | S.R. Beane and U. van Kolck |
hep-ph/9401220 | Electroweak String Configurations with Baryon Number | In the context of electroweak strings, the baryon number anomaly equation may
be reinterpreted as a conservation law for baryon number minus helicity. Since
the helicity is a sum of the link and twist numbers, linked or twisted loops of
electroweak string carry baryon number. We evaluate the change in the baryon
number... | 1994-01-07 | 2009-09-25 | [
"hep-ph"
] | Tanmay Vachaspati and George B. Field |
hep-ph/9401219 | Two-Loop Radiative Corrections to the Lightest Higgs Boson Mass in the
Minimal Supersymmetric Model | In the minimal supersymmetric model (MSSM), the upper limit of the lightest
Higgs boson mass, $\mhl$, depends strongly on the top quark mass, $m_t$. We
have computed the dominant two-loop radiative corrections to this upper limit
of $\mhl$ in order to eliminate large uncertainties due to QCD and $m_t^6$
corrections. It... | 1994-01-07 | 2009-10-28 | [
"hep-ph"
] | Ralf Hempfling and Andre H. Hoang |
hep-ph/9401222 | Intermittency in soft hadronic processes and Zip-model | A low constituent number scheme based on the nontrivial gluon string
splitting (the Zip--model) is shown to yield a substantial intermittency for
soft hadronic processes. With a simplest addition of the Bose--Einstein
correlations the remarkable agreement with the NA22 experimental data on
rapidity factorial moments is... | 1994-01-07 | 2009-09-25 | [
"hep-ph"
] | E.G.Gurvich, G.G.Leptoukh and E.K.Sarkisyan |
hep-ph/9401216 | Baryons in Effective Chiral Quark Models with Polarized Dirac Sea | We give a comprehensive review of concepts and numerical calculations for
SU(2) and SU(3) baryonic systems which are considered as many body systems
composed of three quarks coupled to a polarized Dirac sea by a
Nambu--Jona-Lasinio like interaction. The general formalism as well as the
construction and numerical soluti... | 1994-01-06 | 2007-05-23 | [
"hep-ph",
"nucl-th"
] | Th.Meissner, E.Ruiz Arriola, A.Blotz and K.Goeke |
hep-ph/9401215 | Decisive Search for a Diquark-Antidiquark Meson with Hidden Strangeness | Diquark-antidiquark states are expected to exist as a natural complement of
mesons and baryons. Although they were predicted long ago, and some candidates
were found experimentally, none has, as yet, been reliably identified. We
suggest that the search for the so-called $C(1480)$-meson in reactions such as
photoproduct... | 1994-01-06 | 2009-10-28 | [
"hep-ph"
] | Boris Z. Kopeliovich and Enrico Predazzi |
hep-ph/9401217 | Photoproduction of Very Light Gluinos | Current experiments allow the possibility of gluino masses below about 600
MeV if the lifetime of the gluino is longer than 100 picoseconds. If the mass
and lifetime are in this window, then photoproduction of pairs of gluino-gluon
bound states can provide a means to observe them. The cross section is large
enough that... | 1994-01-06 | 2009-10-28 | [
"hep-ph"
] | Carl Carlson and Marc Sher |
hep-ph/9401214 | Anomalous Dimension of Non-Singlet Wilson Operators at O(1/N_f) in Deep
Inelastic Scattering | We use the large N_f self consistency formalism to compute the $O(1/N_f)$
critical exponent corresponding to the renormalization of the flavour
non-singlet twist two Wilson operators which arise in the operator product
expansion of currents in deep inelastic processes. Expanding the
$d$-dimensional expression in powers... | 1994-01-06 | 2009-10-28 | [
"hep-ph"
] | J.A. Gracey |
hep-ph/9401212 | $\rho$ Parameter in the Vector Condensate Model of Electroweak
Interactions | In the standard model of electroweak interactions the Higgs doublet is
replaced by a doublet of vector bosons and the gauge symmetry is broken
dynamically. This generates masses for the gauge bosons and fermions, as well
as it fixes the interactions in the model. The model has a low momentum scale.
In this note we show... | 1994-01-06 | 2015-06-25 | [
"hep-ph"
] | G. Cynolter, E. Lendvai and G. P\'ocsik |
hep-ph/9401213 | A New Method to Predict Meson Masses | The Feynman--Hellmann theorem is used to show that vector meson energy
eigenvalues are monotonically decreasing functions of the reduced masses of
their constituent quarks. The experimental meson masses are used to put
constraints on the values of quark masses and to predict the masses of some as
yet undiscovered meson... | 1994-01-06 | 2009-09-25 | [
"hep-ph"
] | R. Roncaglia, A. R. Dzierba, D. B. Lichtenberg, and E. Predazzi |
hep-ph/9401210 | Non-Abelian Excitations of the Quark-Gluon Plasma | We present new, non-abelian, solutions to the equations of motion which
describe the collective excitations of a quark-gluon plasma at high
temperature. These solutions correspond to spatially uniform color
oscillations. | 1994-01-05 | 2009-10-28 | [
"hep-ph"
] | Jean-Paul Blaizot and Edmond Iancu |
hep-ph/9401209 | Heavy Quark Solitons: Strangeness and Symmetry Breaking | We discuss the generalization of the Callan-Klebanov model to the case of
heavy quark baryons. The light flavor group is considered to be $SU(3)$ and the
limit of heavy spin symmetry is taken. The presence of the Wess-Zumino-Witten
term permits the neat development of a picture , at the collective level, of a
light diq... | 1994-01-05 | 2008-11-26 | [
"hep-ph"
] | Arshad Momen, Joseph Schechter and Anand Subbaraman |
hep-ph/9401211 | Energy-Momentum Tensors for the Quark-Gluon Plasma | We construct the energy-momentum tensor for the gauge fields which describe
the collective excitations of the quark-gluon plasma. We rely on the
description of the collective modes that we have derived in previous works. By
using the conservation laws for energy and momentum, we obtain three different
versions for the ... | 1994-01-05 | 2011-07-19 | [
"hep-ph"
] | Jean-Paul Blaizot and Edmond Iancu |
hep-ph/9401208 | Protecting the Primordial Baryon Asymmetry From Erasure by Sphalerons | If the baryon asymmetry of the universe was created at the GUT scale,
sphalerons together with exotic sources of $(B-L)$-violation could have erased
it, unless the latter satisfy stringent bounds. We elaborate on how the small
Yukawa coupling of the electron drastically weakens previous estimates of these
bounds. | 1994-01-05 | 2009-09-25 | [
"hep-ph"
] | James M. Cline, Kimmo Kainulainen and Keith A. Olive |
hep-ph/9401207 | Hyperons in the bound state approach with vector mesons | We investigate a model for hyperons based on the bound state approach in
which vector mesons are explicitly incorporated. We show that for empirical
values of the mesonic parameters the strange hyperon spectrum is well
reproduced. We also discuss the extension of the model to heavier flavors. We
show that the explicit ... | 1994-01-04 | 2009-09-25 | [
"hep-ph"
] | C.L. Schat and N.N. Scoccola |
hep-ph/9401206 | Low-Energy Photon-Photon Collisions to Two-Loop Order | We evaluate the amplitude for $\gamma \gamma \rightarrow \pi^0 \pi^0$ to two
loops in chiral perturbation theory. The three new counterterms which enter at
this order in the low-energy expansion are estimated with resonance saturation.
We find that the cross section agrees rather well with the available data and
with d... | 1994-01-04 | 2011-07-19 | [
"hep-ph"
] | S. Bellucci, J. Gasser and M.E. Sainio |
hep-ph/9401202 | On the Equivalence Theorem in the $\chi PT$ Description of the Symmetry
Breaking Sector of the Standard Model | We develop an alternative formulation of the symmetry breaking sector of the
Standard Model as a gauged non-linear sigma model (NLSM) following the
philosophy of the Chiral lagrangian approach, which is the only compatible with
all the experimental and theoretical constraints. We derive the BRS symmetry of
the model an... | 1994-01-03 | 2016-08-14 | [
"hep-ph"
] | A. Dobado, J.R. Pelaez (Departamento de F\'isica Te\'orica,
Universidad Complutense, Madrid, Spain) |
hep-ph/9401201 | Nonstandard Quartic Self Interactions of Electroweak Vector Bosons
within a Gauge Invariant Higher-Derivative Term | A locally SU(2)xU(1)-invariant term of dimension six with effective
interactions of the electroweak gauge and Higgs fields is examined. This term
also contains higher derivatives of the fields. It yields nonstandard quartic
gauge-boson self-interactions but neither nonstandard cubic self-interactions
nor tree-level eff... | 1994-01-03 | 2007-05-23 | [
"hep-ph"
] | Carsten Grosse-Knetter (Universitaet Bielefeld) |
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