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/9309226 | Higgs Sector Motivations for an e-minus e-minus Linear Collider | I briefly review the crucial role an $\emem$ linear collider could play in
unravelling the nature of a non-minimal Higgs sector and/or
strongly-interacting $WW$ sector. | 1993-09-04 | 2007-05-23 | [
"hep-ph"
] | J.F. Gunion |
hep-ph/9309218 | On the Neutralino as Dark Matter Candidate - I. Relic Abundance | The neutralino relic abundance is evaluated for a wide range of the
neutralino mass, ${\rm 20\ GeV} \leq m_\chi \leq {\rm 1\ TeV}$, by taking into
account the full set of final states in the neutralino-neutralino annihilation.
The analysis is performed in the Minimal SuSy Standard Model; it is not
restricted by stringe... | 1993-09-03 | 2011-05-23 | [
"hep-ph"
] | A. Bottino, V. de Alfaro, N. Fornengo, G. Mignola, M. Pignone |
hep-ph/9309223 | Renormalization of the Neutrino Mass Operator | A small neutrino Majorana mass can arise in the Standard Model as an
effective dimension 5 operator. We calculate the renormalization of this
operator in the minimal Standard Model and in its two-Higgs-doublet and
supersymmetric extensions. Renormalization from the scale of lepton number
violation (e.g., the Planck sca... | 1993-09-03 | 2008-11-26 | [
"hep-ph"
] | K.S. Babu, C.N. Leung, J. Pantaleone |
hep-ph/9309220 | Vector and Scalar Meson Resonances in $K\rightarrow\pi\pi\pi$ Decays | Corrections to $K\rightarrow\pi\pi\pi$ induced by vector and scalar meson
exchange are investigated within chiral perturbation theory. | 1993-09-03 | 2009-10-22 | [
"hep-ph"
] | S.Fajfer |
hep-ph/9309225 | Damping Rate of a Fermion in a Medium | We examine the relation between the damping rate of a massless, chiral
fermion that propagates in a medium, and the rate $\Gamma$ of approach to
equilibrium. It is proven that these quantities are equal, by showing that they
are given by the same formula in terms of the imaginary part of the self-energy
evaluated at th... | 1993-09-03 | 2008-11-26 | [
"hep-ph"
] | J. C. D'Olivo and Jose F. Nieves |
hep-ph/9309217 | Instanton contributions to the $\tau$ decay widths | Contrary to some previous claims, we find a sizable instanton contribution to
the finite energy sum rule used to extract the value of the strong coupling
from the measured $\tau$ decay widths. It is of the same order of magnitude as
standard nonperturbative corrections induced by vacuum quark and gluon
condensates. Our... | 1993-09-03 | 2009-10-22 | [
"hep-ph"
] | I.I. Balitsky, M. Beneke and V.M. Braun |
hep-ph/9309219 | On the Neutralino as Dark Matter Candidate - II. Direct Detection | Evaluations of the event rates relevant to direct search for dark matter
neutralino are presented for a wide range of neutralino masses and for various
detector materials of preeminent interest. Differential and total rates are
appropriately weighted over the local neutralino density expected on
theoretical grounds. | 1993-09-03 | 2011-05-23 | [
"hep-ph"
] | A. Bottino, V. de Alfaro, N. Fornengo, G. Mignola, S. Scopel |
hep-ph/9309222 | Review of Z' Constraints | We review present Z' bounds, discuss future Z' constraints from TEVATRON,
HERA and LEP, and give a brief review of the Z' diagnostics at future
colliders. | 1993-09-03 | 2007-05-23 | [
"hep-ph"
] | F. del Aguila, M. Cvetic, and P. Langacker |
hep-ph/9309224 | Vertices and the CJT Effective Potential | The Cornwall-Jackiw-Tomboulis effective potential is modified to include a
functional dependence on the fermion-gauge particle vertex, and applied to a
quark confining model of chiral symmetry breaking. | 1993-09-03 | 2009-10-22 | [
"hep-ph"
] | Bijan Haeri Jr |
hep-ph/9309221 | Some consequences of the effective low-energy lagrangian for gravity | We consider the minimal low-energy action for gravity up to six derivatives
which is renormalizable at the two-loop level modulo higher derivative
corrections. Then we study the classical solutions corresponding to the
Schwarzschild and the Robertson-Walker metrics. In the first case we find a
singularity close to the ... | 1993-09-03 | 2008-11-26 | [
"hep-ph"
] | A. Dobado and A. Lopez ( Departamento de Fisica Teorica Universidad
Complutense de Madrid 28040 Madrid, Spain ) |
hep-ph/9309215 | Improving the Effective Potential, Multi-Mass Problem and Modified
Mass-Dependent Scheme | We present a new procedure for improving the effective potential by using
renormalization group equation (RGE) in the presence of several mass scales. We
propose a modification of the mass-dependent (MD) renormalization scheme, MDbar
scheme, so that the scalar mass parameter runs at most logarithmically on the
one hand... | 1993-09-02 | 2009-10-22 | [
"hep-ph"
] | Hiroaki Nakano and Yusuke Yoshida |
hep-ph/9309213 | Rapidity Distributions of Dileptons from a Hadronizing Quark-Gluon
Plasma | It has been predicted that dilepton production may be used as a quark-gluon
plasma probe. We calculate the rapidity distributions of thermal dileptons
produced by an evolving quark-gluon plasma assuming a longitudinal scaling
expansion with initial conditions locally determined from the hadronic rapidity
density. These... | 1993-09-02 | 2009-10-22 | [
"hep-ph",
"nucl-th"
] | R. Vogt, B. V. Jacak, P. L. McGaughey, and P. V. Ruuskanen |
hep-ph/9309214 | The KeV Majoron as Dark Matter Particle | We consider a very weakly interacting KeV majoron as dark matter particle
(DMP), which provides both the critical density $\rho_{cr} = 1.88 \times
10^{-29} h^{2}$ $g/cm^{3}$ and the galactic scale $M_{gal}$ $\sim
m^{3}_{Pl}/m^{2}_{J} \sim 10^{12} M_{\odot} (m_{J}/1 KeV)^{-2}$ for galaxy
formation. The majoron couples t... | 1993-09-02 | 2009-09-17 | [
"hep-ph"
] | V. Berezinsky and J. W. F. Valle |
hep-ph/9309212 | Probing $WW\gamma$ Couplings from $\sigma_{tot}(W)/\sigma_{tot}(Z)$ in
High Energy ep Collisions | We investigate the sensitivity of total cross sections of $e+p \rightarrow
W,Z$ to CP-conserving non-standard $WW\gamma$ couplings. We include all the
important production mechanisms and study the dependence of the total $W$ cross
sections on the anomalous $WW\gamma$ couplings, $\kappa$ and $\lambda$. We
argue that the... | 1993-09-02 | 2016-09-01 | [
"hep-ph"
] | C. S. Kim, Jungil Lee, and H. S. Song |
hep-ph/9309216 | Detecting an Invisibly Decaying Higgs Boson at a Hadron Supercollider | We demonstrate that an invisibly decaying Higgs boson with Standard Model
coupling strength to top--anti-top can be detected at the LHC for masses up to
about 250 GeV. | 1993-09-02 | 2009-10-22 | [
"hep-ph"
] | J.F. Gunion |
hep-ph/9308377 | Aspects of Neutralino Dark Matter | The possible solution of dark matter problem with neutralinos of
supersymmetric models within the supergravity framework is reviewed. A novel
correlation between the neutralino relic abundance $\Omega_\chi$ and the soft
supersymmetry breaking patterns is demonstrated. It is explained that, this
generic result together ... | 1993-09-01 | 2007-05-23 | [
"hep-ph",
"astro-ph"
] | Kajia Yuan |
hep-ph/9309204 | Two-Jet Hadroproduction as a Measure of the Gluon at Small X | We investigate the proposal of the CDF collaboration that same-side two-jet
production in $p\bar{p}$ collisions may be used to determine the gluon
distribution at small $x$. | 1993-09-01 | 2009-10-22 | [
"hep-ph"
] | A.D. Martin, W.J. Stirling and R.G. Roberts |
hep-ph/9309208 | On R-Parity Violation at $e^+ e^-$ Colliders | I discuss several promising $R$-parity violating processes at $e^+e^-$
colliders. | 1993-09-01 | 2007-05-23 | [
"hep-ph"
] | Leszek Roszkowski |
hep-ph/9309207 | Using `Invisible' Decay Modes as Probes of Z' Couplings | We explore the possibility that $Z'$ couplings can be probed using decay
modes which involve neutrinos once Standard Model backgrounds are directly
determined by the data itself. For some models, sufficient statistics are
available at either the SSC or LHC to render these modes useful for coupling
determinations, provi... | 1993-09-01 | 2009-09-25 | [
"hep-ph"
] | J.L. Hewett and T.G. Rizzo |
hep-ph/9309203 | An Analytic Formula and an Upper Bound for epsilon'/epsilon in the
Standard Model | Using the idea of the penguin box expansion we find an analytic expression
for epsilon'/epsilon in the Standard Model as a function of m_t, m_s(m_c) and
two non-perturbative parameters B_6 and B_8. This formula includes
next-to-leading QCD/QED short distance effects calculated recently by means of
the operator product ... | 1993-09-01 | 2010-11-01 | [
"hep-ph"
] | Andrzej J. Buras (TU/Mpi Munich) and Markus E. Lautenbacher (TU
Munich) |
hep-ph/9309201 | Recent Progress in the Physics of Neutrino Mass | Invited lecture at Int. School on Particles and Cosmology, Baksan Valley,
1993 | 1993-09-01 | 2016-09-01 | [
"hep-ph"
] | Jose W. F. Valle |
hep-ph/9309211 | Consistent Calculation of the Nucleon Electromagnetic Polarizabilities
in Chiral Perturbation Theory Beyond Next-to-Leading Order | We calculate the nucleons' electromagnetic polarizabilities in heavy baryon
chiral perturbation theory including all terms to order ${\cal O} (q^4)$. The
chiral prediction of the electric polarizabilities for the neutron and the
proton are in good agreement with the data. In the case of the magnetic
polarizabilities th... | 1993-09-01 | 2016-08-14 | [
"hep-ph",
"nucl-th"
] | V\'eronique Bernard, Norbert Kaiser, Armin Schmidt and Ulf-G.
Mei{\ss}ner |
hep-ph/9309206 | The $SU(2)$ Global Anomaly Through Level Circling | We discuss a novel manifestation of the $SU(2)$ global anomaly in an $SU(2)$
gauge theory with an odd number of chiral quark doublets and arbitrary Yukawa
couplings. We argue that the massive 4-dim.($D=4$) Euclidean Dirac operator is
nonhermitean with its spectrum of eigenvalues $(\lambda,-\lambda)$ lying in
pairs in t... | 1993-09-01 | 2009-10-22 | [
"hep-ph"
] | Minos Axenides, A. Johansen and H.B. Nielsen |
hep-ph/9309205 | Partial wave amplitudes and multiparticle production | Recursion relations for integrals of amplitudes over the phase space, i.e.
for partial wave amplitudes, are introduced. In their simplest form these
integrals are proportional to the s-wave amplitudes and represent rigorous
lower bounds on the total cross sections. The connection with classical field
equations in $D$ d... | 1993-09-01 | 2009-10-22 | [
"hep-ph"
] | Costas G. Papadopoulos |
hep-ph/9309202 | CP-Violation in Bosonic Sector of SM with two Higgs Doublets | We investigate CP-violation effects in the bosonic sector of the Standard
Model (SM) with two Higgs doublets. First we calculate the mass eigenstates of
the physical neutral Higgses for small but nonzero CP-violation parameter
$\xi_{\ast}$, and then a ``forward-backward'' asymmetry ${\cal A}_{fb}$ for the
decay $H \to ... | 1993-09-01 | 2010-11-01 | [
"hep-ph"
] | G. Cvetic |
hep-ph/9308378 | Beyond the Standard Model in Tau Decays | Invited talk at Second Workshop on JINR CTau Factory, Dubna, April 1993,
updated version of earlier review given at Second Workshop on Tau Lepton
Physics, Ohio, september 1992 | 1993-09-01 | 2016-09-01 | [
"hep-ph"
] | Jose W. F. Valle |
hep-ph/9309210 | Constraints on spin-3/2 and excited spin-1/2 fermions coming from the
leptonic Z0-partial width | We consider effective interactions among excited spin-1/2 and spin-3/2
leptons with the usual ones. Assuming that these new leptons are lighter than
the Z0 we will study the constraints on their masses and compositeness scale
coming from the leptonic Z0 partial width. | 1993-09-01 | 2009-10-22 | [
"hep-ph"
] | J. C. Montero and V. Pleitez |
hep-ph/9309209 | SUSY-GUT Higgs Probe at Future $e^+e^-$ Colliders | Several independent constraints on the minimal supersymmetric model with
constraints from grand unifications and cosmology select the region of
low-energy supersymmetry below ${\cal O}$(1~TeV). The resulting mass of the
lightest Higgs boson can probably be covered at LEP II only if its beam energy
exceeds 200~GeV, and ... | 1993-09-01 | 2007-05-23 | [
"hep-ph"
] | Leszek Roszkowski |
hep-ph/9308376 | Detecting Top Squarks at the Tevatron Collider | We study the signal from the pair production of $t$-squarks at the Tevatron
under the assumption that their two-body decay to charginos as well as their
three-body decay to $W$ bosons is kinematically forbidden. In this case, the
stop dominantly decays via $\widetilde{t_1}\rightarrow c\tz_1$, so that the
signal consist... | 1993-08-31 | 2007-05-23 | [
"hep-ph"
] | H. Baer, J. Sender and X. Tata |
hep-ph/9308365 | Gauge Coupling Unification: Strings versus SUSY-GUTs | Standard (level one) heterotic string models with standard model gauge group
predict the unification of $SU(3)$ and $SU(2)$ gauge couplings whereas the
$U(1)$ factor is unified modulo an unknown normalization factor $k_1$. On the
other hand the unification mass is known. I argue that this situation is quite
analogous (... | 1993-08-31 | 2009-10-22 | [
"hep-ph",
"hep-th"
] | Luis E. Ibanez |
hep-ph/9308368 | Charmonium Physics at a Tau-Charm Factory | This talk summarizes the status of the charmonium system, with particular
emphasis on outstanding problems in QCD spectroscopy which a tau-charm factory
can address. | 1993-08-31 | 2007-05-23 | [
"hep-ph"
] | T.Barnes |
hep-ph/9308364 | Radiatively-Induced First-Order Phase Transitions: The Necessity of the
Renormalization Group | We advocate a (Wilson) renormalization-group (RG) treatment of
finite-temperature first-order phase transitions, in particular those driven by
radiative corrections such as occur in the standard model, and other
spontaneously-broken gauge theories. We introduce the scale-dependent
coarse-grained free energy $S_\La[\phi... | 1993-08-31 | 2009-10-22 | [
"hep-ph"
] | Mark Alford and John March-Russell |
hep-ph/9308369 | Short-Distance Expansion of Heavy-Light Currents at Order 1/m | The short-distance expansion of the heavy-light currents $\bar q\,\gamma^\mu
Q$ and $\bar q\,\gamma^\mu\gamma_5\,Q$ is constructed to order $1/m_Q$, and to
next-to-leading order in renormalization-group improved perturbation theory. It
is shown that the $10\times 10$ anomalous dimension matrix, which describes the
scal... | 1993-08-31 | 2010-11-01 | [
"hep-ph"
] | Matthias Neubert |
hep-ph/9308370 | The Charm Content of W+1 Jet Events as a Probe of the Strange Quark
Distribution Function | We investigate the prospects for measuring the strange quark distribution
function of the proton in associated $W$ plus charm quark production at the
Tevatron. The $W+c$ quark signal produced by strange quark -- gluon fusion,
$sg\rightarrow W^-c$ and $\bar sg\rightarrow W^+\bar c$, is approximately 5\%
of the inclusive... | 1993-08-31 | 2009-10-22 | [
"hep-ph"
] | U. Baur, F. Halzen, S.Keller, M. L. Mangano, and K. Riesselmann |
hep-ph/9308375 | 14th International Workshop on Weak Interactions: Concluding Remarks | This superbly organized workshop invited the participants to focus on four
outstanding questions in weak interactions: i) is the electroweak model correct
at the quantum level? ii)supersymmetry? iii) neutrino mass? iv) what is the
nature of CP-violation? The meeting demonstrated how weak-interaction physics
has become ... | 1993-08-31 | 2007-05-23 | [
"hep-ph"
] | F.Halzen |
hep-ph/9308371 | Identification of Neutral B Mesons Using Correlated Hadrons | The identification of the flavor of a neutral $B$ meson can make use of
hadrons produced nearby in phase space. Examples include the decay of
``$B^{**}$'' resonances or the production of hadrons as a result of the
fragmentation process. Some aspects of this method are discussed, including
time-dependent effects in neut... | 1993-08-31 | 2010-11-01 | [
"hep-ph"
] | Michael Gronau (Department of Physics, Technion) and Jonathan L.
Rosner (Enrico Fermi Institute and Department of Physics, University of
Chicago) |
hep-ph/9308374 | Just How Strange? Loops, Poles and the Strangeness Radius of the Nucleon | We consider a simple model for the strangeness radius of the nucleon. The
model is based on vector meson dominance (VMD) and $\omega - \phi$ mixing in
addition to a kaon cloud contribution. We find that the VMD contribution is
similar in magnitude and of the same sign as the kaon contribution to the Sachs
strangeness r... | 1993-08-31 | 2009-10-22 | [
"hep-ph"
] | Thomas D. Cohen, Hilmar Forkel and Marina Nielsen |
hep-ph/9308366 | One Loop Calculation of the $\epsilon_3$ Parameter within the Extended
Bess Model | The existence of a strongly interacting sector responsible for the
electroweak symmetry breaking is assumed. As a consequence vector and
axial-vector bound states may be formed. These resonances mix with the Standard
Model gauge bosons and are of primary phenomenological importance for the LEP
physics. The extended BES... | 1993-08-31 | 2009-10-22 | [
"hep-ph"
] | R. Casalbuoni, S. De Curtis and M. Grazzini |
hep-ph/9308367 | Dynamical Symmetry Breaking In A Nambu-Jona-Lasinio Model And The Vacuum
Structure | The vacuum structure for a Nambu-Jona -Lasinio type model is studied using
the effective potential approach. The relevant degrees of freedom are taken to
be two different sets of static, auxiliary fields with different symmetry
properties, related by Fierz transformations in the action. The results are
compared with th... | 1993-08-31 | 2009-10-22 | [
"hep-ph"
] | E.A.Dudas |
hep-ph/9308373 | Astroparticle Physics with High Energy Neutrino Telescopes | The first optical modules of the Baikal high energy neutrino telescope have
recently been deployed. Commissioning of the AMANDA, DUMAND and NESTOR
detectors will follow soon. Before discussing the detectors we review the
arguments that pinpoint $0.1\rm~km^2$ as the natural scale of a neutrino
telescope. Though present ... | 1993-08-31 | 2007-05-23 | [
"hep-ph"
] | F.Halzen |
hep-ph/9308372 | Bottom Quark Cross Sections at Collider and Fixed-Target Energies at the
SSC and LHC | Calculations of inclusive cross sections for the production of bottom quarks
in proton-proton collisions are presented as a function of energy, transverse
momentum, and Feynman $x_F$ for values of $\sqrt{s}$ from $100~$GeV to
$40~$TeV. In addition, we provide simple parametrizations of our theoretical
results that shou... | 1993-08-31 | 2007-05-23 | [
"hep-ph"
] | Edmond L. Berger and Ruibin Meng |
hep-ph/9308362 | Nucleon Solution of the Faddeev Equation in the Nambu-Jona-Lasinio Model | Given the phenomenological success of the Nambu-Jona-Lasinio model in
describing the meson physics in the low energy limit, it is tempting to find
the fully relativistically structured nucleon solution in the same model under
the similar approximation employed in the mesonic sector. To achieve this goal
we need to solv... | 1993-08-30 | 2008-11-26 | [
"hep-ph",
"nucl-th"
] | Suzhou Huang (University of Washington) and John Tjon (University of
Utrecht) |
hep-ph/9308361 | Large N Relations Between Mass Matrix And Gauge Group In Electroweak
Gauge Extensions With Strong Coupling | The Large N expansion in gauge models with an NJL mechanism is discussed in
view of the resulting fermionic mass matrix. A hidden symmetry model is
introduced. | 1993-08-30 | 2008-02-03 | [
"hep-ph"
] | Ralf B\"onisch |
hep-ph/9308360 | Gauge-Boson Production in Electron-Photon Collisions | We summarize results for the processes $e^-\gamma \to \nu W^-, e^-Z,
e^-\gamma$ within the electroweak Standard Model. We discuss the essential
features of the corresponding lowest-order cross-sections and present numerical
results for the unpolarized cross-sections including the complete $O(\alpha)$
virtual, soft-phot... | 1993-08-30 | 2008-02-03 | [
"hep-ph"
] | A. Denner, S. Dittmaier |
hep-ph/9308363 | (S)quark Masses and Non-Abelian Horizontal Symmetries | We present a model of quark and squark masses which is based on a non-Abelian
horizontal symmetry. It leads to order of magnitude relations between quark
mass ratios and mixing angles and to the successful exact relation $\sin
\theta_C=\sqrt {m_d\over m_s}$ to better than $20\%$ accuracy. The non-Abelian
symmetry also ... | 1993-08-30 | 2009-09-15 | [
"hep-ph"
] | Philippe Pouliot and Nathan Seiberg |
hep-ph/9308357 | Unification of Couplings and the Top Quark Sector in the Minimal
Supersymmetric Standard Model | I analyze the predictions for the strong gauge coupling, $\alpha_3(M_Z) $,
and the top quark and light Higgs masses in the framework of gauge and
bottom-tau Yukawa coupling unification in the minimal supersymmetric standard
model. These predictions depend on the effective supersymmetric threshold scale
$T_{SUSY}$, whic... | 1993-08-29 | 2007-05-23 | [
"hep-ph"
] | M. Carena |
hep-ph/9308359 | Soft Gluon Radiation in Hadronic $t\bar t$ Production | We investigate soft gluon radiation in hadronic $t\bar t$ production. By
taking the top quark decay properly into account, we are able to study the
interplay of radiation both before and after the decay of the top quarks. The
production--decay and decay--decay radiative interferences depend sensitively
on the relative ... | 1993-08-29 | 2009-10-22 | [
"hep-ph"
] | V. A. Khoze, J. Ohnemus, and W. J. Stirling |
hep-ph/9308358 | Multiple Muons From Neutrino-Initiated Multi-W(Z) Production | Current underground detectors can search for multiple muons from multi-W(Z)
production initiated by ultrahigh energy neutrinos from active galactic nuclei.
O($\mu$b) cross sections give rise to downward going muon bundles whose
features differ from those of atmospheric muon bundles. | 1993-08-29 | 2007-05-23 | [
"hep-ph"
] | D.A. Morris and A. Ringwald |
hep-ph/9308355 | Emergence of long wavelength pion oscillations following a rapid QCD
phase transition | To model the dynamics of the chiral order parameter in a far from equilibrium
QCD phase transition, we consider quenching in the O(4) linear sigma model. We
summarize arguments and numerical evidence which show that in the period
immediately following the quench arbitrarily long wavelength modes of the pion
field are a... | 1993-08-28 | 2009-10-22 | [
"hep-ph",
"nucl-th"
] | Krishna Rajagopal |
hep-ph/9308354 | Rare Supersymmetric Top Quark Decays | {Two supersymmetric decays of the top quark, $\thb$ and $\tstopneu$, are
discussed within the framework of the Minimal Supersymmetric Standard Model
with radiatively induced breaking of $SU(2)\times U(1)$. The present
possibility of detecting these decays, given the available bounds on
supersymmetric parameters, is com... | 1993-08-28 | 2008-02-03 | [
"hep-ph"
] | F.M. Borzumati |
hep-ph/9308356 | Chiral symmetry and many-body nonleptonic decays of bottom hadrons | Chiral symmetry can be applied to many-body nonleptonic decays of heavy
hadrons. We establish the chiral effective Hamiltonian for some typical
many-body nonleptonic decays of bottom hadrons. We discuss the lowest-order
contributions coming from such a Hamiltonian and present, as an example, a
calculation of decay dist... | 1993-08-28 | 2007-05-23 | [
"hep-ph"
] | Q. P. Xu and A. N. Kamal |
hep-ph/9308353 | Triple Vector Boson Processes in $\gamma\gamma$ Colliders | We study the production of three gauge bosons at the next generation of
linear $e^+e^-$ colliders operating in the $\gamma\gamma$ mode. The processes
$\gamma\gamma \rightarrow W^+W^-V$ ($V=Z^0$, or $\gamma$) can provide direct
information about the quartic gauge-boson couplings. We analyze the total cross
section as we... | 1993-08-27 | 2009-10-22 | [
"hep-ph"
] | F.T. Brandt, O.J.P. Eboli, E.M. Gregores, M.B. Magro, P.G. Mercadante,
and S.F. Novaes |
hep-ph/9308352 | Can $\mu$--$e$ Conversion in Nuclei be a Good Probe for Lepton-Number
Violating Higgs Couplings ? | Motivated by the improving sensitivity, $R$, of experiments on $\mu~Ti
\rightarrow e~Ti$ and the enhanced Higgs nucleon interaction, we study this
lepton number violating process induced by Higgs exchange. Taking the possible
sensitivity, $R \simeq 10^{-16}$, we obtain the constraint on the
Higgs-muon-electron vertex, ... | 1993-08-27 | 2009-10-22 | [
"hep-ph"
] | Daniel Ng and John Ng |
hep-ph/9308349 | Exact $\alpha _s$ Calculation of $b\rightarrow s + \gamma $, \
$b\rightarrow s + g$ | We present an exact $\alpha_s$ calculation of the Wilson coefficients
associated with the dipole moment operators. We also give an estimate of the
branching ratio for $b\rightarrow s \gamma$. We find that higher dimensional
effects are under control within $9\%$ for $BR(b\rightarrow s \gamma)=(4.3\pm
0.37 )\times 10^{-... | 1993-08-27 | 2009-10-22 | [
"hep-ph"
] | K. Adel and York-Peng Yao |
hep-ph/9308350 | Hadronic Molecules and Scattering Amplitudes from the Nonrelativistic
Quark Model | This report summarizes recent calculations of low-energy hadron-hadron
scattering amplitudes in the nonrelativistic quark potential model, which
assume that the scattering mechanism is a single interaction (usually OGE)
followed by constituent interchange. We refer to the scattering diagrams as
``quark Born diagrams". ... | 1993-08-27 | 2008-11-26 | [
"hep-ph"
] | T.Barnes |
hep-ph/9308348 | Common Origin for the Solar and Atmospheric Neutrino Deficits | Some typos corrected, slightly different abstract, same plots, results and
conclusions. | 1993-08-27 | 2010-11-01 | [
"hep-ph"
] | A.J. Joshipura and P.I. Krastev |
hep-ph/9308351 | Introduction to Chiral Perturbation Theory | An introduction to the basic ideas and methods of Chiral Perturbation Theory
is presented. Several phenomenological applications of the effective Lagrangian
technique to strong, electromagnetic and weak interactions are discussed. | 1993-08-27 | 2015-06-25 | [
"hep-ph"
] | A. Pich |
hep-ph/9308341 | Remarks on Hot QCD | After briefly reviewing work I've done recently with Krishna Rajagopal on the
nature of the equilibrium phase transition in QCD at finite temperature and
zero baryon number and on the possibility of forming misaligned vacuum by a
quench, I discuss -- also briefly -- two new items. These are extension of the
arguments c... | 1993-08-26 | 2009-10-22 | [
"hep-ph",
"hep-th",
"nucl-th"
] | Frank Wilczek |
hep-ph/9308342 | {\Large{\bf Higgs or Neutral Vector Boson Production with a $W$ Pair in
{\LARGE $\gamma \gamma$} Collisions}} | Exploiting the fact that $W$ pair production in high-energy $\gamma \gamma$
collisions is very large, we use this process to trigger Higgs, $Z$ or photon
radiation. We find that there are sizeable rising cross-sections for triple
bosons production. At energies about $1TeV$ the new mechanism for Higgs
production becomes... | 1993-08-26 | 2009-10-22 | [
"hep-ph"
] | M.Baillargeon and F. Boudjema |
hep-ph/9308347 | Anomalous Higgs Boson Production and Decay | A non-standard symmetry breaking sector may lead to derivative couplings of
the Higgs boson and thereby to anomalous interactions with the electroweak
gauge bosons. In the framework of gauge-invariant effective Lagrangians the
resulting changes in Higgs boson production and decay mechanisms are related to
anomalous tri... | 1993-08-26 | 2008-11-26 | [
"hep-ph"
] | K. Hagiwara, R. Szalapski, D. Zeppenfeld |
hep-ph/9308345 | Where is Top? | Possibilities are discussed for determining the top quark mass $m_t$ from
observations on the decay processes for top-antitop pairs produced in
antiproton-proton collisions, assuming that the $t \to bW^+$ decay channel is
dominant and much faster than hadronization. The final states $t \bar{t} \to
\bar{b} b \mu^\pm e^\... | 1993-08-26 | 2011-03-02 | [
"hep-ph"
] | R.H. Dalitz and Gary R. Goldstein |
hep-ph/9308344 | Observation of D+ -> rho0(770) mu+ nu | We report the first observation of the Cabibbo disfavored semileptonic decay
mode D+ -> rho0(770) mu+ nu, and measure its decay rate relative to the Cabibbo
favored mode D+ -> K*0(892) mu+ nu to be Gamma(D+ -> rho0(770) mu+ nu) /
Gamma(D+ -> K*0(892) mu+ nu) = 0.044 +0.031 -0.025 (stat.) +/- 0.014 (sys). The
results ar... | 1993-08-26 | 2012-08-27 | [
"hep-ph"
] | Fermilab E653 Collaboration |
hep-ph/9308346 | Experimental Constraints on the Scale of New Physics in Top Condensate
Models | We obtain mass limits on the extra neutral gauge boson which is predicted in
a model with hidden gauge symmetry and dynamical breaking of the electroweak
symmetry by a top quark condensate. For typical model assumptions, present LEP
data exclude masses below 3\,TeV. With LEP200 or an electron-positron collider
of a c.m... | 1993-08-26 | 2007-05-23 | [
"hep-ph"
] | Ralf B\"onisch, Arnd Leike |
hep-ph/9308343 | Tests on the Hierarchy of Trilinear and Quadrilinear Weak Bosons
Couplings at the NLC and Comparison with the LHC/SSC | I first review a few basic guiding principles that lead to the notion of a
hierarchy of couplings in searches of New Physics involving weak bosons
processes. The hierarchies within a linear and a non-linear realization of
symmetry breaking are compared to the usual {\em phenomenological}
parameterization of the $WWV$ v... | 1993-08-26 | 2007-05-23 | [
"hep-ph"
] | Fawzi Boudjema |
hep-ph/9308334 | Infinite Renormalization of Theta-Term and Jarlskog Invariant for
CP-Violation | The logarithmic ultraviolet divergence in the theta-term induced by
electroweak interactions in the Kobayashi-Maskawa model of CP-violation, found
by Ellis and Gaillard, is discussed. We relate it to the Jarlskog CP-odd
invariant of quark mass matrix. The divergence arises in 14th order in Higgs
coupling as well as in ... | 1993-08-25 | 2010-11-01 | [
"hep-ph",
"hep-th"
] | I.B.Khriplovich and A.I.Vainshtein |
hep-ph/9308333 | A Systematic SO(10) Operator Analysis for Fermion Masses | A new approach for deducing the theory of fermion masses at the scale of
grand unification is proposed. Combining SO(10) grand unification, family
symmetries and supersymmetry with a systematic operator analysis, the minimal
set of fermion mass operators consistent with low energy data is determined.
Exploiting the ful... | 1993-08-25 | 2010-11-01 | [
"hep-ph"
] | G. Anderson, S. Raby, S. Dimopoulos, L. J. Hall and G. Starkman |
hep-ph/9308335 | Renormalization Group Study of the Standard Model and its Extensions:
II. the Minimal Supersymmetric Standard Model | In this paper we summarize the minimal supersymmetric standard model as well
as the renormalization group equations of its parameters. We proceed to examine
the feasability of the model when the breaking of supersymmetry is parametrized
by the soft terms suggested by supergravity theories. In such models, the
electrowe... | 1993-08-25 | 2009-10-22 | [
"hep-ph"
] | D.J. Castano, E.J. Piard, and P. Ramond |
hep-ph/9308338 | On the asymptotic ${\cal O}(\alpha \alpha_S)$ behavior of the
electroweak gauge bosons vacuum polarization functions for arbitrary quark
masses | We derive the QCD corrections to the electroweak gauge bosons vacuum
polarization functions at high and zero--momentum transfer in the case of
arbitrary internal quark masses. We then discuss in this general case (i) the
connection between the $O(\alpha \alpha_S)$ calculations of the vector bosons
self--energies using ... | 1993-08-25 | 2009-10-22 | [
"hep-ph"
] | A. Djouadi and P. Gambino |
hep-ph/9308336 | "Large $(g-2)_\mu$ in SU(5)xU(1) supergravity models" | We compute the supersymmetric contribution to the anomalous magnetic moment
of the muon within the context of $SU(5)\times U(1)$ supergravity models. The
largest possible contributions to $a^{susy}_\mu$ occur for the largest allowed
values of $\tan\beta$ and can easily exceed the present experimentally allowed
range, e... | 1993-08-25 | 2009-10-22 | [
"hep-ph"
] | J. Lopez, D. Nanopoulos, and X. Wang |
hep-ph/9308340 | New Fermions at e$^+$e$^-$ Colliders: II.~Signals and Backgrounds | We discuss the production, at high--energy e$^+$e$^-$ linear colliders, of
new heavy fermions predicted by extensions of the Standard Model. We analyze in
great details the various signals and the corresponding backgrounds for both
pair production and single production in association with ordinary fermions.
Concentrati... | 1993-08-25 | 2009-10-22 | [
"hep-ph"
] | G. Azuelos and A. Djouadi |
hep-ph/9308337 | Properties of Orbitally Excited Heavy-Light Mesons | Orbitally excited heavy-light mesons are potentially important as tools for
tagging the flavors and momenta of ground-state pseudoscalars detected through
weak decays. We use heavy-quark symmetry supplemented by insights gleaned from
potential models to estimate masses and widths of $p$-wave $B$, $B_s$, and
$D_s$ meson... | 1993-08-25 | 2008-11-26 | [
"hep-ph"
] | Estia J. Eichten, Christopher T. Hill, and Chris Quigg |
hep-ph/9308339 | New Fermions at e$^+$e$^-$ Colliders: I. Production and Decay | We analyze the production in $e^+e^-$ collisions of new heavy fermions
stemming from extensions of the Standard Model. We write down the most general
expression for the production of two heavy fermions and their subsequent
decays, allowing for the polarization of the e$^+$e$^-$ initial state and
taking into account the... | 1993-08-25 | 2009-10-22 | [
"hep-ph"
] | A. Djouadi |
hep-ph/9308328 | Vector Meson Exchanges and CP Asymmetry in
$K^{\pm}\rightarrow\pi^{\pm}\pi^0$ | Using a current algebra framework, we discuss the contribution of vector
meson exchanges to the CP violating asymmetry in the decay
$K^{\pm}\rightarrow\pi^{\pm}\pi^0$, resulting from the interference of the
$K\rightarrow\pi\pi$ amplitude with the radiative correction
$K\rightarrow\pi\pi\gamma$. | 1993-08-24 | 2010-11-01 | [
"hep-ph"
] | Riazuddin, N. Paver and F. Simeoni |
hep-ph/9308330 | Production of $Z$ Boson Pairs at Photon Linear Colliders | The $ZZ$ pair production rate in high energy $\gamma \gamma$ collisions is
evaluated with photons from laser backscattering. We find that searching for
the Standard Model Higgs boson with a mass up to, or slightly larger than, 400
GeV via the $ZZ$ final state is possible via photon fusion with backscattered
laser photo... | 1993-08-24 | 2009-10-22 | [
"hep-ph"
] | Duane A. Dicus and Chung Kao |
hep-ph/9308331 | Theory of Gauge Boson Structure | Based on an Invited Plenary Talk given at ``Workshop on Physics and
Experiments with Linear $e^+e^-$ Colliders,'' Waikoloa, Hawaii, April 26--30,
1993. This paper reviews theoretical issues concerning the structure of vector
bosons, with emphasis on deviations of triple-vector-boson interactions from
the predictions of... | 1993-08-24 | 2007-05-23 | [
"hep-ph"
] | M.B. Einhorn |
hep-ph/9308332 | Effective Field Theory for Diffractive QCD Processes | An effective field theory describing the QCD diffraction scattering is
constructed. The constituent quarks interacting with multiperi- pheral gluons
and Goldstone bosons are described by impact- parameter two-dimensional sigma
models for the color and the flavor degrees of freedom. The elastic scattering
amplitude is t... | 1993-08-24 | 2007-05-23 | [
"hep-ph"
] | Soo-Jong REY (Seoul National University) |
hep-ph/9308329 | Light Threshold Effects in Supersymmetric Grand Unified Theories | Supersymmetric Grand Unified Theories have a rich spectrum of particles
barely heavier than the intermediate vector bosons. As their non-supersymmetric
counterparts, they lead to many relations among low energy observables. But the
precise form of the predictions is modified by the extended spectrum. If the
masses of t... | 1993-08-24 | 2011-03-10 | [
"hep-ph"
] | Alon E. Faraggi and Benjamin Grinstein |
hep-ph/9308325 | Model Independent Properties and Cosmological Implications of the
Dilaton and Moduli Sectors of 4-d Strings | We show that if there is a realistic 4-d string, the dilaton and moduli
supermultiplets will generically acquire a small mass O(m_{3/2}), providing the
only vacuum-independent evidence of low-energy physics in string theory beyond
the supersymmetric standard model. The only assumptions behind this result are
(i) softly... | 1993-08-24 | 2009-10-29 | [
"hep-ph"
] | B. de Carlos, J.A. Casas, F. Quevedo and E. Roulet |
hep-ph/9308327 | $1/N_C$ Corrections to $g_A$ in the Light of PCAC$ | We comment on recently discovered $1/N_C$ corrections to the ` nucleon axial
current in the framework of the Nambu--Jona-Lasinio soliton. This kind of
corrections arises only for a special treatment of ordering ambiguities of
collective coordinates and operators in the semiclassical quantization. In
addition to the mis... | 1993-08-24 | 2008-11-26 | [
"hep-ph"
] | R. Alkofer and H. Weigel |
hep-ph/9308326 | Prospects for Multiple Weak Gauge Boson Production at Supercollider
Energies | We discuss the prospects for observing multiple weak gauge boson production
at the SSC and LHC. We summarize conventional perturbative cross sections for
processes involving 1-6 final state weak gauge bosons and compare them with
more speculative scenarios including 1) a toy model of a strongly interacting
Higgs sector... | 1993-08-24 | 2007-05-23 | [
"hep-ph"
] | D.A. Morris |
hep-ph/9308320 | The matrix element for radiative Bhabha scattering in the forward
direction | We present an approximation to the matrix element for the process e+e- -->
e+e-gamma, appropriate to the situation where one or both of the fermions are
scattered over very small angles. The leading terms in the situation where all
scattering angles are small contains not only terms quadratic in the electron
mass, but ... | 1993-08-23 | 2009-10-22 | [
"hep-ph"
] | Ronald Kleiss |
hep-ph/9308322 | Anomalous Evolution of the Gottfried Sum | We discuss nonperturbative QCD evolution of nonsinglet nucleon structure
functions, with particular application to the Gottfried sum. We show that the
coupling of the quark partons to bound state mesons leads to nonperturbative
contributions to the Altarelli--Parisi equations which, due to the axial
anomaly, result in ... | 1993-08-23 | 2014-11-17 | [
"hep-ph"
] | Richard Ball and Stefano Forte |
hep-ph/9308318 | CP Violation Induced by Heavy Majorana Neutrinos in the Decays of Higgs
Scalars into Top-Quark, W- and Z-Boson Pairs | We analyze the possibility of $CP$ violation induced by heavy Majorana
neutrinos in the decays of the Higgs particle into top-quark, $W$- and
$Z$-boson pairs. In the framework of various ``see-saw" models with interfamily
mixings, we find that Majorana neutrinos may give rise to sizable $CP$-odd
observables at the one-... | 1993-08-23 | 2010-11-01 | [
"hep-ph"
] | A. Ilakovac, B.A. Kniehl and A. Pilaftsis |
hep-ph/9308323 | SUSY GUTs: A practical introduction | An introduction to the most important concepts in the subject of
supersymmetric unified theories is presented. The emphasis is on the practical
aspects leading to state-of-the-art calculations in this renascent subject. The
topics covered include: generalities of supersymmetric unified theories, gauge
and Yukawa coupli... | 1993-08-23 | 2007-05-23 | [
"hep-ph"
] | J. Lopez |
hep-ph/9308319 | Electromagnetic Signals and Backgrounds in Heavy-Ion Collisions: | Aspects of the dilepton spectrum in heavy-ion collisions are discussed, with
special emphasis on using lattice computations to guide the phenomenology of
finite temperature hadronic matter. The background rates for continuum
dileptons expected in forthcoming experiments are summarised. Properly
augmented by data from o... | 1993-08-23 | 2010-11-01 | [
"hep-ph",
"hep-lat",
"nucl-th"
] | Sourendu Gupta |
hep-ph/9308324 | Corrections to Bino Annihilation I: Sfermion Mixing | We consider corrections to bino annihilation due to sfermion mixing. | 1993-08-23 | 2009-09-25 | [
"hep-ph"
] | Toby Falk, Richard Madden, Keith A. Olive, and Mark Srednicki |
hep-ph/9308321 | Extended Gauge Sectors at Linear Colliders | Signatures of extended gauge models at high energy \epem\ linear colliders
are summarized. Talk presented at the Workshop on Physics and Experiments with
Linear \epem\ Colliders, Waikoloa, Hawaii, April 1993. | 1993-08-23 | 2007-05-23 | [
"hep-ph"
] | J.L. Hewett |
hep-ph/9308317 | Electromagnetic Moments of the Baryon Decuplet | We compute the leading contributions to the magnetic dipole and electric
quadrupole moments of the baryon decuplet in chiral perturbation theory. The
measured value for the magnetic moment of the $\Omega^-$ is used to determine
the local counterterm for the magnetic moments. We compare the chiral
perturbation theory pr... | 1993-08-22 | 2009-10-22 | [
"hep-ph",
"nucl-th"
] | M.N. Butler, M.J. Savage and R.P. Springer |
hep-ph/9308314 | Observed Supersymmetry and Parity Doubling of Excited Hadrons from a
Simple Spectrum-Generating Algebra | We find remarkable agreement with the observed excitations of hadrons with a
simple three parameter mass relation of the SU(3) subgroup of the underlying
U(15/30) graded Lie group. The baryons are the appropriate supersymmetric
partners of the mesons. An interesting feature, which is a focus of current
interest, is tha... | 1993-08-21 | 2010-11-01 | [
"hep-ph"
] | Jishnu Dey and Mira Dey |
hep-ph/9308316 | B-Quark Production at Hadron Colliders | Results for b-quark production at hadron colliders, both current and
proposed, are presented. Distributions in $p_t$ are presented for the TeVatron
and SSC. Confirmation of agreement between the ${\cal O}(\alpha_S^3)$
calculations and UA1 data is presented, and the discrepancy between the ${\cal
O}(\alpha_S^3)$ calcula... | 1993-08-21 | 2007-05-23 | [
"hep-ph"
] | S. Riemersma and R. Meng |
hep-ph/9308311 | Searching for $t\to ch^0$ or $h^0\to t\bar c$ at $e^+e^-$ Linear
Colliders | Talk presented at 2nd International Workshop on Physics and Experiments with
Linear $e^+e^-$ Colliders (Hawaii, April 1993). | 1993-08-21 | 2007-05-23 | [
"hep-ph"
] | George Wei-Shu Hou |
hep-ph/9308312 | Experimental and Theoretical Implications of New Sequential Leptons | If new sequential leptons $E^\pm$ and $N^0$ exist, the LEP bound implies
$m_E$, $m_N > M_Z/2$. The heaviness of the neutral lepton breaks away from the
pattern of the first three generations. The minimal model is to have 4
left-handed lepton doublets and 4 right-handed charged lepton singlets, but
only one right-handed... | 1993-08-21 | 2009-10-22 | [
"hep-ph"
] | Wei-Shu Hou and Gwo-Guang Wong |
hep-ph/9308315 | On the Spontaneous CP Breaking in the Higgs Sector of the Minimal
Supersymmetric Standard Model | We revise a recently proposed mechanism for spontaneous CP breaking at finite
temperature in the Higgs sector of the Minimal Supersymmetric Standard Model,
based on the contribution of squarks, charginos and neutralinos to the one-loop
effective potential. We have included plasma effects for all bosons and added
the co... | 1993-08-21 | 2010-11-01 | [
"hep-ph"
] | J.R. Espinosa, J.M. Moreno and M. Quir\'os |
hep-ph/9308313 | Simply Modeling B -> K* gamma | A simple relativistic model of heavy-light mesons is applied to the rare
decay B -> K* gamma in the standard model. We find Gamma(B -> K* gamma)/Gamma(b
-> s gamma)=(17 \pm 4)% and BR(B -> K* gamma)=(4.8 \pm 1.9) \times
10^{-5}(V_cb/.04)^2. These numbers are reduced by only 20% in the heavy-quark
limit. | 1993-08-20 | 2009-10-22 | [
"hep-ph"
] | B. Holdom and M. Sutherland |
hep-ph/9308305 | Relativistic Covariant Equal-Time Equation For Quark-Diquark System | Relativistic three-dimensional quasipotential (equal-time) equations are
considered, which describe bound states of fermion and boson of spin S=0 or
S=1. The spin structure of the interaction quasipotentials in such systems is
studied, and corresponding partial-wave equation for the simplest case is
obtained. Such equa... | 1993-08-20 | 2007-05-23 | [
"hep-ph"
] | Valeri V. Dvoeglazov, Sergei V. Khudyakov and Svyatoslav B. Salganik |
hep-ph/9308307 | Sphaleron transitions in a realistic heat bath | We measure the diffusion rate of Chern-Simons number in the (1+1)-dimensional
Abelian Higgs model interacting with a realistic heat bath for temperatures
between 1/13 and 1/3 times the sphaleron energy. It is found that the measured
rate is close to that predicted by one-loop calculation at the lower end of the
tempera... | 1993-08-20 | 2009-10-22 | [
"hep-ph",
"hep-lat",
"hep-th"
] | A. Krasnitz and R. Potting |
hep-ph/9308304 | Two-loop renormalization of gaugino masses in general supersymmetric
gauge models | We calculate the two-loop renormalization group equations for the running
gaugino masses in general SUSY gauge models, improving our previous result. We
also study its consequence to the unification of the gaugino masses in the SUSY
SU(5) model. The two-loop correction to the one-loop relation
$m_i(\mu)\propto\alpha_i(... | 1993-08-20 | 2009-10-22 | [
"hep-ph"
] | Youichi Yamada |
hep-ph/9308308 | Framework for Identification of Neutral B Mesons | We introduce a method for the study of CP-violating asymmetries in tagged
states of neutral $B$ mesons with arbitrary coherence properties. A set of
time-dependent measurements is identified which completely specifies the
density matrix of the initial state in a two-component space with basis vectors
$B^0$ and $\overli... | 1993-08-20 | 2010-11-01 | [
"hep-ph"
] | Michael Gronau (Department of Physics, Technion) and Jonathan L.
Rosner (Enrico Fermi Institute and Department of Physics, University of
Chicago) |
hep-ph/9308306 | Non-Trivial SU(N) Instantons and Exotic Skyrmions | The classical Yang-Mills equations are solved for arbitrary semi-simple gauge
groups in the Schwinger-Fock gauge. A new class of SU(N) instantons is
presented which are not embeddings of SU(N-1) instantons but have non-trivial
SU(N) color structure and carry winding number $n=N(N^{2}-1)/6$. Explicit
configurations are ... | 1993-08-20 | 2009-10-22 | [
"hep-ph"
] | H. Reinhardt, K. Langfeld |
hep-ph/9308309 | Radiative Corrections to Higgs Boson Masses in the Next-to-Minimal
Supersymmetric Standard Model | We perform a systematic study of radiative corrections to the masses of the
Higgs bosons in the minimal supersymmetric standard model (MSSM) augmented by a
single gauge singlet, the so-called next-to-minimal supersymmetric standard
model (NMSSM). Our method is based on the one-loop effective potential and
includes effe... | 1993-08-20 | 2011-01-13 | [
"hep-ph"
] | T. Elliott, S.F. King and P.L. White |
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