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 |
|---|---|---|---|---|---|---|
hep-ph/9306223 | New Supersymmetric Two-Higgs-Doublet Structure at the Electroweak Energy
Scale | Contrary to common belief, the requirement that supersymmetry exists and that
there are two Higgs doublets and no singlet at the electroweak energy scale
does not necessarily result in the minimal supersymmetric standard model
(MSSM). An interesting alternative is presented. | 1993-06-03 | 2007-05-23 | [
"hep-ph"
] | Ernest Ma |
hep-ph/9306218 | Astrophysical Limit on the Deformation of the Poincare Group | The deformed Poincar\'{e} group contains a characteristic mass, $\kappa$. At
energies exceeding $\kappa$, deviations from the special theory of relativity
become significant. However, small deviations from ordinary relativistic
kinematics are observable even at energies substantially lower than $\kappa$.
The observatio... | 1993-06-03 | 2009-10-22 | [
"hep-ph"
] | G. Domokos and S. Kovesi--Domokos (Department of Physics and Astronomy
The Johns Hopkins University, Baltimore, MD) |
hep-ph/9306221 | Constraints on Cosmic Strings due to Black Holes Formed from Collapsed
Cosmic String Loops | The cosmological features of primordial black holes formed from collapsed
cosmic string loops are studied. Observational restrictions on a population of
primordial black holes are used to restrict $f$, the fraction of cosmic string
loops which collapse to form black holes, and $\mu$, the cosmic string
mass-per-unit-len... | 1993-06-03 | 2008-11-26 | [
"hep-ph",
"astro-ph",
"gr-qc"
] | R. R. Caldwell and E.Gates |
hep-ph/9306220 | Baryonic Correlation Functions in the Random Instanton Vacuum | We study baryon and diquark correlation functions in the framework of an
instanton model for the QCD vacuum. The model naturally accomodates a light
scalar diquark. As a consequence, the correlation functions for the nucleon and
delta are found to be qualitatively different. Using a complete set of all
available correl... | 1993-06-03 | 2009-10-22 | [
"hep-ph"
] | T. Schaefer, E. V. Shuryak and J. Verbaarschot |
hep-ph/9306219 | The heavy fermion damping rate puzzle | : We examine again the problem of the damping rate of a moving heavy fermion
in a hot plasma within the resummed perturbative theory of Pisarski and
Braaten. The ansatz for its evaluation which relates it to the imaginary part
of the fermion propagator pole in the framework of a self-consistent approach
is critically a... | 1993-06-03 | 2009-10-22 | [
"hep-ph"
] | S. Peigne, E. Pilon and D. Schiff |
hep-ph/9306216 | Hadronic axion window and the big-bang nucleosynthesis | Hadronic axions with the decay constant $f_a\simeq 10^{6}$ GeV may fulfill
all astrophysical and laboratory constraints discussed so far. In this paper,
we reexamine the possibility of the hadronic axion window while taking into
account the uncertainties of some parameters describing low energy axion
dynamics. It is fo... | 1993-06-03 | 2008-11-26 | [
"hep-ph",
"astro-ph"
] | Sanghyeon Chang, Kiwoon Choi |
hep-ph/9306209 | Mass Limits of Invisibly Decaying Higgs Particles from the LEP Data | In the Majoron models the $SU(2)$ doublet Higgs can decay invisibly into a
Majoron pair via its mixing with a singlet. An analysis of the LEP data shows
the invisible decay mode to be more visible than the SM decay. For these
models, the dominantly doublet Higgs $H$ is shown to have a mass limit within
$\pm 6$ GeV of t... | 1993-06-02 | 2009-10-22 | [
"hep-ph"
] | Biswajoy Brahmachari, Anjan S. Joshipura, Saurabh D. Rindani, D.P. Roy
and Sridhar K |
hep-ph/9306210 | Retarded-Advanced N-point Green Functions in thermal field theories | The general relationship between a Retarded-Advanced Green function of the
Real Time formalism and analytical continuations of the Imaginary Time
Amplitude is obtained via perturbation theory. A 4-point R-A function is, at
most, a linear combination of three analytical continuations, and a 5-point R-A
function of seven... | 1993-06-02 | 2009-10-22 | [
"hep-ph"
] | F. Guerin |
hep-ph/9306208 | Existence of a New Instanton in Constrained Yang-Mills-Higgs Theory | Our goal is to discover possible new 4-dimensional euclidean solutions
(instantons) in fundamental SU(2) Yang-Mills-Higgs theory, with a constraint
added to prevent collapse of the scale. We show that, most likely, there exists
one particular new constrained instanton (\Istar) with vanishing Pontryagin
index. This is b... | 1993-06-02 | 2009-10-22 | [
"hep-ph"
] | F. R. Klinkhamer |
hep-ph/9306214 | Analyticity Properties and Unitarity Constraints of Heavy Meson Form
Factors | We derive new bounds on the b-number form factor $F(q^2)$ of the B meson.
(Revised version of hep-ph/9306214). | 1993-06-02 | 2009-10-22 | [
"hep-ph"
] | Eduardo de Rafael and Josep Taron |
hep-ph/9306207 | Introductory Low-Energy Supersymmetry | Low-energy supersymmetry is a theoretical extension of the Standard Model of
particle physics in which supersymmetry is invoked to explain the origin of the
electroweak scale. In this approach, the energy scale of supersymmetry breaking
can be no larger than about 1 TeV. In these lectures, a pedagogical account of
soft... | 1993-06-02 | 2007-05-23 | [
"hep-ph"
] | Howard E. Haber |
hep-ph/9306213 | Coupling Constant and Yukawa Coupling Unifications: Uncertainties and
Constraints | The status of coupling constant unification (with and without a unification
of Yukawa couplings) is discussed. Uncertainties associated with the input
coupling constants, $m_{b}$ and $m_{t}$, threshold corrections at the low and
high scale, and possible nonrenormalizable operators are described and a
discrepancy betwee... | 1993-06-02 | 2007-05-23 | [
"hep-ph"
] | Nir Polonsky |
hep-ph/9306215 | Studying minijets via the $p_T$ dependence of two-particle correlation
in azimuthal angle $\phi$ | Following my previous proposal that two-particle correlation functions can be
used to resolve the minijet contribution to particle production in minimum
biased events of high energy hadronic interactions, I study the $p_T$ and
energy dependence of the correlation. Using HIJING Monte Carlo model, it is
found that the co... | 1993-06-02 | 2011-02-15 | [
"hep-ph",
"nucl-th"
] | Xin-Nian Wang |
hep-ph/9306206 | Contribution of Scalar Loops to the Three-Photon Decay of the Z | I corrected 3 mistakes from the first version: that were an omitted Feynman
integration in the function f^3_{ij}, a factor of 2 in front of log f^3_{ij} in
eq.2 and an overall factor of 2 in Fig.1 c). The final result is changed
drastically. Doing an expansion in the Higgs mass I show that the matrix
element is identic... | 1993-06-02 | 2009-10-22 | [
"hep-ph"
] | Heinz K\"onig |
hep-ph/9306211 | Screening Mass from Chiral Perturbation Theory, Virial Expansion, and
the Lattice | We calculate the electric screening mass in hot hadronic matter using two
different approaches, chiral perturbation theory and the relativistic virial
expansion with empirical phase shifts, and compare the results to each other
and to a gas of free pions and $\rho$ mesons. We also compute the electric
screening mass fo... | 1993-06-02 | 2009-10-22 | [
"hep-ph",
"hep-lat",
"nucl-th"
] | V.L. Eletsky, J.I. Kapusta and R. Venugopalan |
hep-ph/9306212 | Astrophysical Solutions are Incompatible with the Solar Neutrino Data | We consider the most general solar model, using the neutrino fluxes as free
parameters constrained only by the solar luminosity, and show that the combined
solar neutrino data exclude any astrophysical solution at 98\% C.L.\ Our best
fit to the $^7$Be and $^8$B fluxes is respectively $<$7\% and 37$\pm$4\% of the
standa... | 1993-06-02 | 2009-04-13 | [
"hep-ph",
"astro-ph"
] | S. Bludman, N. Hata, and P. Langacker |
hep-ph/9306204 | Discovering Supersymmetry with Like-sign Dileptons | Supersymmetry may be discovered at hadron colliders by searching for events
similar to the top quark signal of two isolated leptons. In the case of gluino
production, the most distinguishing feature is that in half the events the two
leading leptons have the same sign. We demonstrate the remarkable sensitivity
of this ... | 1993-06-01 | 2009-10-22 | [
"hep-ph"
] | R. Michael Barnett, John F. Gunion, and Howard E. Haber |
hep-ph/9306205 | The Bottom Mass Prediction in Supersymmetric Grand Unification;
Uncertainties and Constraints | Grand unified theories often predict unification of Yukawa couplings (e.g.,
$h_{b} = h_{\tau}$), and thus certain relations among fermion masses. The
latter can distinguish these from models that predict only coupling constant
unification. The implications of Yukawa couplings of the heavy-family in the
supersymmetric e... | 1993-06-01 | 2009-10-22 | [
"hep-ph"
] | Paul Langacker and Nir Polonsky |
hep-ph/9306201 | Heavy Quark Fragmentation into Heavy Mesons | We present a QCD based interpretation of heavy quark fragmentation which
utilizes the heavy quark mass expansion. By distinguishing between perturbative
and non-perturbative QCD effects, we show how to reliably extract mass
independent parameters characterizing the fragmentation function. Because these
parameters are q... | 1993-06-01 | 2009-09-15 | [
"hep-ph"
] | R. L. Jaffe and L. Randall |
hep-ph/9306203 | Heavy Top Quark Searches in the Di-Lepton Mode at the Tevatron | We present the results of a detailed study of the effects of $b$-tagging on
the heavy top-quark signal and backgrounds for the modes of the di-lepton plus
two high transverse energy jets at the Fermilab Tevatron. The general
characteristics of the heavy top-quark signal events are also discussed so that
a comparison ca... | 1993-06-01 | 2009-10-22 | [
"hep-ph"
] | Tao Han and Stephen Parke |
hep-ph/9306202 | Multi Particle Semiclassical Process in \PHI^4 Theory | We have shown an example of semiclassical transition in \phi^4 model with
positive coupling constant. This process describes a semiclassical transition
between two coherent states with much smaller average number of particles in
the initial state than in the final state. This transition is technically
analogous to the ... | 1993-06-01 | 2010-11-01 | [
"hep-ph",
"hep-th"
] | Alexander Kyatkin |
hep-ph/9305349 | A Bjorken sum rule for semileptonic $\Omega_b$ decays to ground and
excited charmed baryon states | We derive a Bjorken sum rule for semileptonic $\Omega_b$ decays to ground and
low-lying negative-parity excited charmed baryon states, in the heavy quark
limit. We discuss the restriction from this sum rule on form factors and
compare it with some models. | 1993-05-31 | 2009-10-22 | [
"hep-ph"
] | Q. P. Xu |
hep-ph/9305348 | QCD Calculation of the $B \rightarrow \pi,K$ Form Factors | We calculate the form factors for the heavy-to-light transitions
$B\rightarrow \pi,K $ by means of QCD sum rules using $\pi$ and $K$ light-cone
wave functions. Higher twist contributions as well as gluonic corrections are
taken into account. The sensitivity to the shape of the leading-twist wave
functions and effects o... | 1993-05-31 | 2019-08-15 | [
"hep-ph"
] | V.M. Belyaev, A. Khodjamirian, R. R\"uckl |
hep-ph/9305347 | Heavy Fermion Production and the Symmetry Breaking Sector of the
Electroweak Interactions | We point out that heavy fermion production through the fusion of the
longitudinal gauge bosons might be relevant in probing the strongly interacting
symmetry breaking sector of the electroweak interactions, by showing the
dependence of the one loop amplititude for ($ w^{+} w^{-} \rightarrow
\overline{t} t $) on the sym... | 1993-05-29 | 2009-10-22 | [
"hep-ph"
] | Taekoon Lee |
hep-ph/9305346 | Minijet corrections to Higgs production | We study higher order corrections to Higgs production with an associated jet
at SSC energies, using the resummation of the leading logarithmic contributions
to multiple gluon emissions due to Lipatov and collaborators. We find a
considerable enhancement of Higgs production at large transverse momenta. | 1993-05-29 | 2009-10-22 | [
"hep-ph"
] | V. Del Duca and C.R. Schmidt |
hep-ph/9305345 | A Lattice Monte Carlo Study of the Hot Electroweak Phase Transition | We study the finite temperature electroweak phase transition with lattice
perturbation theory and Monte Carlo techniques. Dimensional reduction is used
to approximate the full four-dimensional SU(2) + a fundamental doublet Higgs
theory by an effective three-dimensional SU(2) + adjoint Higgs + fundamental
Higgs theory w... | 1993-05-28 | 2009-10-22 | [
"hep-ph",
"hep-lat"
] | K. Kajantie, K. Rummukainen and M. Shaposhnikov |
hep-ph/9305344 | An Effective $p_T$ Cutoff for the Isolalated Lepton Background from
Bottom Decay -- | There is a strong correlation between the $p_T$ and isolation of the lepton
coming from $B$ decay. Consequently the isolated lepton background from $B$
decay goes down rapidly with increasing lepton $p_T$; and there is a $p_T$
cutoff beyond which it effectively vanishes. For the isolation cut of $E^{AC}_T
< 10$ GeV, ap... | 1993-05-28 | 2011-01-13 | [
"hep-ph"
] | N.K. Mondal and D.P. Roy |
hep-ph/9305343 | The Rate for $B\bbar$ Production Accompanied by a Single Pion | We study the rate for the production of ${B B^\pm \pi^\mp}$, where the sign
of the charged pion tags the flavor content of the neutral $B$ meson. We
estimate this branching ratio, employing the heavy meson chiral effective
theory. We find that at center of mass energy of approximately 12 GeV, a $B$
meson pair should be... | 1993-05-28 | 2007-05-23 | [
"hep-ph"
] | Lisa Randall and Eric Sather |
hep-ph/9305342 | Simulating Supersymmetry with ISAJET 7.0/ ISASUSY 1.0 | We review the physics assumptions and input used in ISAJET~7.0 /
ISA\-SUSY~1.0 that are relevant for simulating fundamental processes within the
framework of the Minimal Supersymmetric Standard Model (MSSM) at $p\bar p$ and
$pp$ colliders. After a brief discussion of the underlying MSSM framework, we
discuss event simu... | 1993-05-28 | 2007-05-23 | [
"hep-ph"
] | H. Baer, F. Paige, S. Protopopescu and X. Tata |
hep-ph/9305337 | Metacolor | A new mechanism is presented for the generation of quark and lepton masses,
based on a heavy fourth family and a new sector of massless fermions. The
massless fermions have only discrete chiral symmetries and they are confined by
the metacolor force. The resulting electroweak corrections may be smaller than
in technico... | 1993-05-27 | 2009-10-22 | [
"hep-ph"
] | B. Holdom |
hep-ph/9305329 | Heat-Kernel Calculation of Quark Determinant and Computer Algebra | In this paper there we describe the calculational background of deriving a
strong meson Lagrangian from the Nambu--Jona-Lasinio quark model using the
computer algebra systems FORM and REDUCE in recursive algorithms, based on the
heat-kernel method for the calculation of the quark determinant. | 1993-05-27 | 2015-06-25 | [
"hep-ph"
] | A.A.Bel'kov, D.Ebert, A.V.Lanyov, A.Schaale |
hep-ph/9305336 | Bound States in the Continuum from Supersymmetric Quantum Mechanics | Starting from a potential with a continuum of energy eigenstates, we show how
the methods of supersymmetric quantum mechanics can be used to generate
families of potentials with bound states in the continuum [BICs]. We also find
the corresponding wave functions. Our method preserves the spectrum of the
original potenti... | 1993-05-27 | 2008-11-26 | [
"hep-ph"
] | J. Pappademos, U. Sukhatme, and A. Pagnamenta |
hep-ph/9305328 | Constraints on a Massive Dirac Neutrino Model | We examine constraints on a simple neutrino model in which there are three
massless and three massive Dirac neutrinos and in which the left handed
neutrinos are linear combinations of doublet and singlet neutrinos. We examine
constraints from direct decays into heavy neutrinos, indirect effects on
electroweak parameter... | 1993-05-27 | 2009-09-15 | [
"hep-ph"
] | Thomas Wynter and Lisa Randall |
hep-ph/9305338 | Neutrinoless Double Beta Decay and CP Violation | We study the relation between the Majorana neutrino mass matrices and the
neutrinoless double beta decay when CP is not conserved. We give an explicit
form of the decay rate in terms of a rephasing invariant quantity and
demonstrate that in the presence of CP violation it is impossible to have
vanishing neutrinoless do... | 1993-05-27 | 2010-11-01 | [
"hep-ph"
] | Patrick J. O'Donnell and Utpal Sarkar |
hep-ph/9305335 | Two-Photon Decay Widths of Higgs Particles | Two--photon decays of Higgs bosons are important channels for the search of
these particles in the intermediate mass range at the $pp$ colliders LHC and
SSC. Dynamical aspects of the Higgs coupling to two photons can also be studied
by means of the $\gamma \gamma$ fusion of Higgs particles at high--energy
e$^+$e$^-$ li... | 1993-05-27 | 2011-07-19 | [
"hep-ph"
] | A. Djouadi, M. Spira and P. M. Zerwas |
hep-ph/9305334 | Electromagnetic properties of the neutrinos and the pion radiative decay | We investigate the implications of neutrino electromagnetic dipole moments
for the radiative decay $\pi \rightarrow e \nu \gamma$. We show that the
dominant new effect comes from the interference between the amplitude of the
process with the photon emitted by the neutrino and the structure dependent
standard amplitude.... | 1993-05-27 | 2011-07-19 | [
"hep-ph"
] | D. Grasso, M. Pietroni and A. Riotto |
hep-ph/9305340 | Heavy Quark and Chiral Symmetry Predictions for Semileptonic Decays
B->D(D*),pi,l,nu | We study in detail the prediction for the semileptonic decays $\bar{B} \to D
(D^*) \pi \ell \bar{\nu}$ by heavy quark and chiral symmetry. The branching
ratio for $\bar{B} \to D \pi \ell \bar{\nu}$ is quite significant, as big as
$(0.5-1)\%$. The branching ratio for $\bar{B} \to D^* \pi \ell \bar{\nu}$ is
only of order... | 1993-05-27 | 2009-10-22 | [
"hep-ph"
] | H-Y Cheng, C-Y Cheung, W. Dimm, G-L Lin, Y.C. Lin, T-M Yan, H-L Yu |
hep-ph/9305339 | Closing in on Supersymmetry | A survey is made of some recent ideas and progress in the phenomenological
applications of Supersymmetry (SUSY). We describe the success of SUSY-GUT
models, the expected experimental signatures and present limits on SUSY partner
particles, and the phenomenology of Higgs bosons in the minimal SUSY model.} | 1993-05-27 | 2007-05-23 | [
"hep-ph"
] | V. Barger and R.J.N. Phillips |
hep-ph/9305341 | A Note on `Hot Spot' Hunting in Deep-Inelastic Scattering | We consider the inclusive cross section for jet production with large
transverse momentum in deep-inelastic scattering. This process has been
proposed as a probe of small-x physics, particularly the measurement of `hot
spots' inside the proton. We present a numerical calculation of this process,
taking into account a l... | 1993-05-27 | 2009-10-22 | [
"hep-ph"
] | E.Laenen and E.Levin |
hep-ph/9305333 | On the Origin of the Enhancementof CP-violating Charge Asymmetries in $K
\rightarrow 3\pi$ Decays Predicted from Chiral Theory | We present an analysis of the enhancement of CP-violating charge asymmetries
in $K \rightarrow 3\pi$ decays. Calculations of decay amplitudes are performed
on the basis of bosonized strong and weak Lagrangians derived from
QCD-motivated quark Lagrangians. We show that the interplay of fourth-order
contributions of chir... | 1993-05-27 | 2010-11-01 | [
"hep-ph"
] | A.A.Bel'kov, G.Bohm, D.Ebert, A.V.Lanyov, A.Schaale |
hep-ph/9305331 | Experimental determination of Chiral Symmetry Breaking Parameters | In the low energy domain, Chiral Perturbation Theory parametrizes the small
chiral symmetry breaking effects, produced by the quark masses $m_u$, $m_d$ and
$m_s$, in terms of order parameters of massless QCD. The latter can then, in
principle, be measured in high precision, low energy experiments. We discuss
several re... | 1993-05-27 | 2007-05-23 | [
"hep-ph"
] | Marc Knecht |
hep-ph/9305332 | A possible experimental determination of $m_s/{\hat m}$ from $K_{\mu 4}$
decays | $K\pi$ scattering and $K_{\mu 4}$ decays are studied at leading order of
improved chiral perturbation theory. It is shown that high precision $K_{\mu
4}$ experiments at, e.g., DA$\Phi$NE should allow for a direct measurement of
the quark mass ratio $m_s$/${\hat m}$. | 1993-05-27 | 2009-10-22 | [
"hep-ph"
] | M. Knecht, H. Sazdjian, J. Stern and N.H. Fuchs |
hep-ph/9305330 | Radiative Kaon Decays and $CP$ Violation | The amplitudes of $K \rightarrow \pi \gamma^* \rightarrow \pi e^+e^-$ and $K
\rightarrow \pi \pi \gamma$ decays have been calculated within chiral
Lagrangian approach including higher-order derivative terms and meson loops.
The selfconsistency of the simultaneous description of the experimental data on
the nonleptonic ... | 1993-05-27 | 2008-02-03 | [
"hep-ph"
] | A.A.Bel'kov, A.V.Lanyov, A.Schaale |
hep-ph/9305324 | Direct CP Violation in $K_L\to\pi^+\pi^-\gamma$ | CP violation due to interference between $K_L$ and $K_S$ decays into $\pi
^+\pi^-\gamma$ is analyzed in the Standard Model. The CP-violating parameter
$\epsilon'_{+- \gamma}$, which is the difference between $\eta_{+-\gamma}$ and
$\eta_{+-}$, receives dominant contributions from $K^0-\bar{K}^0$ mixing and
the gluon pen... | 1993-05-26 | 2010-11-01 | [
"hep-ph"
] | Hai-Yang Cheng |
hep-ph/9305327 | Soft Photons in $W^+W^-$ Production at LEP200 | The pattern of soft photon radiation in $\ee\to\ww$ has a rich structure,
with contributions from photon emission off the initial state and off the final
state particles both before and after decay. In particular, the interference
between the contributions involving the decaying $W$'s depends on the decay
width. We rev... | 1993-05-26 | 2009-10-22 | [
"hep-ph"
] | Yu.L. Dokshitzer, V.A. Khoze, L.H. Orr, and W.J. Stirling |
hep-ph/9305322 | Mapping the x dependence of the axial anomaly in polarised deep
inelastic scattering | We discuss the role of the U(1) axial anomaly in the spin structure functions
of the nucleon, with particular emphasis on how one might determine its x
dependence in present and future deep inelastic scattering experiments. We
focus on the C-odd spin structure function g3 and also the deuteron structure
function g1^d. | 1993-05-26 | 2010-02-17 | [
"hep-ph"
] | S.D. Bass (Cavendish Lab., Cambridge, U.K.) and A. W. Thomas (Univ.
Adelaide, Australia) |
hep-ph/9305325 | Evidence for Observation of Color Transparency in Proton Nucleus
Collisions | We introduce a data analysis procedure for color transparency experiments
which is considerably less model dependent than the transparency ratio method.
The new method is based on fitting the shape of the A dependence of the nuclear
cross section at fixed momentum transfer to determine the effective attenuation
cross s... | 1993-05-26 | 2007-05-23 | [
"hep-ph"
] | Pankaj Jain and John P. Ralston |
hep-ph/9305318 | Rigid String From QCD Lagrangian | Starting from the 4-dimensional gluodynamics, we discuss the statistical
ensemble of torons ( the toron is a self-dual solution with fractional
topological number; it can be understood as a point defect) which interact
strongly. It is shown that the effective Lagrangian describing this statistical
ensemble possesses th... | 1993-05-26 | 2008-02-03 | [
"hep-ph",
"hep-th"
] | A Zhitnitsky |
hep-ph/9305323 | Gauge symmetry and the EMC spin effect | We emphasise the EMC spin effect as a problem of symmetry and discuss the
renormalisation of the $C=+1$ axial tensor operators. This involves the
generalisation of the Adler-Bell-Jackiw anomaly to each of these operators. We
find that the contribution of the axial anomaly to the spin dependent structure
function $g_1 (... | 1993-05-26 | 2009-10-22 | [
"hep-ph"
] | S.D. Bass (Cavendish Lab., Cambridge, U.K.) |
hep-ph/9305321 | On Gauge Invariance of Breit-Wigner Propagators | We present an approach to bosonic ($Z^0, W^{\pm}$) as well as fermionic
(top-quark) Breit-Wigner propagators which is consistent with gauge invariance
arguments. In particular, for the $Z^0$-boson propagator we extend previous
analyses and show that the part proportional to $k_{\mu} k_{\nu}/M^2$ must be
modified near t... | 1993-05-26 | 2009-10-22 | [
"hep-ph"
] | M. Nowakowski and A. Pilaftsis |
hep-ph/9305326 | Evidence for Observation of Color Transparency in pa Collisions Using
Global Fit and Scaling Law Analysis | We review a new systematic data analysis procedure for color transparency
experiments and its application to the proton nucleus scattering experiment.
The method extracts the hard scattering rate as well as the survival
probability for the protons travelling through the nucleus directly from the
data. The method requir... | 1993-05-26 | 2007-05-23 | [
"hep-ph"
] | Pankaj Jain and John P. Ralston |
hep-ph/9305319 | Proton structure function at small Q^2 | A fit is made to the data for the proton structure function up to Q^2=10
GeV^2, including the real gamma p total cross-section. It is economical and
simple, and its form is motivated by physical principles. It is extrapolated
down to very small values of x. Data for the ratio (nu W_2^n/nu W_2^p) are also
fitted. A FORT... | 1993-05-26 | 2009-10-22 | [
"hep-ph"
] | A Donnachie and P V Landshoff |
hep-ph/9305320 | A Dynamical Resolution of the Sigma Term Puzzle | We propose a resolution of the puzzle posed by the discrepancy between the
pion-nucleon sigma term inferred from pion-nucleon scattering, and that deduced
from baryon mass splittings using the Zweig rule. We show that there is a
significant hypercharge-dependent dynamical contribution to baryon masses, not
hitherto inc... | 1993-05-26 | 2009-10-22 | [
"hep-ph"
] | Richard D. Ball, Stefano Forte and Jason Tigg |
hep-ph/9305317 | Natural Color Transparency in High Energy (p,pp) Reactions | New parameter free calculations including a variety of necessary kinematic
and dynamic effects show that the results of BNL $(p,2p)$ measurements are
consistent with the expectations of color transparency. | 1993-05-25 | 2009-09-25 | [
"hep-ph",
"nucl-th"
] | B.K. Jennings (Triumf, 4004 Wesbrook Mall, Vancouver, B.C., V6T 2A3,
Canada) and G.A. Miller (Department of Physics, FM-15, University of
Washington, Seattle, WA, USA) |
hep-ph/9305316 | Search for Physics Beyond the Standard Model | We survey some recent ideas and progress in looking for particle physics
beyond the Standard Model, connected by the theme of Supersymmetry (SUSY). We
review the success of SUSY-GUT models, the expected experimental signatures and
present limits on SUSY partner particles, and Higgs phenomenology in the
minimal SUSY mod... | 1993-05-25 | 2015-06-25 | [
"hep-ph"
] | V. Barger and R.J.N. Phillips |
hep-ph/9305312 | Symmetric Textures | I present an algorithm in the search for symmetric textures in the quark
Yukawa matrices. This is based on a talk at the Coral Gables conference in
January 1993. I include the macro tables2.tex for making tables, and use the
Santa Barbara jnl and reforder macros. | 1993-05-25 | 2007-05-23 | [
"hep-ph"
] | P. Ramond |
hep-ph/9305313 | Total and Jet Photoproduction Cross Sections at HERA | We show that the recent measurements of the total photoproduction cross
section at HERA energies [1] are in agreement with our earlier prediction based
on high-energy hadronic structure of the photon in the QCD minijet-type model
[2]. We discuss an improved calculation of the photoproduction cross section,
in which the... | 1993-05-25 | 2007-05-23 | [
"hep-ph"
] | Ina Sarcevic |
hep-ph/9305310 | Supersymmetric QCD corrections to quark pair production in e+ e-
annihilation | We calculate supersymmetric QCD corrections (squark/gluino loops) to quark
pair production in e+ e- annihilation, allowing for mixing between left- and
right-handed squarks and taking into account the effects of nonzero quark
masses. Corrections to the Z boson partial widths are generally small and
positive, except in ... | 1993-05-25 | 2009-10-22 | [
"hep-ph"
] | A. Djouadi, M. Drees and H. K\"onig |
hep-ph/9305315 | Heavy Quark Fragmentation to Baryons Containing Two Heavy Quarks | We discuss the fragmentation of a heavy quark to a baryon containing two
heavy quarks of mass $m_Q\gg\Lambda_{\rm QCD}$. In this limit the heavy quarks
first combine perturbatively into a compact diquark with a radius small
compared to $1/\Lambda_{\rm QCD}$, which interacts with the light hadronic
degrees of freedom ex... | 1993-05-25 | 2010-03-25 | [
"hep-ph"
] | Adam F. Falk, Michael Luke, Martin J. Savage and Mark B. Wise |
hep-ph/9305311 | Nucleon Mass Corrections to the $p \leftrightarrow n$ Rates During Big
Bang Nucleosynthesis | The thermal rates for converting neutrons to protons, and vice versa, are
calculated, including corrections of order 1 MeV divided by a nucleon mass. The
results imply that the primodial helium abundance predicted for big bang
nucleosynthesis has been systematically underestimated by about $\delta Y_4 =
0.0012$, i.e., ... | 1993-05-25 | 2009-09-25 | [
"hep-ph",
"astro-ph"
] | David Seckel |
hep-ph/9305314 | QCD Corrections to Hadronic $W\gamma$ Production with Non-standard
$WW\gamma$ Couplings | The process $p \pbar \rightarrow W^{\pm}\gamma + X \rightarrow \ell^\pm \nu
\gamma + X$ is calculated to ${\cal O}(\alpha_s)$ for general $CP$ conserving
$WW\gamma$ couplings. At the Tevatron center of mass energy, the QCD
corrections to $W\gamma$ production are modest, and the Born and inclusive
${\cal O}(\alpha_s)$ c... | 1993-05-25 | 2009-10-22 | [
"hep-ph"
] | U. Baur, T. Han, and J. Ohnemus |
hep-ph/9305309 | Measuring transversity densities in singly polarized hadron-hadron and
lepton-hadron collisions | We show how the transverse polarization of a quark initiating a jet can be
probed by the azimuthal distribution of two hadrons (of large $z$) in the jet.
This permits a twist 2 asymmetry in hard processes when only one of the initial
particles is polarized transversely. Applications to hadron-hadron and
lepton-hadron s... | 1993-05-24 | 2011-07-19 | [
"hep-ph"
] | John C. Collins, Steve F. Heppelmann, Glenn A. Ladinsky |
hep-ph/9305306 | Analysis of Data on Polarized Lepton-Nucleon Scattering | We re-analyze data on deep inelastic polarized lepton-nucleon scattering,
with particular attention to testing the Bjorken sum rule and estimating the
quark contributions to the nucleon spin. Since only structure function data at
fixed $Q^2$ can be used to test sum rules, we use E142 asymmetry measurements
and unpolari... | 1993-05-24 | 2009-09-25 | [
"hep-ph"
] | John Ellis and Marek Karliner |
hep-ph/9305302 | The Energy Density of a Gas of Photons Surrounding a Spherical Mass $M$
at a Non-Zero Temperature | The equations determining the energy density $\rho$ of a gas of photons in
thermodynamic equilibrium with a spherical mass $M$ at a non-zero temperature
$T_s>0$ is derived from Einstein's equations.
It is found that for large $r$, $\rho \sim 1/r^2$ where the proportionality
constant is a {\it fundamental constant\/} ... | 1993-05-24 | 2007-05-23 | [
"hep-ph",
"astro-ph",
"gr-qc"
] | Achilles D. Speliotopoulos |
hep-ph/9305308 | Induced Charge of Neutrinos in a Medium | Neutrinos can polarize a medium due to their weak interaction. This can
manifest itself as an effective induced charge of the neutrino. We show how it
is related to the Debye screening length in a plasma, first using the results
of the 1-loop calculation of the neutrino electromagnetic vertex and then in
general to all... | 1993-05-24 | 2014-11-17 | [
"hep-ph"
] | Jose F. Nieves, Palash B. Pal |
hep-ph/9305304 | The Subleading Isgur-Wise Form Factor $\xi_3(v\cdot v')$ and its
Implications for the Decays $\bar B\to D^{(*)}\ell\,\bar\nu$ | We calculate, in the framework of QCD sum rules and to next-to-leading order
in perturbation theory, the universal function $\xi_3(v\cdot v')$ which appears
at order $1/m_Q$ in the heavy quark expansion of meson weak decay form factors.
We find that radiative corrections of order $\alpha_s$ are very important. Over
the... | 1993-05-24 | 2010-11-01 | [
"hep-ph"
] | Z. Ligeti, Y. Nir, and M. Neubert |
hep-ph/9305303 | The Asymptotic Form of the Energy Density of Weakly Interacting
Particles in a Static, Spherical Geometry | The asymptotic form of the energy density for a gas of particles surrounding
a sphere of mass $M$ and radius $R$ is studied using Einstein's equations. It
is shown that if the pressure of the gas $p$ varies linearly with the energy
density $\rho$ for small $\rho$, then $\rho\sim 1/r^2$ for large $r$. | 1993-05-24 | 2007-05-23 | [
"hep-ph",
"astro-ph",
"gr-qc"
] | Achilles D. Speliotopoulos |
hep-ph/9305305 | QCD Matching Conditions at Thresholds | The use of MS-like renormalization schemes in QCD requires an implementation
of nontrivial matching conditions across thresholds, a fact often overlooked in
the literature. We shortly review the use of these matching conditions in QCD
and check explicitly that the prediction for $\alpha_s(M_Z)$, obtained by
running the... | 1993-05-24 | 2009-10-22 | [
"hep-ph"
] | German Rodrigo and Arcadi Santamaria |
hep-ph/9305307 | Axions, Monopoles and Cosmic String | We are discussing some aspects of the magnetic monopoles and cosmic strings
interactions with axion domain walss and membranes. The monopole moving through
an axion domain wall is transformed into a monopole bag - the state with a dyon
quantum number, but smaller mass. In the case of an axion membrane the passing
monop... | 1993-05-24 | 2007-05-23 | [
"hep-ph",
"hep-th"
] | Ian I Kogan |
hep-ph/9305297 | Renormalizabilty of TH Heavy Quark Effective Theory | We show that the Heavy Quark Effective Theory is renormalizable
perturbatively. We also show that there exist renormalization schemes in which
the infinite quark mass limit of any QCD Green function is exactly given by the
corresponding Green function of the Heavy Quark Effective Theory. All this is
accomplished while ... | 1993-05-21 | 2009-10-22 | [
"hep-ph"
] | E. Bagan & P. Gosdzinsky |
hep-ph/9305300 | Quasipotential in the Fourth Order of Perturbation Theory. Unequal mass
case | The quasipotential in the fourth order of perturbation theory is calculated
in the Coulomb gauge for the unequal mass particles. It could be used for the
future calculations of energy spectra in two-body systems. | 1993-05-21 | 2007-05-23 | [
"hep-ph"
] | Natalia A. Boikova, Valeri V. Dvoeglazov, Yuri N. Tyukhtyaev, Rudolf
N. Faustov |
hep-ph/9305295 | On "Electromagnetic Potential Vectors and Spontaneous Symmetry Breaking" | The appearance of terms, which are analogous to ones required for symmetry
breaking, in Lagrangian of Ref. [1] is shown to be caused by gauge invariance
of quantum electrodynamics (QED) and by inaccuracy of the cited author in the
choice of canonical variables. These terms do not have physical significance
within moder... | 1993-05-21 | 2018-11-05 | [
"hep-ph",
"hep-th"
] | V. V. Dvoeglazov |
hep-ph/9305294 | A Possible Way of Connecting the Grassmann Variables and the Number of
Generation | We construct a Left-Right symmetric model in which the number of generation
is related to Grassmann variables. We introduce two sets of complex Grassmann
variables ($\theta^1_q$,$\theta^2_q$), ($\theta^1_l$, $\theta ^2_l$) and
associate each variable with left- and right-handed quark and lepton fields,
respectively. Ex... | 1993-05-21 | 2009-10-22 | [
"hep-ph"
] | Xiao-Gang He |
hep-ph/9305296 | QED-Induced Rapidity-Gap Events at the Z Peak | We study rapidity-gap events in $e^+e^-$ annihilation at the Z boson peak
initiated by the emission of a virtual photon. This mechanism is suppressed by
the QED coupling constant, but it is enhanced due to a large propagator term
from the virtual photon. For typical kinematics, we find a smaller event rate
than analogo... | 1993-05-21 | 2009-09-11 | [
"hep-ph"
] | Hung Jung Lu, Stanley J. Brodsky and Valery A. Khoze |
hep-ph/9305298 | Chiral Perturbation Theory | The basic ideas and power counting rules of chiral perturbation theory are
discussed. The formalism of velocity dependent fields for baryons, and for
hadrons containing a heavy quark, is explained. (Invited Talk, 1993 QCD
Rencontres de Moriond) | 1993-05-21 | 2007-05-23 | [
"hep-ph"
] | Aneesh V. Manohar |
hep-ph/9305299 | Observation of High Energy Quark-Antiquark Elastic Scattering with
Mesonic Exchange | We studied the high energy quark anti-quark elastic scattering with an
exchange of a mesonic state in the $t$ channel with $-t/\Lambda_{QCD}^{2} \gg
1$. Two methods are proposed to eliminate the strong background from bare
pomeron, reggized gluon and odderon exchange. The feasibility of measuring
mesonic reggeon exchan... | 1993-05-21 | 2015-06-25 | [
"hep-ph"
] | Wai-Keung Tang |
hep-ph/9305301 | Semiclassical transition in \phi^4 theory | We have shown an example of semiclassical transition in $\phi^{4}$ theory
with positive coupling constant. This process can be described by the classical
$O(4)$-invariant solution, considered on a contour in the complex time plane.
The transition is technically analogous to the one-instanton transition in the
electrowe... | 1993-05-21 | 2010-11-01 | [
"hep-ph",
"hep-th"
] | Alexander Kyatkin |
hep-ph/9305291 | Two Dimensional Field Theory Description of Disoriented Chiral
Condensate | We consider the effective $1+1$-dimensional chiral theory describing
fluctuations of the order parameter of the Disoriented Chiral Condensate (DCC)
which can be formed in the central rapidity region in a relativistic
nucleus-nucleus or nucleon-nucleon collisions at high energy. Using
$1+1$-dimensional reduction of QCD ... | 1993-05-20 | 2016-09-01 | [
"hep-ph",
"hep-th"
] | Ian I. Kogan |
hep-ph/9305292 | Effective Lagrangians and Triple Boson Couplings | I review the use of effective lagrangians in describing the physics beyond
the standard model, several theoretical and practical aspects are discussed. It
is argued that the only situations where new physics can be observed
corresponds to cases where the standard model cntributions are extremely
suppressed and where hi... | 1993-05-20 | 2007-05-23 | [
"hep-ph"
] | Jose Wudka (UC Riverside) |
hep-ph/9305293 | Magnetic Moments of the Baryon Decuplet in a Relativistic Quark Model | The magnetic moments of the baryon decuplet are calculated in a relativistic
constituent quark model using the light-front formalism. Of particular interest
are the magnetic moments of the $\Omega^-$ and $\Delta^{++}$ for which new
recent experimental measurements are available. Our calculation for the
magnetic moment ... | 1993-05-20 | 2009-10-22 | [
"hep-ph"
] | Felix Schlumpf |
hep-ph/9305286 | In Search for (QUANTUM) Color Transparency | Color transparency (CT) is an effect of suppression of nuclear shadowing of
hard reactions, closely related to the color screening. A brief review of
theoretical development and experimental search for CT, failed and successful,
are presented. A special emphasis is made on a quantum-mechanical nature of CT,
as opposed ... | 1993-05-19 | 2007-05-23 | [
"hep-ph"
] | Boris Kopeliovich |
hep-ph/9305287 | Supersymmetric Signals in $e^-e^-$ Collisions | We consider the production and decay of selectrons and charginos in $e^-e^-$
collisions. The advantage over usual $e^+e^-$ collisions is the very low level
of standard model backgrounds which should make the discovery of selectrons or
charginos relatively straightforward. The use of polarized beams provides an
addition... | 1993-05-19 | 2009-10-22 | [
"hep-ph"
] | Frank Cuypers, Geert Jan van Oldenborgh and Reinhold R\"uckl |
hep-ph/9305289 | $b \rightarrow s \gamma$ and $B_s \rightarrow \mu^+ \mu^-$ in Extended
Technicolor Models | The rates of the rare flavor-changing processes, $b \rightarrow s \gamma$ and
$B_s \rightarrow \mu^+ \mu^-$ are estimated in extended technicolor models with
and without a GIM mechanism. We find the $b \rightarrow s \gamma$ rate in ETC
models with a GIM mechanism to be at most slightly larger than the standard
model ra... | 1993-05-19 | 2009-09-15 | [
"hep-ph"
] | Lisa Randall and Raman Sundrum |
hep-ph/9305288 | Phenomenological Implications of the m_t RGE Fixed Point for SUSY Higgs
Boson Searches | In minimal SUSY-GUT models with $M_{SUSY}\alt 1$ TeV, the renormalization
group equations have a solution dominated by the infrared fixed point of the
top Yukawa coupling. This fixed point predicts $m_t\simeq (200\; {\rm GeV})\sin
\beta $; combined with the LEP results it excludes $m_t\alt 130$ GeV. For $m_t$
in the ra... | 1993-05-19 | 2009-10-22 | [
"hep-ph"
] | V. Barger, M. S. Berger, P. Ohmann, and R.J.N. Phillips |
hep-ph/9305290 | CP Violation and Leptogenesis | Recently a model of chaotic inflation was proposed, where the right handed
sneutrinos drive the baryogenesis. We study some of the details of the model,
particularly the aspect of CP violation, and determine the number of right
handed sneutrinos required for the viability of such models. | 1993-05-19 | 2010-11-01 | [
"hep-ph"
] | Andy Acker, Hisashi Kikuchi, Ernest Ma and Utpal Sarkar |
hep-ph/9305280 | Multi-W(Z) Production in High-Energy Collisions? | There exists the possibility that the cross-section for the nonperturbative
production of many, ${\cal O}(\alpha_W^{-1} \simeq 30 )$, weak gauge bosons may
be as large as ${\cal O}(100\ {\rm pb}\ -\ 10\ \mu$b$)$ above a parton-parton
center-of-mass threshold in the range $2.4\ -\ 30$ TeV. We review the
theoretical cons... | 1993-05-18 | 2007-05-23 | [
"hep-ph",
"astro-ph"
] | Andreas Ringwald |
hep-ph/9305283 | Spin Structure of the Pion in a Light-Cone Representation | The spin structure of the pion is discussed by transforming the wave function
for the pion in the naive quark model into a light-cone representation. It is
shown that there are higher helicity ($\lambda_{1}+\lambda_{2}=\pm1$) states in
the full light-cone wave function for the pion besides the ordinary helicity
($\lamb... | 1993-05-18 | 2015-06-25 | [
"hep-ph"
] | Bo-Qiang Ma |
hep-ph/9305284 | Photon neutrino scattering | The cross section for photon neutrino scattering is calculated in the
standard model assuming that the neutrino is massless and that the center of
mass energy is small compared to any charged lepton mass. Although the
scattered photons can acquire a (parity violating) circular polarization of
order unity, the cross sec... | 1993-05-18 | 2009-10-22 | [
"hep-ph"
] | Duane A. Dicus and Wayne W. Repko |
hep-ph/9305285 | Electrweak Z-string And $\tan\beta$ | In the standard model with two Higgs doublets it is shown that the existence
of the electroweak Z-string in general requires the same characteristic length
for the two Higgs fields as well as a specific ratio of the two Higgs vacuum
expectation values, i.e. $\tan\beta$. This ratio can be determined in terms of
the coup... | 1993-05-18 | 2007-05-23 | [
"hep-ph"
] | HoSeong La |
hep-ph/9305281 | Hyperons as Solitons in Chiral Quark Model | The paper describes the quantization of the SU(3) smibosonized
Nambu-Jona-Lasinio model and results for mass splittings, including isospin
splittings, and axial couplings. The agreement with the data is surprisingly
good. | 1993-05-18 | 2009-09-25 | [
"hep-ph"
] | M. Prasza{\L}OWICZ, A. Blotz and K. Goeke (Ruhr-University Bochum,
Germany) |
hep-ph/9305282 | Squark Contributions to Higgs Boson Masses in the Next--to--Minimal
Supersymmetric Standard Model | Within the context of an effective potential formalism we calculate the
contribution to Higgs boson masses in the next--to--minimal supersymmetric
standard model from squark loops. We then supplement a previously performed
renormalisation group analysis of the Higgs sector of this model with these
results in order to d... | 1993-05-18 | 2009-10-22 | [
"hep-ph"
] | T.Elliott, S.F.King, P.L.White |
hep-ph/9305273 | $\O(\GF^2\Mt^4)$ Electroweak Radiative Corrections to the $\PZ\Pb\Pbbar$
Vertex | The leading heavy-top two-loop corrections to the \Zbb~vertex are determined
from a direct evaluation of the corresponding Feynman diagrams in the large
\Mt~limit. %The calculation is done in the naive %dimensional regularization
scheme with anticommuting $\ga_5$. The leading one-loop top-mass effect is
enhanced by $[1... | 1993-05-17 | 2009-09-25 | [
"hep-ph"
] | A. Denner, W. Hollik and B. Lampe |
hep-ph/9305279 | QCD Corrections to Production of Higgs Pseudoscalars | Models of electroweak symmetry breaking with more than a single doublet of
Higgs scalars contain a neutral pseudoscalar boson. The production of such a
pseudoscalar in hadron collisions proceeds primarily via gluon fusion through a
top-quark loop (except for those models in which the pseudoscalar coupling to
bottom qua... | 1993-05-17 | 2011-01-13 | [
"hep-ph"
] | Russel P. Kauffman and Wendy Schaffer |
hep-ph/9305274 | Baryon Asymmetry of the Universe in the Minimal Standard Model | We calculate the baryon asymmetry of the Universe which would arise during a
first order electroweak phase transition due to minimal standard model
processes. It agrees in sign and magnitude with the observed baryonic excess,
for resonable KM parameters and m$_t$ in the expected range, and plausible
values of bubble ve... | 1993-05-17 | 2010-11-01 | [
"hep-ph",
"astro-ph"
] | Glennys R. Farrar and M. E. Shaposhnikov |
hep-ph/9305275 | Baryon Asymmetry of the Universe in the Standard Model | We study the interactions of quarks and antiquarks with the changing Higgs
field during the electroweak phase transition, including quantum mechanical and
some thermal effects, with the only source of CP violation being the known CKM
phase. The magnitude and sign of the predicted BAU agrees with the observed
value, wit... | 1993-05-17 | 2010-11-01 | [
"hep-ph",
"astro-ph"
] | Glennys R. Farrar and M. E. Shaposhnikov |
hep-ph/9305276 | On the Treatment of Neutrino Oscillations Without Resort to Weak
Eigenstates | We discuss neutrino oscillations in the framework of the quantum field theory
without introducing the concept of neutrino weak eigenstates. The external
particles are described by wave packets and the different mass eigenstate
neutrinos propagate between the production and detection interactions, which
are macroscopica... | 1993-05-17 | 2009-10-22 | [
"hep-ph"
] | C. Giunti, C.W. Kim and J.A. Lee |
hep-ph/9305277 | Finding the Leptonic $WW$ Decay Mode of a Heavy Higgs Boson | We reanalyze the extraction of the heavy Higgs boson signal $H\rightarrow
W^+W^-\rightarrow \bar\ell\nu,\ell\bar\nu$ $(\ell=e\hbox{ or }\mu)$ from the
Standard Model background at hadron supercolliders, taking into account revised
estimates of the top quark background. With new acceptance criteria the
detection of the ... | 1993-05-17 | 2016-09-01 | [
"hep-ph"
] | V. Barger, Kingman Cheung, T. Han and D. Zeppenfeld |
hep-ph/9305278 | Topologically Stable Electroweak Flux Tube | We show that for a large range of parameters in a $SU(2)_L\times U(1)$
electroweak theory with two Higgs doublets there may exist classically stable
flux tubes of Z boson magnetic field. In a limit of an extra global $\tilde
U(1)$ symmetry, these flux-tubes become topologically stable. These results are
automatically v... | 1993-05-17 | 2009-10-22 | [
"hep-ph"
] | Gia Dvali and Goran Senjanovi\'c |
hep-ph/9305272 | Constraints on CP violation in the Higgs sector from the $\rho$
parameter | We discuss the relation between the CP symmetry and the custodial $SU(2)$
symmetry in the Higgs sector. In particular, we show that CP violation in the
Higgs-gauge sector is allowed only if the custodial $SU(2)$ symmetry is broken.
We exploit these facts to constrain CP violation using the experimental bounds
on $\rho-... | 1993-05-15 | 2010-11-01 | [
"hep-ph"
] | Alex Pomarol and Roberto Vega |
hep-ph/9305268 | A Fermion Mass Matrix Ansatz for the Fipped SU(5) Model | A fermion mass matrix ansatz is proposed in the context of Grand Unified
Supersymmetric Theories (GUTs). The fermion mass matrices are evolved down to
the electroweak scale by solving the renormalization group equations for the
gauge and Yukawa couplings. Eight inputs are introduced at the GUT scale to
predict the 13 a... | 1993-05-14 | 2008-02-03 | [
"hep-ph"
] | G.K. Leontaris |
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