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/9408331 | {$SU(3)$} breaking in {$\bar{B}/D\rar Kl\bar \nu$} decays and value of
{$V_{cd}/V_{cs}$}} | We determine the $SU(3)$-breaking effects in the $\bar{B}/D \rar Kl\bar \nu$
decays from the ratio of the $\bar{B}/D\rar Kl\bar \nu$ over the $\bar{B}/D
\rar \pi l\bar \nu$ semileptonic form factors using a {\it semi-analytic}
expression based on QCD spectral sum rules. We obtain $f_+^{\bar{B}\rar
K}(0)/f_+^{\bar{B} \r... | 1994-08-20 | 2010-11-01 | [
"hep-ph",
"hep-lat"
] | S. Narison |
hep-ph/9408336 | SU(2)-Flavor-Symmetry Breaking in Nuclear Antiquark Distributions | SU(2)-flavor-symmetry breaking in antiquark distributions of the nucleon was
suggested by the New Muon Collaboration (NMC) in deep inelastic muon
scattering. As an independent test, Drell-Yan data for the tungsten target have
been used for examining the asymmetry. We investigate whether there exists
significant modific... | 1994-08-20 | 2009-10-28 | [
"hep-ph",
"nucl-th"
] | S. Kumano (Saga University and the ECT*) |
hep-ph/9408330 | The $D^0\bar{D}^0$ Mixing Search --- Current Status and Future Prospects | The search for $D^0\bar{D}^0$ mixing carries a large discovery potential for
new physics since the $D^0\bar{D}^0$ mixing rate is expected to be very small
in the Standard Model. The past decade has seen significant experimental
progress in sensitivity, from 20\% down to 0.37\%. This paper discusses the
techniques, curr... | 1994-08-20 | 2007-05-23 | [
"hep-ph"
] | Tiehui (Ted) Liu |
hep-ph/9408328 | A Precise Determination of $\alpha_s$ from Lattice QCD | We present a new determination of the QCD strong coupling constant based on
precise lattice calculations of the $\Upsilon$ spectrum. The largest systematic
uncertainty in previous such determinations resulted from the absence of vacuum
polarization from light quarks. We substantially reduce this error by including
two ... | 1994-08-20 | 2009-10-28 | [
"hep-ph",
"hep-lat"
] | C. T. H. Davies, K. Hornbostel, G. P. Lepage, A. Lidsey, J.
Shigemitsu, J. Sloan |
hep-ph/9408325 | W Plus Heavy Quark Production at the Tevatron | We summarize the motivations for and the status of the calculation of the $W
+$ heavy quark production process in $p \bar p$ colliders to Next-to-Leading
Order in QCD. This process can be used to constrain the strange quark
distribution function at high $Q^2$ at the Tevatron, and also to study the
bottom content of $W+... | 1994-08-19 | 2019-08-17 | [
"hep-ph"
] | W. T. Giele, S. Keller, and E. Laenen |
hep-ph/9408327 | Can an Infrared-vanishing Gluon propagator Confine Quarks? | It is shown that the solution of the quark Dyson-Schwinger equation in QCD
obtained with a gluon propagator of the form $D(q) \sim q^2/[q^4+b^4]$ and a
quark-gluon vertex that is free of kinematic singularities does not describe a
confined particle and that there is always a value of $b^2 = b^2_c$ such that
chiral symm... | 1994-08-19 | 2008-02-03 | [
"hep-ph"
] | Craig D. Roberts |
hep-ph/9408322 | Non-universal Soft Scalar Masses in Superstring Theories | We study soft scalar masses comparing with gaugino masses in 4-dimensional
string models. In general non-universal soft masses are derived in orbifold
models. We give conditions on modular weights to lead to the large
non-universality in the soft scalar masses. This non-universality is applied to
the unification of the... | 1994-08-19 | 2009-10-28 | [
"hep-ph"
] | T.Kobayashi, D.Suematsu, K.Yamada and Y.Yamagishi |
hep-ph/9408324 | False Vacuum Chaotic Inflation: The New Paradigm? | Recent work is reported on inflation model building in the context of
supergravity and superstrings, with special emphasis on False Vacuum (`Hybrid')
Chaotic Inflation. Globally supersymmetric models do not survive in generic
supergravity theories, but fairly simple conditions can be formulated which do
ensure successf... | 1994-08-19 | 2009-10-28 | [
"hep-ph",
"astro-ph",
"hep-th"
] | David H. Lyth and Ewan D. Stewart |
hep-ph/9408321 | Gravitino Decay into a Neutrino and a Sneutrino in the Inflationary
Universe | Gravitino produced in the inflationary universe are studied. When the
gravitino decays into a neutrino and a sneutrino, the emitted high energy
neutrinos scatter off the background neutrinos and produce charged leptons
(mainly electrons and positrons), which cause the electro-magnetic cascades and
produce many soft pho... | 1994-08-19 | 2009-10-28 | [
"hep-ph",
"astro-ph"
] | M. Kawasaki and T. Moroi |
hep-ph/9408326 | Stranger in the Light: The Strange Vector Form Factors of the Nucleon | A model combining vector meson dominance, $\omega - \phi$ mixing and a kaon
cloud contribution is used to estimate the strangeness vector form factors of
the nucleon in the momentum range of the planned measurements at MIT-Bates and
CEBAF. We compare our results with some other theoretical estimates and discuss
the nuc... | 1994-08-19 | 2009-09-25 | [
"hep-ph"
] | Hilmar Forkel, Marina Nielsen, Xuemin Jin and Thomas D. Cohen |
hep-ph/9408323 | Threshold Pion Photo- and Electroproduction in Chiral Perturbation
Theory | I present some recent results on neutral pion photo- and electroproduction in
the threshold region and discuss the low energy theorem for $E_{0+}$ and some
novel ones for the $P$-waves. I also study the two-pion production process
$\gamma N \to \pi \pi N$ from which complementary information can be gained. | 1994-08-19 | 2009-10-28 | [
"hep-ph",
"nucl-th"
] | V. Bernard |
hep-ph/9408320 | Renormalizing Coupled Scalars with a Momentum Dependent Mixing Angle in
the MSSM | The renormalization of a system of coupled scalars fields is analyzed. By
introducing a momentum dependent mixing angle we diagonalize the inverse
propagator matrix at any momentum $p^2$. The zeros of the inverse propagator
matrix, \ie, the physical masses, are then calculated keeping the full momentum
dependence of th... | 1994-08-18 | 2007-05-23 | [
"hep-ph"
] | Marco Aurelio Diaz |
hep-ph/9408318 | Low $Q^2$, Low $x$ Region in Electroproduction $-$ an Overview | We summarise existing experimental and theoretical knowledge on the structure
function $F_2$ in the region of low $Q^2$ and low $x$. The constraints on the
behaviour of structure functions in the limit $Q^2=0$ are listed.
Phenomenological low $Q^2$ parametrisations of the $F_2$ are collected and
their dynamical content... | 1994-08-18 | 2009-09-25 | [
"hep-ph"
] | Barbara Badelek and Jan Kwiecinski |
hep-ph/9408314 | Hierarchical Mass Matrices in a Minimal SO(10) Grand Unification II | We continue to investigate the minimal SO(10)xU(1)_H model which we proposed
recently. Renormalization group analysis of the model results in natural
predictions of quark-lepton masses and Kobayashi-Maskawa matrix along with
neutrino mixings adequate for solar neutrino oscillation. | 1994-08-18 | 2010-11-01 | [
"hep-ph"
] | Masako Bando, Izawa Ken-Iti and Tomohiko Takahashi |
hep-ph/9408316 | Energy correlation and asymmetry of secondary leptons in $H\to t\bar t$
and $H\to W^+W^-$ | We study the energy correlation of charged leptons produced in the decay of a
heavy Higgs particle $H\to t\bar t\to bl^+\nu_l\bar bl^-\bar{\nu}_l$ and $H\to
W^+W^-\to l^+\nu_ll^-\bar{\nu}_l.$ The possible influence of $CP$--violation in
the $Ht\bar t$ and $HW^+W^-$ vertices on the energy spectrum of the secondary
lepto... | 1994-08-18 | 2010-11-01 | [
"hep-ph"
] | T. Arens, U.D.J. Gieseler and L.M. Sehgal |
hep-ph/9408309 | Multiplicity Distributions in QCD at Very High Energies | Recent results in QCD on multiplicity distributions are briefly reviewed. QCD
is able to predict very tiny features of multiplicity distributions which
demonstrate that the negative binomial distribution (and, more generally, any
infinitely divisible distribution) is inappropriate for precise description of
experimenta... | 1994-08-18 | 2007-05-23 | [
"hep-ph"
] | I.M. Dremin |
hep-ph/9408313 | On the relation between the fermion pole mass and MSbar Yukawa coupling
in the standard model | We present the full one-loop correction to the relation between the running
MSbar Yukawa coupling, $\overline h_f(\mu)$, at some renormalization scale,
$\mu$, and the pole mass, $m_f$, of a fermion, $f$, in the standard model. Our
result complements previous analyses that included just the QCD correction to
this relati... | 1994-08-18 | 2009-10-28 | [
"hep-ph"
] | Ralf Hempfling and Bernd A. Kniehl |
hep-ph/9408319 | The Higgs Mass as the Discriminator of Electroweak Models | In the Minimal Supersymmetric Model (MSSM) and the Next to Minimal
Supersymmetric Model [(M+1)SSM], an upper bound on the lightest higgs mass can
be calculated. On the other hand, vacuum stability implies a lower limit on the
mass of the higgs boson in the Standard Model (SM). We find that a gap exists
for $m_t \stackr... | 1994-08-18 | 2009-10-28 | [
"hep-ph"
] | Marco A. Diaz, Tonnis A.ter Veldhuis, Thomas J. Weiler |
hep-ph/9408315 | Implications of Horizontal Symmetries on Baryon Number Violation in
Supersymmetric Models | The smallness of the quark and lepton parameters and the hierarchy between
them could be the result of selection rules due to a horizontal symmetry broken
by a small parameter. The same selection rules apply to baryon number violating
terms. Consequently, the problem of baryon number violation in Supersymmetry
may be s... | 1994-08-18 | 2011-04-08 | [
"hep-ph"
] | Valerie Ben-Hamo and Yosef Nir |
hep-ph/9408329 | Is a Light Gluino Compatible with N=1 Supersymmetry? | Using the new CLEO bound on the branching ratio of the decay mode
$b\longrightarrow s\gamma$ given by $1\times10^{-4}< B(b\longrightarrow
s\gamma)<4\times10^{-4}$ at 95\% c.l., and the experimental bounds on the
masses of the lightest chargino, the second lightest neutralino, and the light
CP-odd Higgs, we find that a ... | 1994-08-18 | 2009-09-25 | [
"hep-ph"
] | Marco Aurelio Diaz |
hep-ph/9408317 | Parton-Hadron Duality: Resonances and Higher Twists | We explore the physics of the parton-hadron duality in the nucleon structure
functions appearing in lepton-nucleon scattering. We stress that the duality
allows one to extract the higher-twist matrix elements from data in the
resonance region, and learn about the properties of resonances if these matrix
elements are kn... | 1994-08-18 | 2009-10-28 | [
"hep-ph"
] | Xiangdong Ji and Peter Unrau |
hep-ph/9408311 | Pascal Program for Generating Tables of SU(3) Clebsch-Gordan
Coefficients | Pascal routines are provided that generate representations of the group
$SU(3)$ and tabulate the Clebsch-Gordan coefficients in the products of
representations. | 1994-08-17 | 2010-11-01 | [
"hep-ph"
] | Thomas A. Kaeding |
hep-ph/9408310 | Theoretical Study of the Electroweak Interaction -- Present and Future | There have been several important recent developments in precision
electroweak tests. These include: the new LEP energy scan during the 1993 run;
the first high-precision results on the left-right asymmetry from the SLD
Collaboration at SLAC; the probable discovery of the top quark by the CDF
Collaboration at Fermilab ... | 1994-08-17 | 2007-05-23 | [
"hep-ph"
] | Paul Langacker |
hep-ph/9408312 | Compton Scattering by a Pion and off--Shell Effects | We consider Compton scattering by a pion in the framework of chiral
perturbation theory. We investigate off--shell effects in the s-- and
u--channel pole diagrams. For that purpose we perform a field transformation
which, in comparison with the standard Gasser and Leutwyler Lagrangian,
generates additional terms at ord... | 1994-08-17 | 2008-11-26 | [
"hep-ph",
"nucl-th"
] | S. Scherer and H. W. Fearing |
hep-ph/9408307 | Reliability of the Estimation of CP Asymmetries for Nonleptonic $B^{0} -
\bar{B}^{0}$ Decays into Non-CP-Eigen states | CP asymmetries for two-body-nonleptonic $B^{0} - \bar{B}^{0}$ decay into
non-CP-eigen states are calculated using two different methods: (i) Bauer,
Stech, and Wirbel factorization method to compute the decay amplitudes
directly; (ii) using $B^{0}, \bar{B}^{0}$ decay amplitude ratios to avoid the
direct computation of t... | 1994-08-17 | 2010-11-01 | [
"hep-ph"
] | D.S. Du, X.L. Li, and Z.J. Xiao |
hep-ph/9408308 | Additional Fermion Families and Precision Electroweak Data | The S,T, and U formalism for studying electroweak precision data has recently
been updated to include the effects of new light physics and within this
analysis the latest LEP and SLC data tightly constrain models of physics beyond
the Standard Model. We re-examine the constraints on additional strong and
weakly interac... | 1994-08-17 | 2009-10-28 | [
"hep-ph"
] | Nick Evans |
hep-ph/9408299 | How Disoriented Chiral Condensates Form: Quenching vs. Annealing | We demonstrate that semiclassical fluctuations, their relaxation, and the
chiral phase transition are automatically incorporated in the numerical
simulations of the classical equations of motion in the linear $\sigma$-model
when longitudinal and transverse expansions are included. We find that domains
of disoriented ch... | 1994-08-16 | 2009-10-28 | [
"hep-ph",
"nucl-th"
] | Masayuki Asakawa, Zheng Huang, and Xin-Nian Wang |
hep-ph/9408298 | Field Transformations and the Classical Equation of Motion in Chiral
Perturbation Theory | The construction of effective Lagrangians commonly involves the application
of the `classical equation of motion' to eliminate redundant structures and
thus generate the minimal number of independent terms. We investigate this
procedure in the framework of chiral perturbation theory. The use of the
'classical equation ... | 1994-08-16 | 2009-10-28 | [
"hep-ph",
"nucl-th"
] | S. Scherer and H. W. Fearing |
hep-ph/9408306 | Charm Quark Mass Dependence of QCD Corrections to Nonleptonic Inclusive
B Decays | We calculate the radiative corrections to the nonleptonic inclusive B decay
mode $b\rightarrow c\bar u d$ taking into account the charm quark mass.
Compared to the massless case, corrections resulting from a nonvanishing c
quark mass increase the nonleptonic rate by (4--8)\%, depending on the
renormalization point. As ... | 1994-08-16 | 2011-01-25 | [
"hep-ph"
] | E. Bagan, P. Ball, V.M. Braun, P. Gosdzinsky |
hep-ph/9408300 | Cumulants of QCD Multiplicity Distributions in Small Phase Space Bins | It is shown that, as functions of their rank, cumulants of QCD multiplicity
distributions in small phase space bins possess the quasi- oscillating behavior
similar to that found for them in the total rapidity range. First minimum moves
to lower ranks for smaller bins. For the total rapidity range, it moves to
higher ra... | 1994-08-16 | 2009-10-28 | [
"hep-ph"
] | I.M. Dremin |
hep-ph/9408301 | Fine Tuning in One-Higgs and Two-Higgs Standard Models | The fine-tuning principles are examined to predict the top-quark and
Higgs-boson masses. The modification of the Veltman condition based on the
compensation of vacuum energies is developed. It is implemented in the Standard
Model and in its minimal extension with two Higgs doublets. The top-quark and
Higgs-boson coupli... | 1994-08-16 | 2008-11-26 | [
"hep-ph"
] | A.A.Andrianov, R. Rodenberg and N.V.Romanenko |
hep-ph/9408296 | Detecting Tau Neutrino Oscillations at PeV Energies | It is suggested that a large deep underocean (or ice) neutrino detector,
given the presence of significant numbers of neutrinos in the PeV energy range
as predicted by various models of Active Galactic Nuclei, can make unique
measurements of the properties of neutrinos. It will be possible to observe the
existence of t... | 1994-08-16 | 2010-11-01 | [
"hep-ph",
"astro-ph",
"hep-ex"
] | John G. Learned and Sandip Pakvasa |
hep-ph/9408305 | Polarized twist-three distributions $g_T$ and $h_L$ and the role of
intrinsic transverse momentum | In a nonstandard way we split up the polarized quark distributions $g_T$ and
$h_L$ into their twist-two, quark-mass, and interaction-dependent parts,
emphasizing the sensitivity to quark intrinsic transverse momentum. We show how
to derive the Burkhardt-Cottingham sum rule in this approach and derive a
similar sum rule... | 1994-08-16 | 2009-09-25 | [
"hep-ph"
] | R.D. Tangerman and P.J. Mulders |
hep-ph/9408303 | Light Quark Dependence of the Isgur-Wise Function from QCD Sum rules | We study light quark dependence of the Isgur-Wise function for
$B_a\rightarrow D_a$ and $B_a\rightarrow D^{*}_a$ in the framework of QCD sum
rules. At zero recoil , all the Isgur-Wise functions equal as required by heavy
quark symmetry and at non-zero recoil, the Isgur-Wise function for $B_s$ decay
falls faster than th... | 1994-08-16 | 2011-07-19 | [
"hep-ph"
] | Tao Huang and Chuan-Wang Luo |
hep-ph/9408304 | The MSW solution to the solar neutrino problem for non-standard solar
models | The difficulties for non-standard solar models (NSSM) in resolving the solar
neutrino problem are discussed stressing the incompatibility of the
gallium--Kamiokande data, and of the gallium--chlorine data. We conclude that
NSSM's cannot explain simultaneously the results of any two of the solar
neutrino data (chlorine,... | 1994-08-16 | 2009-09-25 | [
"hep-ph",
"astro-ph"
] | V. Berezinsky, G. Fiorentini and M. Lissia |
hep-ph/9408302 | A General Supergravity Formalism for a Naturally Flat Inflaton Potential | A globally supersymmetric model of inflation will not work in a generic
supergravity theory because the higher order, nonrenormalisable supergravity
corrections destroy the flatness of the inflaton's potential. In this talk I
derive a form for the Kahler potential which eliminates these corrections if $
W = \partial W ... | 1994-08-16 | 2007-05-23 | [
"hep-ph",
"astro-ph",
"gr-qc",
"hep-th"
] | Ewan D. Stewart |
hep-ph/9408297 | QCD Corrections to $b \to s \gamma$ Decay in 2-Higgs Doublet Model | We give a more complete calculation of $b \to s\gamma $ decay in 2-Higgs
doublet model, including leading log QCD corrections from $m_{top}$ to $M_W$ in
addition to corrections from $M_{W}$ to $m_b$. The inclusive decay rate in the
first model is found to be suppressed 23\% comparing with the calculations
without the Q... | 1994-08-16 | 2009-10-28 | [
"hep-ph"
] | Cai-Dian Lu |
hep-ph/9408288 | Gauge fixing by unitary transformations in QCD | The unitary gauge fixing technique is applied to the QCD hamiltonian
formulated in terms of angular variables. It is demonstrated that in this
formulation projections on the physical Hilbert space are unnecessary to
separate physical and unphysical degrees of freedom. Therefore the application
of the unitary gauge fixi... | 1994-08-15 | 2009-10-28 | [
"hep-ph"
] | Dieter Stoll |
hep-ph/9408291 | The Nucleon Spin Problem | C o n t e n t s 1. Introduction. 2. General Relations. 3. Small $x$ Domain --
Regge Behaviour. 4. The Parton Model. 5. Sum Rules in the Parton Model. 6. QCD
Corrections to Sum Rules. 7. Nucleon Axial Coupling Constants. 8. The
Experimental Data on $g_1(x)$ and Their Interpretation. 9. Suggestions for
Future Experiments... | 1994-08-15 | 2015-06-25 | [
"hep-ph"
] | B.L. Ioffe |
hep-ph/9408290 | Theoretical Update on the Model-Independent Determination of |V_{cb}|
Using Heavy Quark Symmetry | In view of new precise measurements of the $\bar B\to D^*\ell \bar\nu$ decay
rate near zero recoil, we reconsider the theoretical uncertainties in the
extraction of $| V_{cb}|$ using heavy quark symmetry. In particular, we combine
our previous estimate of $1/m_Q^2$ corrections to the normalization of the
hadronic form ... | 1994-08-15 | 2010-11-01 | [
"hep-ph"
] | M. Neubert |
hep-ph/9408292 | The trace anomaly and the parton model | The trace anomaly is relevant to the renormalisation of the unpolarised
parton distributions. The role of the trace anomaly in F_2 is compared with the
axial anomaly in g_1. | 1994-08-15 | 2009-10-28 | [
"hep-ph"
] | S. D. Bass |
hep-ph/9408294 | E2 Strength in the Radiative Charmed Baryon Decay | The radiative decay $\Sigma_Q^* \rightarrow \Lambda_Q\gamma$ can have both
magnetic dipole (M1) and electric quadrupole (E2) components. In the heavy
quark limit $M_Q\rightarrow\infty$ the transition arises from the spin of the
light degrees of freedom changing from $s_l=1$ to $s_l=0$ and hence the E2
contribution vani... | 1994-08-15 | 2010-11-01 | [
"hep-ph"
] | Martin J. Savage |
hep-ph/9408286 | Evolution of the Disoriented Chiral Condensates in the Mean Field
Approximation | We study the dynamics of the chiral phase transition expected during the
expansion of the quark-gluon plasma produced in a high energy hadron or heavy
ion collision, using the $O(4)$ linear sigma model in the mean field
approximation. Starting from an approximate equilibrium configuration at an
initial proper time $\ta... | 1994-08-15 | 2008-02-03 | [
"hep-ph"
] | Yuval Kluger |
hep-ph/9408293 | Associate Sneutrino-Neutralino/Chargino Production at LEPxLHC | We examine for representative gaugino-higgsino mixing scenarios
sneutrino-neutralino and sneutrino-chargino production in deep inelastic
ep-scattering at the cm-energy of 1.8 TeV. The cross sections for
sneutrino-chargino production are more than one order of magnitude bigger than
those for sneutrino-squark production.... | 1994-08-15 | 2009-10-28 | [
"hep-ph"
] | T. Woehrmann, H. Fraas |
hep-ph/9408287 | Photonic production of B_c-mesons | The cross section of the $\gamma \gamma \rightarrow B_c(B_c^*) \bar b c $
process is calculated. It is shown that near threshold the pseudoscalar state
production is much suppressed with respect to the vector one. At large energies
their ratio becaims $\sigma(B_c^*)/sigma(B_c)\sim 4$. The process of heavy
quark recombi... | 1994-08-15 | 2009-10-28 | [
"hep-ph"
] | A.V.Berezhnoy, A.K.Likhoded and M.V.Shevlyagin |
hep-ph/9408295 | Amplitude Zeros and Rapidity Correlations in $W\gamma$ and $WZ$
Production in Hadronic Collisions | A comparative study of amplitude zeros in $W\gamma$ and $WZ$ production in
hadronic collisions is presented. The Standard Model amplitude for $q_1 \bar
q_2 \rightarrow W^\pm Z $ at the Born-level is shown to exhibit an approximate
zero located at $\cos\theta = (g^{q_1}_{-} + g^{q_2}_{-}) / (g^{q_1}_{-} -
g^{q_2}_{-})$ ... | 1994-08-15 | 2007-05-23 | [
"hep-ph"
] | U. Baur |
hep-ph/9408289 | The hamiltonian formulation of QCD in terms of angle variables | For the sake of eliminating gauge variant degrees of freedom we discuss the
way to introduce angular variables in the hamiltonian formulation of QCD. On
the basis of an analysis of Gauss' law constraints a particular choice is made
for the variable transformation from gauge fields to angular field variables.
The result... | 1994-08-15 | 2009-10-28 | [
"hep-ph"
] | Dieter Stoll |
hep-ph/9408285 | Colored Chaos | I review recent progress in our understanding of the basis of statistical
models for hadronic reactions and of the mechanisms of thermalization in
nonabelian gauge theories. (Invited talk given at the NATO Advanced Research
Workshop on Hot Hadronic Matter: Theory and Experiment, Divonne-le-Bains, June
1994) **Note: The... | 1994-08-14 | 2009-09-25 | [
"hep-ph",
"nucl-th"
] | Berndt Mueller |
hep-ph/9408283 | QCD Corrections to Charmless $b \to s$ Processes | QCD corrections to the penguin induced charmless inclusive $B$ decays are
performed to an improved leading-log approximation. For process $b \to s
q\overline{q} $ (q=uds) and $ b \overline{q} \to s \overline{q} $, four
previous missed 4-quark operators are included to make a complete leading log
QCD corrected result. F... | 1994-08-13 | 2008-02-03 | [
"hep-ph"
] | Chong-Shou Gao, Cai-Dian Lu and Zhao-Ming Qiu |
hep-ph/9408284 | Hadronic production of B_c-mesons | On the basis of the exact formulas of QCD perturbation theory and parton
model the hadronic production cross-sections for $B_c({B_c}^*)$-mesons
($1^1S_0,1^3S_1,2^1S_0,2^3S_1$-states) are calculated. The method used is the
direct calculation of appropriate amplitudes with the help of a FORTRAN program
and subsequent Mon... | 1994-08-13 | 2010-11-01 | [
"hep-ph"
] | A.V.Berezhnoy, A.K.Likhoded, M.V.Shevlyagin |
hep-ph/9408282 | Heavy Tau Neutrino as the Late Decaying Particle in the Cold Dark Matter
Scenario | The tau neutrino with a mass of about 10 MeV can be the ``late decaying
particle'' in the cold dark matter scenario for the formation of structure in
the Universe. We show how this may be realized specifically in the recently
proposed doublet Majoron model. | 1994-08-13 | 2009-12-30 | [
"hep-ph",
"astro-ph"
] | Hisashi Kikuchi and Ernest Ma |
hep-ph/9408276 | The Three-Loop Free Energy for Pure Gauge QCD | We compute the free energy density for pure non-Abelian gauge theory at high
temperature and zero chemical potential. The three-loop result to $O(g^4)$ is
[a lovely formula. Get the paper and print it out.] We examine the
sensitivity of this result to the choice of renormalization scale. We also give
a result for the... | 1994-08-12 | 2010-02-16 | [
"hep-ph"
] | Peter Arnold and Chengxing Zhai |
hep-ph/9408279 | Theoretical expectations for the top-quark mass | I review the theoretical expectactions for the top-quark mass in a variety of
models: the Standard Model, unified models (GUTs), low-energy supersymmetric
models (SUSY), unified supersymmetric models (SUSY GUTs), supergravity models,
and superstring models. In all instances I consider the constraints on the
top-quark m... | 1994-08-12 | 2007-05-23 | [
"hep-ph"
] | J. Lopez |
hep-ph/9408281 | Implications of a Purely Right-Handed Bottom Quark Decay Coupling | We examine the implications of the hypothesis that the decays of the b-quark
occur via pure right-handed couplings. We show that the existing lower limits
on neutrinoless double beta decay imply that any gauge model realizing this
idea must have either an $L_e-L_\mu$ or $L_e-L_\tau$ symmetry. We then show
that constrai... | 1994-08-12 | 2009-10-28 | [
"hep-ph"
] | R. N. Mohapatra and S. Nussinov |
hep-ph/9408277 | Recent Results in Neutrino Physics | This is a survey of the current experimental information on some of the
interesting issues in neutrino physics: neutrino species, neutrino masses,
neutrino magnetic moments, solar neutrinos, and the atmospheric neutrino
anomaly. | 1994-08-12 | 2009-10-28 | [
"hep-ph"
] | K. V. L. Sarma |
hep-ph/9408280 | Light Stops in the MSSM: Implications for Photino Dark Matter and Top
Quark Decay | We consider the viability of the minimal supersymmetric standard model with a
light ($m_{\tilde t_1} < $ 45 GeV) stop. In order for its relic abundance to be
cosmologically significant, the photino as dark matter must be quite close in
mass to the stop, $(m_{\tilde t_1} - m_{\tilde \gamma}) \simeq 3 - 7 $ GeV.
However,... | 1994-08-12 | 2009-09-25 | [
"hep-ph",
"astro-ph"
] | Keith A. Olive and Serge Rudaz |
hep-ph/9408278 | Dynamics of the QCD String with Light and Heavy Quarks | The generalization of the effective action [1] of the quark--antiquark system
in the confining vacuum is performed for the case of arbitrary quark masses.
The interaction of quarks is described by the averaged Wilson loop for which we
use the minimal area law asymptotics.
The system is quantized by the path integral ... | 1994-08-12 | 2009-10-28 | [
"hep-ph"
] | E.L.Gubankova, A.Yu.Dubin |
hep-ph/9408273 | Next-to-leading Order Debye Mass for the Quark-gluon Plasma | The Debye screening mass for a quark-gluon plasma at high temperature is
calculated to next-to-leading order in the QCD coupling constant from the
correlator of two Polyakov loops. The result agrees with the screening mass
defined by the location of the pole in the gluon propagator as calculated by
Rebhan. It is logari... | 1994-08-11 | 2009-10-28 | [
"hep-ph"
] | Eric Braaten and Agustin Nieto |
hep-ph/9408270 | Charm as Probe of New Physics | In this talk I would like to discuss two aspects of charm physics. One is to
show that many standard model predictions for rare decay modes (along with $D^0
-\bar{D}^0$ mixing and CP violation) are extremely small thus opening a window
for new physics effects\cite{1}; and the other is to review the expectations
from se... | 1994-08-11 | 2011-04-15 | [
"hep-ph"
] | Sandip Pakvasa |
hep-ph/9408274 | Unifying Logarithmic and Factorial Behavior in High Energy Scattering | The elegant instanton calculus of Lipatov and others used to find
factorially-divergent behavior (g^N * N!) for N*g >> 1 in g*phi^4 perturbation
theory is strictly only applicable when all external momenta vanish; a
description of high-energy 2 --> N scattering with N massive particles is
beyond the scope of such techn... | 1994-08-11 | 2009-10-28 | [
"hep-ph",
"hep-th"
] | J.M. Cornwall and D.A. Morris |
hep-ph/9408271 | Low Energy Leptogenesis in Left-Right Symmetric Models | We propose a new mechanism for baryogenesis. We study the effective potential
of left-right extension of the standard model and show that there can be a
first order phase transition at the left-right symmetry breaking and hence
$(B-L)$ symmetry breaking scale, which is around TeV in our scenario. As a
result, although ... | 1994-08-11 | 2009-10-28 | [
"hep-ph"
] | Avijit Ganguly, Jitendra C. Parikh and Utpal Sarkar |
hep-ph/9408275 | Constraints on non-universal soft terms from flavor changing neutral
currents | The smallness of flavor changing neutral currents constrains the soft
parameter space of supersymmetric extensions of the Standard Model. These low
energy constraints are translated to the soft parameter space generated at some
high energy scale $\Mgut$. For gaugino masses larger than the scalar masses and
non-universa... | 1994-08-11 | 2010-01-28 | [
"hep-ph"
] | D. Choudhury, F. Eberlein, A. K\"onig, J. Louis, S. Pokorski |
hep-ph/9408272 | Unitarity and Fermion Mass Generatation | Some years ago Appelquist and Chanowitz considered the scattering of
fermion--anti-fermion into a pair of longitudinal gauge bosons. Their
calculation established that unitarity implies that the physics giving mass to
a quark of mass $m_f$ must be below a mass scale of $16 \pi v^2 / m_f$ ($v=246$
GeV). This bound is a ... | 1994-08-11 | 2009-10-28 | [
"hep-ph"
] | Mitchell Golden |
hep-ph/9408269 | Complementarity of $e^+e^-$ and $pp$ Colliders for the Exploration of
Electroweak Symmetry Breaking | I review the physics capabilities of the machines proposed for the next
generation of high-energy experimentation: in hadron physics, the LHC, and in
electron physics, a $500$--$1500$ GeV $e^+e^-$ linear collider. Using for
illustration two specific models of electroweak symmetry breaking, I show how
the $pp$ and $e^+e... | 1994-08-11 | 2007-05-23 | [
"hep-ph"
] | Michael E. Peskin |
hep-ph/9408268 | Searching for Supersymmetry: A Minireview | After a lightning review of current bounds on the masses of supersymmetric
particles, we describe strategies that may be helpful for extracting signals
from the production of squarks, gluinos or top squarks, and from associated
chargino-neutralino production at the Tevatron. We then briefly review SUSY
signals at hadro... | 1994-08-10 | 2007-05-23 | [
"hep-ph"
] | Xerxes Tata |
hep-ph/9408264 | On the Deconfinement Phase Transition in the Resonance Gas | We obtain the constraints on the ruling parameters of the dense hadronic gas
model at the critical temperature and propose the quasiuniversal ratios of the
thermodynamic quantities. The possible appearence of thermodynamical
instability in such a model is discussed. | 1994-08-10 | 2009-10-28 | [
"hep-ph"
] | A.V.Leonidov, G.M.Zinovjev |
hep-ph/9408267 | Quantum Inflation? | We consider curved space quantum corrections to the equations of motion of
the inflaton field in the early Universe. Using the stochastic formalism in
phase space, we demonstrate that the quantum corrected evolution of the
inflaton can differ dramatically from its classical evolution when the mass
scales in the potenti... | 1994-08-10 | 2009-09-25 | [
"hep-ph"
] | Zygmunt Lalak and Rudolf Poppe |
hep-ph/9408261 | Reggeized Gluons with a Running Coupling Constant | The equation for two reggeized gluons in the vacuum channel is generalized to
take into account the running QCD coupling constant on the basis of the
bootstrap condition for gluon reggeization. Both the gluon trajectory as a
function of momentum and the interaction as a function of distance grow like
$\log\log$ in the ... | 1994-08-10 | 2009-10-28 | [
"hep-ph"
] | M. A. Braun |
hep-ph/9408265 | Multi-Channel Search for Minimal Supergravity at $p\bar p$ and $e^+e^-$
Colliders | We examine the phenomenology of minimal supergravity models, assuming only
that the low energy theory has the minimal particle content, that electroweak
symmetry is radiatively broken, and that R-parity is essentially conserved.
After delineating regions of supergravity parameter space currently excluded by
direct part... | 1994-08-10 | 2009-02-11 | [
"hep-ph"
] | H. Baer, C. H. Chen, R. Munroe, F. Paige and X. Tata |
hep-ph/9408266 | Photon Vector Meson Coupling and Vector Meson Properties at Low
Temperature Pion Gas | The vector and axial vector current mixing phenomena at low temperature pion
gas by Dey, Eletsky and Ioffe, leads to the low temperature correction of the
photon-vector meson coupling ($g_\rho$) at order $\epsilon=T^2/6f_\pi^2$ and
the $\rho$ meson mass at order $\epsilon^2$. We show how this {\it low
temperature theor... | 1994-08-10 | 2009-10-28 | [
"hep-ph",
"nucl-th"
] | Su Houng Lee, Chungsik Song and Hiroyuki Yabu |
hep-ph/9408263 | The Infrared Sensitivity of Nonabelian Debye Screening | It is shown that a perturbative treatment of nonabelian Debye screening at
high temperature suffers from infrared problems already at the next-to-leading
order, which is given by ring-resummed one-loop diagrams. Superficial infrared
power counting would let one expect a sensitivity to the magnetic mass scale
only at hi... | 1994-08-10 | 2008-02-03 | [
"hep-ph"
] | A. K. Rebhan |
hep-ph/9408262 | Nonabelian Debye Screening in One-Loop Resummed Perturbation Theory | Debye screening of static chromoelectric fields at high temperature is
investigated at next-to-leading order through one-loop resummed perturbation
theory. At this order the gluon propagator appears to give rise to strong
deviations from a Yukawa form of screening. Generally, an oscillatory behavior
is found which asym... | 1994-08-10 | 2009-10-28 | [
"hep-ph",
"hep-lat"
] | Anton K. Rebhan |
hep-ph/9408259 | New Strong Interactions Above the Electroweak Scale | Theoretical arguments for a new higher-color quark sector, based on Pomeron
physics in QCD, are briefly described. The electroweak symmetry-breaking,
Strong CP conservation, and electroweak scale CP violation, that is naturally
produced by this sector is also outlined. A further consequence is that above
the electrowea... | 1994-08-09 | 2009-09-25 | [
"hep-ph"
] | Alan R. White |
hep-ph/9408256 | Aspects of Nucleon Chiral Perturbation Theory | I review recent progress made in the calculation of nucleon properties in the
framework of heavy baryon CHPT. Topics include: Compton scattering, $\pi N$
scattering, the anatomy of a low-energy constant and the induced pseudoscalar
form factor. | 1994-08-09 | 2009-10-28 | [
"hep-ph",
"nucl-th"
] | Ulf-G. Mei{\ss}ner |
hep-ph/9408255 | Dirac Neutrinos and Primordial Magnetic Fields | We consider random primordial magnetic fields and discuss their dissipation,
coherence length $L_0$, scaling behaviour and constraints implied by the
primoridal nucleosynthesis. Such magnetic fields could excite the
right-helicity states of Dirac neutrinos, with adverse consequences for
nucleosynthesis. We present solu... | 1994-08-09 | 2011-07-19 | [
"hep-ph"
] | Kari Enqvist, A.I. Rez and V.V. Semikoz |
hep-ph/9408258 | Low x Physics and Perturbative Regge Asymptotics | Deep-inelastic scattering at small x is a new field of QCD phenomenology
which HERA experiments started to explore. The data show the feature expected
by the perturbative Regge asymptotics. We describe the parton picture of
structure function evolution both for increasing $Q^2$ and for decreasing $x$
and discuss the le... | 1994-08-09 | 2007-05-23 | [
"hep-ph"
] | R. Kirschner (DESY - Institut f\"ur Hochenergiephysik Zeuthen) |
hep-ph/9408254 | The Thermal Beta-Function in Yang-Mills Theory | Previous calculations of the thermal beta-function in a hot Yang--Mills gas
at the one--loop level have exposed problems with the gauge dependence and with
the sign, which is opposite to what one would expect for asymptotic freedom. We
show that inclusion of higher--loop effects through a static Braaten--Pisarski
resum... | 1994-08-09 | 2016-08-24 | [
"hep-ph",
"hep-th"
] | Per Elmfors, Randy Kobes |
hep-ph/9408257 | Time Reversal Odd Fragmentation Functions in Semi-Inclusive Scattering
of Polarized Leptons from Unpolarized Hadrons | Semi-inclusive deep inelastic scattering of polarized leptons off hadrons
enables one to measure the antisymmetric part of the hadron tensor. For
unpolarized hadrons this piece is odd under time reversal. In deep inelastic
scattering it shows up as a $\langle \sin \phi \rangle$ asymmetry for the
produced hadrons. This ... | 1994-08-09 | 2009-10-28 | [
"hep-ph",
"nucl-th"
] | J. Levelt and P.J. Mulders |
hep-ph/9408260 | A-dependence of nuclear transparency in quasielastic A(e,e'p) at high
Q^2 | The A-dependence of the quasielastic A(e,e'p) reaction has been studied at
SLAC with H-2, C, Fe, and Au nuclei at momentum transfers Q^2 = 1, 3, 5, and
6.8 (GeV/c)^2. We extract the nuclear transparency T(A,Q^2), a measure of the
average probability that the struck proton escapes from the nucleus A without
interaction.... | 1994-08-09 | 2016-09-01 | [
"hep-ph"
] | T. G. O'Neill, et al |
hep-ph/9408253 | Higgs and Supersymmetric Particle Signals at the Infrared Fixed Point of
the Top Quark Mass | We study the properties of the Higgs and supersymmetric particle spectrum
associated with the infrared fixed point solution of the top quark mass in the
MSSM. We concentrate on the possible detection of these particles, analysing
the deviations from the Standard Model predictions for the leptonic and
hadronic variables... | 1994-08-09 | 2008-11-26 | [
"hep-ph"
] | M. Carena and C.E.M. Wagner |
hep-ph/9408250 | Leptoquark Search at $e^+ e^-$ Colliders | We investigate the possibility of detecting a scalar leptoquark, coupling to
the electron and the top, at a linear collider. For coupling strength equalling
the weak coupling constant, the present mass bounds are of the order of 300
GeV. We demonstrate that at the NLC, one could detect such particles if their
mass were... | 1994-08-08 | 2009-10-28 | [
"hep-ph"
] | Debajyoti Choudhury |
hep-ph/9408251 | Next-to-Leading Corrections at Small X from Quark Evolution | Deep inelastic processes at small x are discussed in the framework of
perturbative QCD at high energy. New results are presented on the quark
anomalous dimensions beyond the leading logarithmic approximation, and their
relevance to the structure functions being measured at HERA is pointed out.
*Talk given at the XXIX... | 1994-08-08 | 2009-09-25 | [
"hep-ph"
] | F. Hautmann |
hep-ph/9408249 | Gluon Decay as a Mechanism for Strangeness Production in a Quark-Gluon
Plasma | A calculation of thermal gluon decay shows that this process contributes
significantly to strangeness production in a quark-gluon plasma. Our analysis
does not support recent claims that this is the dominant process. In our
calculations we take into account the resummed form of the transverse and
longitudinal parts of ... | 1994-08-08 | 2009-09-25 | [
"hep-ph"
] | N. Bili\'c, J. Cleymans, I. Dadi\'c and D. Hislop |
hep-ph/9408252 | The electroweak chiral parameters for a heavy Higgs in the Standard
Model | We study the electroweak interactions within the standard electroweak theory
in the case where the Higgs particle is heavy, namely, $M_H \leq 1\;TeV$. By
integrating out the Higgs boson to one loop we find the complete effective
lagrangian, called electroweak chiral lagrangian, that is $SU(2)_L\times
U(1)_Y$ invariant ... | 1994-08-08 | 2008-02-03 | [
"hep-ph"
] | M.J. Herrero and E. Ruiz Morales |
hep-ph/9408248 | The Ellis-Jaffe Sum Rule: The Estimates of the Next-to-Next-to-
Leading-Order QCD Corrections | The procedure of the estimates of the higher-order perturbative QCD
corrections to the physical quantities is generalized to the case when the
quantities under consideration obey the renormalization group equationts with
the corresponding anomalous dimension function. This procedure is used to
estimate the $\alpha_s^3$... | 1994-08-06 | 2010-01-06 | [
"hep-ph"
] | A.L.Kataev |
hep-ph/9408247 | Alignment in Gamma-Hadron Families of Cosmic Rays | Alignment of main fluxes of energy in a target plane is found in families of
cosmic ray particles detected in deep lead X-ray chambers. The fraction of
events with alignment is unexpectedly large for families with high energy and
large number of hadrons. This can be considered as evidence for the existence
of coplanar ... | 1994-08-06 | 2016-08-24 | [
"hep-ph",
"hep-th",
"nucl-th"
] | V.V.Kopenkin, A.K.Managadze, I.V.Rakobolskaya, T.M.Roganova |
hep-ph/9408238 | Slope of the Isgur-Wise Function from a QSSR Constraint on the $\Upsilon
B\bar{B}$ Couplings | We derive optimal upper and lower bounds on the slope of the Isgur-Wise
function at the zero recoil point in terms of the sum of the $\Upsilon
B\bar{B}$ couplings, estimated recently from a $QCD$ Spectral Sum Rule
($QSSR$). The problem is solved by means of a duality theorem in functional
optimization. Optimal correlat... | 1994-08-05 | 2009-10-28 | [
"hep-ph"
] | Irinel Caprini |
hep-ph/9408245 | Unitarity and the BFKL Pomeron | {\narrower\smallskip High Energy onium-onium scattering is calculated as a
function of impact parameter in the one and two pomeron exchange approximation.
Difficulties with using the multiple scattering series to unitarize single
pomeron exchange at high energy are noted. An operator formalsim which sums all
numbers of... | 1994-08-05 | 2009-10-28 | [
"hep-ph"
] | A.H. Nueller |
hep-ph/9408246 | Scatttering of Weakly Interacting Massive Particles from Ge73 | We use a "hybrid" method, mixing variationally-determined triaxial nuclear
Slater determinants, to calculate the response of Ge73 to hypothetical
dark-matter particles such as neutralinos. The method is a hybrid in that
rotational invariance is approximately restored prior to variation and then
fully restored before th... | 1994-08-05 | 2010-01-06 | [
"hep-ph",
"nucl-th"
] | V. Dimitrov, J. Engel, and S. Pittel |
hep-ph/9408239 | Azimuthal Angle Decorrelation in Large-rapidity Dijet Production at the
Tevatron | In this talk we examine the azimuthal angle decorrelation in dijet production
at large rapidity intervals at the Tevatron as a possible signature of the BFKL
evolution. | 1994-08-05 | 2009-10-28 | [
"hep-ph"
] | Vittorio Del Duca and Carl R. Schmidt |
hep-ph/9408240 | Production of Heavy Bound States at LEP and Beyond | We describe some characteristic properties of $B_c$ mesons and discuss the
production and the prospects of detection in $e^+ e^-$, $\gamma \gamma$, and
$\bar pp/pp$ collisions. The production mechanisms considered here also play an
important role in charmonium and bottomonium production. | 1994-08-05 | 2010-11-01 | [
"hep-ph"
] | A. Leike, R. Rueckl |
hep-ph/9408243 | Limit on $Br(b\to s g)$ in Two Higgs Doublet Models | Using the recent CLEO measurement of $Br(b\to s \gamma)$, we find that the
branching ratio of $b\to s g$ cannot be larger than $10\%$ in two Higgs doublet
models. The small experimental value of $Br(b\to e\bar{\nu}X)$ can no longer be
explained by charged Higgs boson effects. | 1994-08-05 | 2009-10-28 | [
"hep-ph"
] | Chao-Qiang Geng, Paul Turcotte and Wei-Shu Hou |
hep-ph/9408242 | On Hadronic Production of the $B_c$ Meson | Two of the approaches to the hadronic productions of the double heavy mesons
$B_c$ and $B_c^*$ are investigated. Comparison in various aspects on the
results obtained by the approaches is made and shown in figures and a table.
Some trial understanding of the approaches themselves and the achieved results
is presented. ... | 1994-08-05 | 2011-07-19 | [
"hep-ph"
] | Chao-Hsi Chang, Yu-Qi Chen, Guo-Ping Han and Hong-Tao Jiang |
hep-ph/9408241 | Sphalerons and Strings | This work is based on a paper with Margaret James, to appear in Phys Rev D.
In it we showed that the dipole moment of the sphaleron has its origin in two
components: a ring of electric current circulating around the edge of the
sphaleron; and also two regions of opposite magnetic charge above and below the
ring. This m... | 1994-08-05 | 2007-05-23 | [
"hep-ph"
] | Mark Hindmarsh |
hep-ph/9408244 | Scalar Mass Bounds in Two Supersymmetric Extended Electroweak Gauge
Models | In two recently proposed supersymmetric extended electroweak gauge models,
the reduced Higgs sector at the 100-GeV energy scale consists of only two
doublets, but they have quartic scalar couplings different from those of the
minimal supersymmetric standard model. In the SU(2) X SU(2) X U(1) model, there
is an absolute... | 1994-08-05 | 2011-07-19 | [
"hep-ph"
] | T. V. Duong and Ernest Ma |
hep-ph/9408228 | Implications of the Partial Width Z->bb for Supersymmetry Searches and
Model-Building | Assuming that the actual values of the top quark mass at FNAL and of the
ratio of partial widths Z->bb/Z->hadrons at LEP are within their current
one-sigma reported ranges, we present a No-Lose Theorem for superpartner
searches at LEP II and an upgraded Tevatron. We impose only two theoretical
assumptions: the Lagrangi... | 1994-08-04 | 2009-10-28 | [
"hep-ph"
] | James D. Wells, Chris Kolda, and G.L. Kane |
hep-ph/9408229 | Supersymmetric Contributions to $\BB$ and $\KK$ Mixings | We show that in the supersymmetric standard model (SSM) box diagrams mediated
by charginos and up-type squarks may give large contributions to $\BB$ and
$\KK$ mixings. This is due to the fact that a heavy top quark mass allows large
mass differences among the up-type squarks, which leads to a less efficient
cancellatio... | 1994-08-04 | 2010-11-01 | [
"hep-ph"
] | G. C. Branco, G. C. Cho, Y. Kizukuri, and N. Oshimo |
hep-ph/9408237 | Unifiable Supersymmetric Left-Right Model with E_6 Particle Content | A new supersymmetric gauge model is proposed with particle content chosen
only from the 27 and 27* representations of E_6. The gauge symmetry SU(3) X
SU(2)_L X SU(2)_R X U(1) is realized at the TeV energy scale and the gauge
couplings converge to a single value at around 10^{16} GeV. A discrete Z_4 X
Z_2 symmetry leads... | 1994-08-04 | 2009-10-28 | [
"hep-ph"
] | Ernest Ma |
hep-ph/9408232 | The S parameter in a technicolour model with explicit chiral symmetry
breaking | We derive the S parameter of the electroweak radiative corrections in a
scaled-QCD technicolour and using a Nambu-Jona Lasinio model for hadronic low
energy interactions. In this framework deviations from low energy QCD can be
quantitatively deduced. We induce explicit chiral symmetry breaking in the NJL
model through ... | 1994-08-04 | 2009-10-28 | [
"hep-ph"
] | E. Pallante |
hep-ph/9408230 | Discrete symmetries and isosinglet quarks in low-energy supersymmetry | Many extensions of the minimal supersymmetric standard model contain
superfields for quarks which are singlets under weak isospin with electric
charge -1/3. We explore the possibility that such isosinglet quarks have low or
intermediate scale masses, but do not mediate rapid proton decay because of a
discrete symmetry.... | 1994-08-04 | 2009-10-28 | [
"hep-ph"
] | Diego J. Castano and Stephen P. Martin |
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