Institute for High Energy Physics

output

19922026

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 1994Show all

59 papers · 1 filter

hep-th1994★ 64 cited

Observables and Gauge Fixing in Spontaneously Broken Gauge Theories

Martin Lavelle, David McMullan

Gauge fixing and the observable fields for both abelian and non-abelian gauge theories with spontaneous breaking of gauge symmetry are studied. We explicitly show that it is possib…

hep-lat1994★ 15 cited

New algorithm for gauge fixing in SU(2) lattice gauge theory

G. S. Bali, V. Bornyakov, M. Müller-Preussker +1

An overrelaxed variant of simulated annealing is applied to the problem of maximally abelian gauge fixing. The superiority of this algorithm over the commonly used relaxation proce…

hep-lat1994★ 1 cited

Phase Transitions in lattice QED

M. Baig

The main objective of the work presented here is to understand the appearance of phase transitions in pure gauge and scalar lattice QED. Main results are as follows: Pure gauge com…

gr-qc1994★ 9 cited

Perturbative Metric of Charged Black Holes in Quadratic Gravity

M. Campanelli, C. O. Lousto, J. Audretsch

We consider perturbative solutions to the classical field equations coming from a quadratic gravitational lagrangian in four dimensions. We study the charged, spherically symmetric…

hep-th1994★ 13 cited

Higher Derivative Four-Fermion Model in Curved Spacetime

E. Elizalde, S. Leseduarte, S. D. Odintsov

We discuss the phase structure of a higher derivative four-fermion model in four dimensions in curved spacetime in frames of the $\frac{1}{N _{c}}$ -expansion. First, we evaluate in ou…

hep-ph1994★ 63 cited

Zero Modes on Linked Strings

Jaume Garriga, Tanmay Vachaspati

We study linked loops of string in the presence of bosonic condensates and fermionic zero modes on the strings. We find that the strings necessarily carry a current if the bosons h…

hep-th1994★ 1 cited

Orthogonal Decomposition of Some Affine Lie Algebras in Terms of their Heisenberg Subalgebras

L. A. Ferreira, D. I. Olive, M. V. Saveliev

In the present note we suggest an affinization of a theorem by Kostrikin et.al. about the decomposition of some complex simple Lie algebras $G$ into the algebraic sum of pai…

hep-th1994★ 2 cited

Non-Critical Bosonic String Corrections to the Black Hole Entropy

E. Elizalde, S. D. Odintsov

We calculate the quantum corrections to the entropy of a very large black hole, coming from the theory of a $D$ -dimensional, non-critical bosonic string. We show that, for $D > 2$ ,…

gr-qc1994★ 15 cited

The Energy Spectrum of the Membrane effective Model for Quantum Black Holes

Carlos O. Lousto

We study first order fluctuations of a relativistic membrane in the curved background of a black hole. The zeroth-order solution corresponds to a spherical membrane tightly coverin…

hep-ph1994★ 14 cited

Supersymmetric Electroweak Renormaliztion of the Z-Width in the MSSM (II)

D. Garcia, R. A. Jimenez, J. Sola

We address the computation of Γ_Z and of the intriguing quantity R_b in the MSSM including full treatment of the Higgs sector. For a pseudoscalar Higgs mass m_{A^0}>70\,GeV and CDF…

hep-ph1994★ 46 cited

Supersymmetric Electroweak Renormalization of the Z-Width in the MSSM (I)

D. Garcia, R. A. Jimenez, J. Sola

Within the framework of the MSSM, we compute the complete set of electroweak one-loop supersymmetric quantum effects on the width $Γ_{Z}$ of the $Z$ -boson in the on-shell renormaliza…

hep-th1994★ 39 cited

Improved Effective Potential in Curved Spacetime and Quantum Matter - Higher Derivative Gravity Theory

Emilio Elizalde, Sergei D. Odintsov, August Romeo

\noindent{\large\bf Abstract.} We develop a general formalism to study the renormalization group (RG) improved effective potential for renormalizable gauge theories ---including ma…

hep-th1994★ 9 cited

New solution of vertex type tetrahedron equations

V. V. Mangazeev, S. M. Sergeev, Yu. G. Stroganov

In this paper we formulate a new N-state spin integrable model on a three-dimensional lattice with spins interacting round each elementary cube of the lattice. This model can be al…

hep-th1994★ 11 cited

Manifestations of Quantum Gravityin Scalar QED Phenomena

Emilio Elizalde, Sergei D. Odintsov, August Romeo

Quantum gravitational corrections to the effective potential, at one-loop level and in the leading-log approximation, for scalar quantum electrodynamics with higher-derivative grav…

hep-ph1994

Theoretical Aspects of Single-Spin Asymmetries Studies

S. M. Troshin, N. E. Tyurin

We consider theoretical background for experimental measurements of single-spin asymmetries. We stress the non-perturbative QCD aspects of observed asymmetries in hadronic reaction…

hep-th1994★ 9 cited

Dual versions of N=2 supergravity and spontaneous supersymmetry breaking

Yu. M. Zinoviev

In this paper, using a model of N=2 supergravity - vector multiplets interaction with the scalar field geometry $S U (1, m) / S U (m) \otimes U (1)$ as an example, we show that even when th…

hep-ph1994★ 91 cited

Charm Quark Mass Dependence of QCD Corrections to Nonleptonic Inclusive B Decays

E. Bagan, P. Ball, V. M. Braun +1

We calculate the radiative corrections to the nonleptonic inclusive B decay mode $b \to c u ˉ d$ taking into account the charm quark mass. Compared to the massless case, c…

hep-ph1994★ 27 cited

Semileptonic $B \to D^{(*)} l ν$ decays, the slope of Isgur-Wise function and $∣ V_{b c} ∣$ value in potential quark model

V. V. Kiselev

The modification of the naive potential model of the heavy meson is considered on the basis of the single-time prescription for the quark-meson form factor and the covariant choice…

hep-th1994★ 12 cited

Finite W_3 Transformations in a Multi-time Approach

J. Gomis, J. Herrero, K. Kamimura +1

Classical {\W} $_{3}$ transformations are discussed as restricted diffeomorphism transformations (\W-Diff) in two-dimensional space. We formulate them by using Riemannian geometry as…

hep-ph1994★ 106 cited

Theoretical Update of the Semileptonic Branching Ratio of B Mesons

E. Bagan, Patricia Ball, V. M. Braun +1

We reconsider the prediction of the semileptonic branching ratio of B mesons, using a recent calculation of the radiative corrections with account for finite quark masses in nonlep…

hep-ph1994★ 3 cited

Heavy Quark Hadronic Lagrangian for S-wave Quarkonium

A. Pineda, J. Soto

We use Heavy Quark Effective Theory (HQET) techniques to parametrize certain non-perturbative effects related to quantum fluctuations that put both heavy quark and antiquark in qua…

hep-ph1994★ 101 cited

Double charmed baryon production at B-factory

V. V. Kiselev, A. K. Likhoded, M. V. Shevlyagin

The cross-section for the double charmed baryon production at a $B$ -factory is estimated on the basis of the perturbative QCD calculations for the $cc$ -diquark production as well…

hep-th1994★ 6 cited

Conformal Factor Dynamics in the 1/N Expansion