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hep-th2000★ 21 cited

Non-Minimally Coupled Massive Scalar Field in a 2D Black Hole: Exactly Solvable Model

V. Frolov, A. Zelnikov

We study a nonminimal massive scalar field in a 2-dimensional black hole spacetime. We consider the black hole which is the solution of the 2d dilaton gravity derived from string-t…

hep-ph2000★ 27 cited

Expansion of bound-state energies in powers of m/M

Andrzej Czarnecki, Kirill Melnikov

We describe a new approach to computing energy levels of a non-relativistic bound-state of two constituents with masses M and m, by a systematic expansion in powers of m/M. After d…

hep-th2000★ 37 cited

Mining Energy from a Black Hole by Strings

V. Frolov, D. Fursaev

We discuss how cosmic strings can be used to mine energy from black holes. A string attached to the black hole gives rise to an additional channel for the energy release. It is dem…

gr-qc2000★ 43 cited

Fluctuations in the current and energy densities around a magnetic flux carrying cosmic string

L. Sriramkumar

We calculate the fluctuations in the current and energy densities for the case of a quantized, minimally coupled, massless, complex scalar field around a straight and infinitesimal…

hep-ph2000

Screening length, dispersion relations and quark potential in thermo field dynamics

Wanyun Zhao, F. C. Khanna

The screening length in a quark-gluon plasma, the dispersion relations of thermal gluon self-energy and the quark potential at high temperature are studied within thermo field dyna…

physics.ins-det2000★ 4 cited

A Monitor of Beam Polarization Profiles for the TRIUMF Parity Experiment

A. R. Berdoz

TRIUMF experiment E497 is a study of parity violation in pp scattering at an energy where the leading term in the analyzing power is expected to vanish, thus measuring a unique com…

nucl-th2000★ 10 cited

Finite temperature amplitudes and reaction rates in Thermofield dynamics

A. Rakhimov, F. C. Khanna

We propose a method for calculating the reaction rates and transition amplitudes of generic process taking place in a many body system in equilibrium. The relationship of the scatt…

hep-ph2000★ 15 cited

Emergence of Classicality in Quantum Phase Transitions

Sang Pyo Kim, Chul H. Lee

We show that classicality emerges during quantum phase transitions due to parametric interactions without coupling to environments. The Wigner functions are explicitly calculated f…

hep-ph2000★ 5 cited

Non-Gaussian Effects on Domain Growth

Sang Pyo Kim, F. C. Khanna

The vacuum two-point function is calculated beyond the Gaussian approximation during the second order phase transition. It is found that the correlation function is dominated by th…

gr-qc2000★ 55 cited

New Five Dimensional Black Holes Classified by Horizon Geometry, and a Bianchi VI Braneworld

C. Cadeau, E. Woolgar

We introduce two new families of solutions to the vacuum Einstein equations with negative cosmological constant in 5 dimensions. These solutions are static black holes whose horizo…

nucl-th2000★ 7 cited

Electromagnetic isoscalar rho-pi-gamma exchange current and the anomalous action

E. Truhlik, J. Smejkal, F. C. Khanna

Using modern data, we first refit constants needed to complete an anomalous pi-rho-omega-a_1 Lagrangian obtained within the approach of hidden local symmetries. Then we derive from…

cond-mat.str-el2000★ 8 cited

Feedback effects and the self-consistent Thouless criterion of the attractive Hubbard model

K. S. D. Beach, R. J. Gooding, F. Marsiglio

We propose a fully microscopic theory of the anomalous normal state of the attractive Hubbard model in the low-density limit that accounts for propagator renormalization. Our analy…

astro-ph2000

Performance of the STACEE Atmospheric Cherenkov Telescope

STACEE Collaboration, D. A. Williams, D. Bhattacharya +20

The Solar Tower Atmospheric Cherenkov Effect Experiment (STACEE) is located at the National Solar Thermal Test Facility of Sandia National Laboratories in Albuquerque, New Mexico,…

hep-ex2000★ 16 cited

Measurement of the B0 Lifetime and Oscillation Frequency using B0->D*+l-v decays

The OPAL collaboration, G. Abbiendi

The lifetime and oscillation frequency of the B0 meson has been measured using B0->D*+l-v decays recorded on the Z0 peak with the OPAL detector at LEP. The D*+ -> D0pi+ decays were…

hep-ex2000★ 21 cited

Search for the Decay K+ -> pi+ pi0 nu nubar

E787, :, S. Adler +45

The first search for the decay K^+ -> pi^+ pi^0 nu nubar has been performed with the E787 detector at BNL. Based on zero events observed in the kinematical search region defined by…

hep-th2000★ 19 cited

Discrete Symmetries of Functional Determinants

D. V. Vassilevich, A. Zelnikov

We study discrete (duality) symmetries of functional determinants. An exact transformation of the effective action under the inversion of background fields is…

hep-ex2000★ 7 cited

A Measurement of the Rate of Charm Production in W Decays

The OPAL collaboration, G. Abbiendi

Using data recorded at centre-of-mass energies around 183 GeV and 189 GeV with the OPAL detector at LEP, the fundamental coupling of the charm quark to the W boson has been studied…

hep-ex2000★ 40 cited

WW Production Cross Section and W Branching Fractions in e+e- Collisions at 189 GeV

The OPAL collaboration, G. Abbiendi

From a data sample of 183 pb^-1 recorded at a center-of-mass energy of roots = 189 GeV with the OPAL detector at LEP, 3068 W-pair candidate events are selected. Assuming Standard M…

hep-ex2000★ 21 cited

Measurement of the Mass and Width of the W Boson in e+e- Collisions at 189 GeV

The OPAL collaboration, G. Abbiendi

The mass and width of the W boson are determined in e+e- collisions at LEP using 183 pb^-1 of data recorded at a centre-of-mass energy roots=189 GeV with the OPAL detector. The inv…

hep-ex2000★ 24 cited

The Q^2-dependence of the Generalised Gerasimov-Drell-Hearn Integral for the Proton

A. Airapetian

The dependence on Q^2 (the negative square of the 4-momentum of the exchanged virtual photon) of the generalised Gerasimov-Drell-Hearn integral for the proton has been measured in…

gr-qc2000★ 19 cited

Local existence proofs for the boundary value problem for static spherically symmetric Einstein-Yang-Mills fields with compact gauge groups

Todd A. Oliynyk, H. P. Kunzle

We prove local existence and uniqueness of static spherically symmetric solutions of the Einstein-Yang-Mills equations for an arbitrary compact semisimple gauge group in the so-cal…

hep-ph2000★ 53 cited

Anomalous magnetic moment of a bound electron

Andrzej Czarnecki, Kirill Melnikov, Alexander Yelkhovsky

We study binding corrections to the gyromagnetic factor g_e of an electron in hydrogen-like ions. We argue that the leading order binding effects in radiative corrections Delta g_r…

hep-ex2000★ 14 cited

Measurement of Direct Photon Emission in K^+ -> pi^+ pi^0 gamma Decay

E787 Collaboration

We have performed a measurement of the K^+ -> pi^+ pi^0 gamma decay and have observed 2 X 10^4 events. The best fit to the decay spectrum gives a branching ratio for direct photon…

hep-ex2000★ 1 cited

First Measurement of the Inclusive Branching Ratio of b Hadrons to phi Mesons in Z0 Decays

The OPAL collaboration, G. Abbiendi

The inclusive production rate of phi mesons from the decay of b hadrons produced in Z0 decays was measured to be Br(b->phi+X) = 0.0282+-0.0013(stat.)+-0.0019(syst.), using data col…