University of Alberta

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 2002Show all

84 papers · 1 filter

nucl-th2002★ 27 cited

Properties of charmed and bottom hadrons in nuclear medium: Results for $Λ_{c}^{+}$ and $Λ_{b}$ hypernuclei

K. Tsushima, F. C. Khanna

This reports our recent studies on changes in properties of heavy hadrons containing at least a charm or a bottom quark in nuclear matter, and that the results for the $Λ_{c}^{+}$ and…

astro-ph2002★ 130 cited

Estimates of Cosmological Parameters Using the CMB Angular Power Spectrum of ACBAR

J. H. Goldstein, P. A. R. Ade, J. J. Bock +14

We report an investigation of cosmological parameters based on the measurements of anisotropy in the cosmic microwave background radiation (CMB) made by ACBAR. We use the ACBAR dat…

math.AG2002★ 4 cited

Indecomposable K_1 and the Hodge-D-conjecture for K3 and Abelian Surfaces

Xi Chen, James D. Lewis

We prove the Hodge-D-conjecture for general K3 and Abelian surfaces. Some consequences of this result, e.g., on the levels of higher Chow groups of products of elliptic curves, are…

astro-ph2002★ 120 cited

Improved Measurement of the Angular Power Spectrum of Temperature Anisotropy in the CMB from Two New Analyses of BOOMERANG Observations

J. E. Ruhl, P. A. R. Ade, J. J. Bock +27

We report the most complete analysis to date of observations of the Cosmic Microwave Background (CMB) obtained during the 1998 flight of BOOMERANG. We use two quite different metho…

hep-th2002★ 5 cited

< phi^2 > for a scalar field in 2D black holes: a new uniform approximation

V. Frolov, S. V. Sushkov, A. Zelnikov

We study nonconformal quantum scalar fields and averages of their local observables (such as <phi^2>^{ren} and T_{ab}^{ren}) in a spacetime of a 2-dimensional black hole. In order…

math.CA2002

Henstock--Kurzweil Fourier transforms

Erik Talvila

The Fourier transform is considered as a Henstock--Kurzweil integral. Sufficient conditions are given for the existence of the Fourier transform and necessary and sufficient condit…

gr-qc2002★ 41 cited

Quantum Spectrum for a Kerr-Newman Black Hole

Gilad Gour, A. J. M. Medved

In this paper, we consider the quantum area spectrum for a rotating and charged (Kerr-Newman) black hole. Generalizing a recent study on Kerr black holes (which was inspired by the…

hep-ph2002★ 628 cited

Refinements in electroweak contributions to the muon anomalous magnetic moment

Andrzej Czarnecki, William J. Marciano, Arkady Vainshtein

Effects of strong interactions on the two loop electroweak radiative corrections to the muon anomalous magnetic moment, $a_{μ} = (g_{μ} - 2) /2$ , are examined. Short-distance logs are shown…

hep-ex2002★ 106 cited

Measurement of single-spin azimuthal asymmetries in semi-inclusive electroproduction of pions and kaons on a longitudinally polarised deuterium target

HERMES collaboration, A. Airapetian

Single-spin asymmetries have been measured for semi-inclusive electroproduction of $π^{+}$ , $π^{-}$ , $π^{0}$ and $K^{+}$ mesons in deep-inelastic scattering off a longitudinally polarised…

gr-qc2002★ 11 cited

Extensive Entropy Bounds

Gilad Gour

It is shown that, for systems in which the entropy is an extensive function of the energy and volume, the Bekenstein and the holographic entropy bounds predict new results. More ex…

gr-qc2002★ 10 cited

Non-Existence of Black Holes in Certain $Λ < 0$ Spacetimes

G. J. Galloway, S. Surya, E. Woolgar

Assuming certain asymptotic conditions, we prove a general theorem on the non-existence of static regular (i.e., nondegenerate) black holes in spacetimes with a negative cosmologic…

gr-qc2002★ 40 cited

Thermodynamics with long-range interactions: from Ising models to black-holes

Jonathan Oppenheim

New methods are presented which enables one to analyze the thermodynamics of systems with long-range interactions. Generically, such systems have entropies which are non-extensive,…

hep-ex2002★ 11 cited

A Measurement of the tau -> mu nu nu Branching Ratio

The OPAL collaboration, G. Abbiendi

The tau -> mu nu nu branching ratio has been measured using data collected from 1990 to 1995 by the OPAL detector at the LEP collider. The resulting value of B(tau -> mu nu nu) = 0…

gr-qc2002★ 36 cited

Kerr Black Hole as a Quantum Rotator

Gilad Gour, A. J. M. Medved

It has been proposed by Bekenstein and others that the horizon area of a black hole conforms, upon quantization, to a discrete and uniformly spaced spectrum. In this paper, we cons…

gr-qc2002★ 13 cited

Existence of CMC and constant areal time foliations in T^2 symmetric spacetimes with Vlasov matter

Hakan Andreasson, Alan D. Rendall, Marsha Weaver

The global structure of solutions of the Einstein equations coupled to the Vlasov equation is investigated in the presence of a two-dimensional symmetry group. It is shown that the…

hep-ex2002★ 10 cited

Charged particle multiplicities in heavy and light quark initiated events above the Z0 peak

The OPAL collaboration, G. Abbiendi

We have measured the mean charged particle multiplicities separately for bbbar, ccbar and light quark (uubar, ddbar, ssbar) initiated events produced in e+e- annihilations at LEP.…

gr-qc2002★ 191 cited

Quantum Radiation from a 5-Dimensional Rotating Black Hole

Valeri Frolov, Dejan Stojkovic

We study a massless scalar field propagating in the background of a five-dimensional rotating black hole. We showed that in the Myers-Perry metric describing such a black hole the…

gr-qc2002★ 19 cited

Capture and Critical Scattering of a Long Cosmic String by a Rotating Black Hole

Martin Snajdr, Valeri Frolov

The capture of a straight, infinitely long cosmic string by a rotating black hole with rotation parameter $a$ is considered. We assume that a string is moving with velocity $v$ and…

gr-qc2002

Horizon Dynamics of a BTZ Black Hole

A. J. M. Medved

It has been suggested in the literature that, given a black hole spacetime, a relativistic membrane can provide an effective description of the horizon dynamics. In this paper, we…

hep-ex2002★ 71 cited

Erratum to: "Nuclear Effects on R=σ_L/σ_T in Deep-Inelastic Scattering" Phys.Lett. B475(2000)386

HERMES Collaboration, A. Airapetian

This erratum revokes the main conclusion of a Letter that reported measurements of cross sections for deep-inelastic scattering (DIS) of leptons on $^{3}$ He and $^{14}$ N targets, exp…

hep-th2002★ 10 cited

Quantum-Corrected Entropy for 1+1-Dimensional Gravity Revisited

A. J. M. Medved

In this paper, we examine a generic theory of 1+1-dimensional gravity with coupling to a scalar field. Special attention is paid to a class of models that have a power-law form of…

hep-ex2002★ 7 cited

Measurement of Neutral-Current Four-Fermion Production at LEP2

The OPAL collaboration

Four-fermion final states qqbar e+e- and qqbar mu+mu- from neutral-current interactions in e+e- collisions are studied in the OPAL detector at LEP at centre-of-mass energies from 1…

gr-qc2002★ 59 cited

Algebraic approach to quantum black holes: logarithmic corrections to black hole entropy