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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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31 papers · 1 filter
Gravitational Capture of Cosmic Strings by a Black Hole
Jean-Pierre De Villiers, Valeri P. Frolov
The gravitational interaction of an infinitely long cosmic string with a Schwarzschild black hole is studied. We consider a straight string that is initially at a great distance an…
Finite Temperature Nonlocal Effective Action for Scalar Fields
Yuri Gusev, Andrei Zelnikov
Scalar fields at finite temperature are considered in four dimensional ultrastatic curved spacetime. One loop nonlocal effective action at finite temperature is found up to the sec…
Inelastic Final-State Interactions and Two-body Hadronic B decays into Single-Isospin channels
A. N. Kamal, C. W. Luo
The role of inelastic final-state interactions in CP asymmetries and branching ratios is investigated in certain chosen single isospin two-body hadronic B decays. Treating final-st…
Euclidean and Canonical Formulations of Statistical Mechanics in the Presence of Killing Horizons
Dmitri Fursaev
The relation between the covariant Euclidean free-energy and the canonical statistical-mechanical free energy in the presence of the Killing horizons is studied. …
On Fusion Algebras and Modular Matrices
T. Gannon, M. A. Walton
We consider the fusion algebras arising in e.g. Wess-Zumino-Witten conformal field theories, affine Kac-Moody algebras at positive integer level, and quantum groups at roots of uni…
Landau Ginzburg Theory and Nuclear Matter at Finite Temperature
R. A. Ritchie, H. G. Miller, F. C. Khanna
Based on recent studies of the temperature dependence of the energy and specific heat of liquid nuclear matter, a phase transition is suggested at a temperature MeV. We a…
Measurement of the Photon Structure Function F_2^gamma at Low x
The OPAL Collaboration, K. Ackerstaff et al
Deep inelastic electron-photon scattering is studied using e+e- data collected by the OPAL detector at centre-of-mass energies sqrt{s_ee} ~ M_{Z^0}. The photon structure function F…
Spin alignment of leading K*(892)^0 mesons in hadronic Z^0 decays
The OPAL Collaboration, K. Ackerstaff et al
Helicity density matrix elements for inclusive K*(892)^0 mesons from hadronic Z^0 decays have been measured over the full range of K^*0 momentum using data taken with the OPAL expe…
Measurement of the Q^2 evolution of the photon structure function F_2^gamma
The OPAL Collaboration, K. Ackerstaff et al
New measurements are presented of the photon structure function F_2^gamma(Q) at four values of Q^2 between 9 and 59 GeV/c^2 based on data collected with the OPAL detector at centre…
Parity Violation in Proton-Proton Scattering
W. T. H. van Oers, for E497 collaboration
Measurements of parity-violating longitudinal analyzing powers (normalized asymmetries) in polarized proton-proton scattering provide a unique window on the interplay between the w…
Evidence for the Decay K+ --> pi+ nu anti-nu
E787 Collaboration, S. Adler
An event consistent with the signature expected for the rare kaon decay K+ --> pi+ nu anti-nu has been observed. In the pion momentum region examined, 211<P<230 MeV/c, the backgrou…
Observation of the Decay K+ --> pi+ mu+ mu-
E787 Collaboration, S. Adler, M. S. Atiya +37
We have observed the rare decay K+ --> pi+ mu+ mu- and measured the branching ratio Gamma(K+ --> pi+ mu+ mu-)/Gamma(K+ --> all) = (5.0 +/- 0.4 (stat.) +/- 0.7 (sys.) +/- 0.6 (theor…
Observation of the Decay K^+ --> pi^+ gamma gamma
E787 Collaboration, P. Kitching, T. Nakano +37
The first observation of the decay K^+ --> pi^+ gamma gamma is reported. A total of 31 events was observed with an estimated background of 5.1 +- 3.3 events in the pi+ momentum ran…
An upper limit on the branching ratio for tau decays into seven charged particles
The OPAL Collaboration, K. Ackerstaff et al
We have searched for decays of the tau lepton into seven or more charged particles, using data collected with the OPAL detector from 1990 to 1995 in e^+e^- collisions at sqrt(s) ~…
Relativistic Calculations for the Exclusive Photoproduction of Eta Mesons from Complex Nuclei
M. Hedayati-Poor, H. S. Sherif
A relativistic model for the quasifree photoproduction of eta meson from complex nuclei is developed. The interactions between fields are introduced through effective Lagrangians.…
Solving the Hamilton-Jacobi equation for gravitationally interacting electromagnetic and scalar fields
B. K. Darian
The spatial gradient expansion of the generating functional was recently developed by Parry, Salopek, and Stewart to solve the Hamiltonian constraint in Einstein-Hamilton-Jacobi th…
Crystal Bases and Young Tableaux
Gerald Cliff
Let B be the crystal basis of the minus part of the quantized enveloping algebra of a semi-simple Lie algebra. Kashiwara has shown that B has a combinatorial description in terms o…
Maximal Acceleration Is Nonrotating
Don N. Page
In a stationary axisymmetric spacetime, the angular velocity of a stationary observer that Fermi-Walker transports its acceleration vector is also the angular velocity that locally…
Importance of the direct knockout mechanism in relativistic calculations for (gamma, p) reactions
J. I. Johansson, H. S. Sherif
Results of relativistic calculations of the direct knockout (DKO) mechanism for the photon induced removal of a proton from a target nucleus over a wide range of energies and nucle…
Plenty of Nothing: Black Hole Entropy in Induced Gravity
V. P. Frolov, D. V. Fursaev
We demonstrate how Sakharov's idea of induced gravity allows one to explain the statistical-mechanical origin of the entropy of a black hole. According to this idea, gravity become…
Nonfactorization and Final State Interactions in (B, B_s) --> ψP and ψV Decays
F. M. Al-Shamali, A. N. Kamal
Available experimental data on decay rates for B --> ψK, and decay rates and transversity amplitudes for B --> ψK^* are used to investigate nonfactorization contributions in these…
The Geometry of Consistency: Decohering Histories in Generalized Quantum Theory
David Craig
The geometry of decoherence in generalized "consistent histories" quantum theory is explored, revealing properties of the theory that are independent of any particular application…
Perturbations and Critical Behavior in the Self-Similar Gravitational Collapse of a Massless Scalar Field
Andrei V. Frolov
This paper studies the perturbations of the continuously self-similar critical solution of the gravitational collapse of a massless scalar field (Roberts solution). The perturbatio…
Space for Both No-Boundary and Tunneling Quantum States of the Universe
Don N. Page
At the minisuperspace level of homogeneous models, the bare probability for a classical universe has a huge peak at small universes for the Hartle-Hawking `no-boundary' wavefunctio…