27 research outputs found
Photons from axial-vector radiative decay in a hadron gas
Strange and non-strange axial-vector meson radiative decays contribute to
photon production in hadron gas. One- and two-hadron radiative decay modes of
, and are studied. At 200 MeV
temperature and for a narrow range in photon energies they contribute more to
the net thermal photon production rate than ,
or . They provide
significant contribution to the rate for photon energies as high as 1.5--2.0
GeV. For higher energies they are less important.Comment: 10 pages + 7 figures uuencoded in separate file, MSUCL-92
Damping Rate of a Hard Photon in a Relativistic Plasma
The damping rate of a hard photon in a hot relativistic QED and QCD plasma is
calculated using the resummation technique by Braaten and Pisarski.Comment: 4 pages, REVTeX, 2 figures (not included), UGI-MT-94-0
Thermal photon production rate from non-equilibrium quantum field theory
In the framework of closed time path thermal field theory we investigate the
production rate of hard thermal photons from a QCD plasma away from
equilibrium. Dynamical screening provides a finite rate for chemically
non-equilibrated distributions of quarks and gluons just as it does in the
equilibrium situation. Pinch singularities are shown to be absent in the real
photon rate even away from equilibrium.Comment: 10 pages RevTex, 2 ps figures include
A Survey and Performance Analysis of Software Platforms for Interactive Cluster-Based Multi-Screen Rendering
We present a survey of different software architectures designed to render on a tiled display. We provide an indepth analysis of three selected systems, including their implementation of data distribution, sort-first rendering, and overall usability. We use various test cases to analyze the performance of these three systems