R. Ramanathan, Y. K. Mathur, K. K. Gupta, Agam K. Jha, S. S. Singh
Published 2005-02-04, updated 2005-03-05Version 3
A Comparative study of the strengths and weakness of the models of fireball formation namely the statistical model of Ramanathan et.al (Physical Review C 70, 027903, 2004) and the approximation schemes of Kapusta et. al (Physical Review D 46, 1379, 1992) and its subsequent improved variants is made. The way to complement the various approximation schemes, in order to enhance their utility in the phenomenological analysis of QGP data that are expected from ongoing URHIC experiments, is suggested. The calculations demonstrate a striking QCD behaviour of the surface tension of the QGP droplet resulting in its increase with temperature, which is due to the confining nature of QCD forces at the surface and the interface surface tension varies as the cube of the transition temperature which is in conformity with the results of Lattice QCD simulations.
Comments: Revtex 5 pages and 5 figures, Added some results and references
Gauge checks, consistency of approximation schemes and numerical evaluation of realistic scattering amplitudes
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Comparative study of the 1-2 exchange symmetries in neutrino frameworks with global and local validities
