Fine-Tuning Two-Particle Interferometry I: Effects from Temperature Gradients in the Source
Abstract
A comprehensive model study of Bose-Einstein correlation radii in heavy ion collisions is presented. The starting point is a longitudinally and transversally expanding fireball, represented at freeze-out by an azimuthally symmetric emission function. The freeze-out temperature is allowed to feature transverse and temporal gradients. Their effects on the correlation radii are studied. In particular, we evaluate numerically their dependence on the transverse mass of the particle pairs and check a recent suggestion, based on analytical approximations, that for certain reasonable source parameters all three correlation radii satisfy simultaneously a 1/\sqrt{M_\perp} scaling.
Cite
@article{arxiv.nucl-th/9707001,
title = {Fine-Tuning Two-Particle Interferometry I: Effects from Temperature Gradients in the Source},
author = {Boris Tomasik and Ulrich Heinz},
journal= {arXiv preprint arXiv:nucl-th/9707001},
year = {2009}
}
Comments
22 pages, 8 figures, epsf; replaced with the revised first part of the original study, the revised second part (concerning opaque sources) can be found under nucl-th/9805016