Two-particle correlation from a relativistic fluid with a first order phase transition
Abstract
We numerically calculate two-particle correlation functions of CERN-SPS 158 A GeV Pb+Pb central collisions based on a (3+1)-dimensional relativistic hydrodynamics with a first order phase transition. We analyze the pair momentum dependence of pion source sizes extracted from the Yano-Koonin-Podgoretski\u{\i} (YKP) parametrization which is expected to give the source sizes directly. We find that, even in the case of the first order phase transition, the collective expansion and surface dominant freeze-out of the fluid naturally lead to the opaque source for which the interpretation of the temporal source parameter as the emission duration breaks down.
Cite
@article{arxiv.hep-ph/0005107,
title = {Two-particle correlation from a relativistic fluid with a first order phase transition},
author = {Kenji Morita and Shin Muroya and Hiroki Nakamura and Chiho Nonaka},
journal= {arXiv preprint arXiv:hep-ph/0005107},
year = {2016}
}
Comments
LaTeX, 4pages, 2 figures. To appear in the Proceedings of the International Conference on Quark Nuclear Physics, Adelaide, Australia, 21-25 February, 2000