Local Thermalization in the d + Au System
High Energy Physics - Phenomenology
2009-11-11 v2
Abstract
The extent of a locally equilibrated parton plasma in d + Au collisions at sqrt(s_NN) = 200 GeV is investigated as a function of collision centrality in a nonequilibrium-statistical framework. Based on a three-sources model, analytical solutions of a relativistic diffusion equation are in precise agreement with recent data for charged-particle pseudorapidity distributions. The moving midrapidity source indicates the size of the local thermal equilibrium region after hadronization. In central d + Au collisions it contains about 19% of the produced particles, and its relative importance rises with decreasing centrality.
Cite
@article{arxiv.hep-ph/0503212,
title = {Local Thermalization in the d + Au System},
author = {Georg Wolschin and Minoru Biyajima and Takuya Mizoguchi and Naomichi Suzuki},
journal= {arXiv preprint arXiv:hep-ph/0503212},
year = {2009}
}
Comments
9 pages, 3 figures; new table