158A GeV Pb-Pb碰撞中的强子产生
核理论
2007-05-23 v3 高能物理 - 唯象学
摘要
利用Fermi统计模型对若干相对论重离子碰撞实验中获得的强子丰度和能谱进行分析,以表征一个粒子源。得到了与正在解体、强子蒸发、解禁闭夸克-胶子等离子体相火球一致的性质,其重子化学势\mu_B=200-210MeV,温度T_f\simeq 140-150MeV,显著低于此前的预期。
引用
@article{arxiv.nucl-th/9903018,
title = {Hadron production in Pb-Pb collisions at 158A GeV},
author = {Johann Rafelski and Jean Letessier},
journal= {arXiv preprint arXiv:nucl-th/9903018},
year = {2007}
}
备注
4 pages in PRL format, including 3 tables; v2- Typos corrected, Comments and one ref added, words added in title, abstract; v3: discussion of pion condensation constraint added (referee request)