$Δ$-scaling and heat capacity in relativistic ion collisions

Ma, Y. G.; Ma, G. L.; Cai, X. Z.; Chen, J. G.; Chen, J. H.; Fang, D. Q.; Guo, W.; He, Z. J.; Huang, H. Z.; Long, J. L.; Ma, C. W.; Sa, B. H.; Shen, W. Q.; Su, Q. M.; Wang, K.; Wei, Y. B.; Yan, T. Z.; Zhong, C.; Zuo, J. X.

$Δ$-scaling and heat capacity in relativistic ion collisions

Authors

Description

The $Δ$-scaling method has been applied to the total multiplicity distribution of the relativistic ion collisions of p+p, C+C and Pb+Pb which were simulated by a Monte Carlo package, LUCIAE 3.0. It is found that the $Δ$-scaling parameter decreases with the increasing of the system size. Moreover, the heat capacities of different mesons and baryons have been extracted from the event-by-event temperature fluctuation in the region of low transverse mass and they show the dropping trend with the increasing of impact parameter.
version 2: major change: 4 pages, 3 figures; Proceeding of International Conference on "Strangeness in Quark Matter" (SQM2004), Cape Town, South Africa, Spet. 2004 (Submitted to J. Phys. G.)