A Description of Pseudorapidity Distributions of Charged Particles Produced in Au+Au Collisions at RHIC Energies. (24th January 2018)

• Record Type: Journal Article
• Authors: Jiang, Z. J.; Xu, Dongfang; Huang, Yan
• Other Names: Liu Fu-Hu Academic Editor.
• Is Part Of: Advances in high energy physics. Volume 2018(2018)
• Publication Date: 2018-01-24
• Subjects: Particles (Nuclear physics) -- Periodicals; Particles (Nuclear physics); Periodicals; 539.76
• DOI: 10.1155/2018/1369098
• Languages: English
• ISSNs: 1687-7357

Abstract

Abstract : In heavy ion collisions, charged particles come from two parts: the hot and dense matter and the leading particles. In this paper, the hot and dense matter is assumed to expand according to the hydrodynamic model including phase transition and decouples into particles via the prescription of Cooper-Frye. The leading particles are as usual supposed to have Gaussian rapidity distributions with the number equaling that of participants. The investigations of this paper show that, unlike low energy situations, the leading particles are essential in describing the pseudorapidity distributions of charged particles produced in high energy heavy ion collisions. This might be due to the different transparencies of nuclei at different energies.