Longitudinal fluctuations of the center of mass of the participants in heavy-ion collisions

Vovchenko, V. and Anchishkin, D. and Csernai, László Pál (2013) Longitudinal fluctuations of the center of mass of the participants in heavy-ion collisions. PHYSICAL REVIEW C, 88 (1). ISSN 2469-9985

Preview

Text 1306.5208v2.pdf Available under License Creative Commons Attribution. Download (292kB) | Preview

Abstract

A model for computing the probability density of event-by-event participant center-of-mass rapid- ity yc.m. is presented. The evaluations of the yc.m. distribution are performed for different collision energies and different centralities. We show that for certain conditions the rapidity distribution is de- scribed by a Gaussian with a variance determined mostly by the collision centrality. It is found that the width of the yc.m. distribution increases strongly for more peripheral collisions, while it depends weakly on the collision energy. Other theoretical estimates of rapidity distribution are presented and questions of interaction and separation between spectators and participants are discussed.

Actions (login required)

Edit Item