High Rapidity Physics with the BRAHMS Experiment
摘要
We report the study of the nuclear modification factor R_{AuAu} as function of pT and pseudo-rapidity in Au+Au collisions at top RHIC energy. We find this quantity almost independent of pseudo-rapidity. We use the pbar/pi- ratio as a probe of the parton density and the degree of thermalization of the medium formed by the collision. The pbar/pi- ratio has a clear rapidity dependence. The combination of these two measurements suggests that the pseudo-rapidity dependence of the R_{AuAu results from the competing effects of energy loss in a dense and opaque medium and the modifications of the wave function of the high energy beams in the initial state.
引用
@article{arxiv.nucl-ex/0608048,
title = {High Rapidity Physics with the BRAHMS Experiment},
author = {R. Debbe},
journal= {arXiv preprint arXiv:nucl-ex/0608048},
year = {2019}
}
备注
5 pages, four figures, to appear in the proceedings of the 9th Conference on the Intersections of Particle and Nuclear Physics (CIPANP 2006), Puerto Rico, 30 May - 3 June 2006