Centrality dependence of the thermal excitation-energy deposition in 8-15 GeV/c hadron-Au reactions

Details Centrality dependence of the thermal excitation-energy deposition in 8-15 GeV/c hadron-Au reactions Centrality dependence of the thermal excitation-energy deposition in 8-15 GeV/c hadron-Au reactions

2008-05-08

arxiv.org/abs/0805.1204v4

Phys.Rev.C79:034607,2009

Physics

Nuclear Physics

Nuclear Experiment

7 pages, 6 figures

Scientific paper

10.1103/PhysRevC.79.034607

The excitation energy per residue nucleon (E*/A) and fast and thermal light particle multiplicities are studied as a function of centrality defined as the number of grey tracks emitted N_grey and by the mean number of primary hadron-nucleon scatterings and mean impact parameter extracted from it. The value of E*/A and the multiplicities show an increase with centrality for all systems, 14.6 GeV p-Au and 8.0 GeV pi-Au and pbar-Au collisions, and the excitation energy per residue nucleon exhibits a uniform dependence on N_grey.