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arXiv · 0805.1204

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

R. A. Soltz·R. J. Newby·J. L. Klay·M. Heffner·L. Beaulieu·T. Lefort·K. Kwiatkowski·V. E. Viola
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Abstract

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.

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R. A. Soltz, R. J. Newby, J. L. Klay, M. Heffner, L. Beaulieu, T. Lefort, K. Kwiatkowski, V. E. Viola. 2009-01-09. Centrality dependence of the thermal excitation-energy deposition in 8-15 GeV/c hadron-Au reactions. https://doi.org/10.1103/physrevc.79.034607

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