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

被引：6

作者：

Soltz, R. A. ^{[1
]}

Newby, R. J. ^{[1
]}

Klay, J. L. ^{[1
]}

Heffner, M. ^{[1
]}

Beaulieu, L. ^{[2
,3
]}

Lefort, T. ^{[2
,3
]}

Kwiatkowski, K. ^{[2
,3
]}

Viola, V. E. ^{[2
,3
]}

机构：

[1] Lawrence Livermore Natl Lab, Div N, Livermore, CA 94550 USA

[2] Indiana Univ, Dept Chem, Bloomington, IN 47304 USA

[3] Indiana Univ, IUCF, Bloomington, IN 47304 USA

来源：

PHYSICAL REVIEW C | 2009年 / 79卷 / 03期

关键词：

NUCLEI; COLLISIONS; PROTONS;

D O I：

10.1103/PhysRevC.79.034607

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

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 (<nu >) and the mean impact parameter (< b >) 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 (p) over bar -Au collisions, and the excitation energy per residue nucleon exhibits a uniform dependence on N-grey.

引用

页数：4

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