Elsevier

Physics Letters B

Volume 276, Issue 4, 20 February 1992, Pages 418-422
Physics Letters B

Impact parameter dependence of high energy gamma ray production in heavy-ion collisions

https://doi.org/10.1016/0370-2693(92)91660-2Get rights and content

Abstract

High energy photons (Eγ⩾30 MeV) have been measured in coincidence with light particles observed in a multidetector array for the 40Ar+51V system at a bombarding energy of EA=65 MeV. Double differential cross sections were obtained as a function of the midrapidity charge representation of the centrality of the collision. The inverse slope parameter increases with centrality more strongly than predicted by a BUU model.

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This work was supported in part by the US National Science Foundation under Grant No. PHY89-13815.

1

Permanent address: Science Applications Int. Co., 2950 Patrick Henry Dr.,Santa Clara, CA 95054,USA.

2

Present address: Department of Marine Biology, University of Rhode Island, Kingston,RI 02881, USA.

3

Present address: CEBAF, Newport News,VA 23606, USA.

4

Present address: Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.

5

Present address: Department odf Physics, University of Michigan, Dearborn, MI 48128, USA.

6

Present address: Gesellschaft für Schwerionenforschung, W-6100 Darmstadt, FRG.

7

Present address: Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA.

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