Title

Pair Production From Nuclear Collisions and Cosmic Ray Transport

Document Type

Article

Publication Date

9-1-2006

Department

Physics and Astronomy

Abstract

Modern cosmic ray transport codes, that are capable of use for a variety of applications, need to include all significant atomic, nuclear and particle reactions at a variety of energies. Lepton pair production from nucleus-nucleus collisions has not been included in transport codes to date. Using the methods of Baur, Bertulani and Baron, the present report provides estimates of electron positron pair production cross sections for nuclei and energies relevant to cosmic ray transport. It is shown that the cross sections are large compared to other typical processes such as single neutron removal due to strong or electromagnetic interactions. Therefore, lepton pair production may need to be included in some transport code applications involving MeV electrons.

Publication Title

Journal of Physics G-Nuclear and Particle Physics

Volume

32

Issue

9

First Page

B31

Last Page

B35