Observation of substantial p-wave capture strength in the Li7(p,)8Be reaction for Ep=80-0 keV and implications for astrophysical S factors


Journal Article

The Li7(p,)8Be reaction has been studied using polarized protons having an incident energy in the range Ep(lab)=80-0 keV. The measured angular distributions of the cross section ()A0 and analyzing power Ay() were interpreted using a model independent transition-matrix element analysis. The large (40%) analyzing power at 90° indicates the presence of an appreciable p-wave capture strength at these energies. The direct-capture model is used to show that this could reduce the astrophysical S factor by as much as 40%. © 1994 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Chasteler, RM; Weller, HR; Tilley, DR; Prior, RM

Published Date

  • January 1, 1994

Published In

Volume / Issue

  • 72 / 25

Start / End Page

  • 3949 - 3952

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/PhysRevLett.72.3949

Citation Source

  • Scopus