Isospin Effects on Astrophysical S-Factors

Abstract

We estimate the ratios of bare astrophysical S-factors at zero incident energy for proton and deuteron induced reactions in a model which assumes a compound nucleus formation probability plus a statistical decay. The obtained ratios agree well with available experimental values, as far as the reactions which have dominant s-wave entrance channel components are investigated. Due to its simplicity the model could be used as a guidance for predictions on reactions which have not been investigated yet.

12 pages, 1 figures

References in corpus (6)

• Compilation and R-matrix analysis of Big Bang nuclear reaction rates
• Activation measurement of the 3He(alpha,gamma)7Be cross section at low energy
• Simultaneous measurement of the photodisintegration of 4He in the giant dipole resonance region
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