Direct capture astrophysical S factors at low energy

Preprint

14 April 1998

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.nucl-th/9802028

Abstract

We investigate the energy dependence of the astrophysical S factors for the reactions 7Be(p,gamma)8B, the primary source of high-energy solar neutrinos in the solar pp chain, and 16O(p,gamma)17F, an important reaction in the CNO cycle. Both of these reactions have predicted S factors which rise at low energies; we find the source of this behavior to be a pole in the S factor at a center-of-mass energy E = -E_B, the point where the energy of the emitted photon vanishes. The pole arises from a divergence of the radial integrals.

Keywords

ASTROPHYSICAL S FACTORS
CAPTURE ASTROPHYSICAL
ENERGY DEPENDENCE
DIRECT CAPTURE
LOW ENERGIES
ENERGY SOLAR
FACTORS
PHOTON

All Related Versions

Version 1, 1998-02-10, ArXiv
Version 2, 1998-03-17, ArXiv
Version 3, 1998-03-19, ArXiv
Version 4, 1998-04-14, ArXiv
Published version: Physical Review C, 58 (1), 579.

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