Role of spectroscopic factors in the potential-model description of the Be7(p,gamma)B8 reaction

Abstract

In standard potential-model descriptions of the Be7(p,gamma)B8 reaction the Be7+p spectroscopic factors S appear in the cross section. We argue that the microscopic substructure effects which are represented by S are short-ranged and cannot affect the asymptotic normalization of the wave function. We believe that the standard way of describing reactions in a potential model may be incorrect and the low-energy cross section should not depend on S in the case of external capture reactions, like Be7(p,gamma)B8

4 pages with 2 figures. The postscript file and more information are available at http://nova.elte.hu/~csoto

References in corpus (1)

• Study of the ${}^{7}Be(p,\gamma {)}^{8}B$ and ${}^{7}Li(n,\gamma {)}^{8}Li$ capture reactions using the shell model embedded in the continuum

Cited by in corpus (5)

• Electromagnetic dissociation of 8B and the astrophysical S factor for 7Be(p,gamma)8B
• Structure of ${}^{8}B$ and astrophysical $S_{17}$ factor in Skyrme Hartree-Fock theory
• Models, measurements, and effective field theory: proton capture on Beryllium-7 at next-to-leading order
• Spectroscopic amplitudes and microscopic substructure effects in nucleon capture reactions
• Structure of ${}^8$B and astrophysical $S_{17}$ factor