Overall normalization of the astrophysical S factor and the nuclear vertex constant for 7Be(p, gamma )8B reactions. uri icon

abstract

  • We point out a simple relation between the nuclear vertex constant (NVC) and the overall normalization of the astrophysical S factor. Using predicted values of the NVC for the virtual decay of B8Be7+p we find S17(0)17.6 eVb for Be7(p,)8B reactions, consistent with the low values extrapolated from direct capture measurements by Filippone et al. and by Vaughn et al. New possibilities, using proton transfer reactions, to measure the astrophysical S factor indirectly are proposed. 1994 The American Physical Society.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Xu, H. M., Gagliardi, C. A., Tribble, R. E., Mukhamedzhanov, A. M., & Timofeyuk, N. K.

citation count

  • 213

complete list of authors

  • Xu, HM||Gagliardi, CA||Tribble, RE||Mukhamedzhanov, AM||Timofeyuk, NK

publication date

  • October 1994