Direct measurements of the 7Be(p,γ)8B reaction cross section
Abstract
The flux of high energy neutrinos produced in the decay of 8B is proportional to the 7Be(p,γ)8B reaction cross section. Large uncertainties in this cross section limit our ability to test solar models. Direct measurements are underway to reduce the uncertainties to a level of 5% at solar energies. The S17 value seems to converge towards a 19 eV b value instead of 22.4 eV b, which implies a significant reduction (15-20%) in the 8B solar neutrino flux.
- Publication:
-
Exotic Nuclei and Atomic masses (ENAM 98)
- Pub Date:
- December 1998
- DOI:
- 10.1063/1.57291
- Bibcode:
- 1998AIPC..455..858B
- Keywords:
-
- 25.40.Lw;
- 27.20.+n;
- 26.30.+k;
- 97.10.Cv;
- Radiative capture;
- 6<
- =A<
- =19;
- Nucleosynthesis in novae supernovae and other explosive environments;
- Stellar structure interiors evolution nucleosynthesis ages