The S(E) factor of 7Li(p,γ)8Be and consequences for S(E) extrapolation in 7Be(p,γ0)8B.

Details The S(E) factor of 7Li(p,γ)8Be and consequences for S(E) extrapolation in 7Be(p,γ0)8B. The S(E) factor of 7Li(p,γ)8Be and consequences for S(E) extrapolation in 7Be(p,γ0)8B.

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995zphya.351..229z&link_type=abstract

Z. Phys. A, Vol. 351, No. 2, p. 229 - 236

Physics

17

Nuclear Reactions: Solar Neutrinos

Scientific paper

Excitation functions and forward-backward anisotropies have been measured for the 7Li(p,γ)8Be capture reaction over the proton energy range Ep=100 to 1500 keV, using a 4π summing crystal and Ge(Li) detectors, respectively. The data show at all energies the presence of E1 and M1 capture amplitudes arising from the direct capture (DC) process and the ER=441 and 1030 keV resonances, respectively. Due to the observed DC process, the present data increase significantly the reaction rates compared to values given in the compilation. The data and their analyses remove the recent criticism on DC model calculations, which had implied a significant reduction in the extrapolated S(E) factor for 7Be(p,γ)8B and thus in the predicted flux of high-energy solar neutrinos.

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