Search for p waves in low-energy proton capture reactions relevant to the solar neutrino problem

Details Search for p waves in low-energy proton capture reactions relevant to the solar neutrino problem Search for p waves in low-energy proton capture reactions relevant to the solar neutrino problem

Jan 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996phrvc..53....1g&link_type=abstract

Physical Review C (Nuclear Physics), Volume 53, Issue 1, January 1996, pp.R1-R4

Physics

Nuclear Physics

8

Radiative Capture, Polarization Phenomena In Reactions, Solar Neutrinos

Scientific paper

A previous study of the ground-state transition of the 7Li(p-->,γ)8Be reaction at energies of Ep(lab)=80-0 keV indicated the possibility of a large p-wave capture amplitude in this reaction. A similar p-wave component in the 7Be(p,γ)8B reaction could seriously affect the extrapolation used to obtain the astrophysical S factor. The present work examines this possibility by observing the closely related 7Li(p-->,γ16.6)8Be* (2+, T=0+1) reaction with polarized protons at and below 80 keV. Experimental data for σ(θ)/A0 and Ay(θ) for capture to the third (16.6 MeV) excited state of 8Be are presented, and the implications discussed.

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