Radiative capture estimates via analytic continuation of elastic-scattering data, and the solar-neutrino problem

Details Radiative capture estimates via analytic continuation of elastic-scattering data, and the solar-neutrino problem Radiative capture estimates via analytic continuation of elastic-scattering data, and the solar-neutrino problem

Jan 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984phrvc..29..349i&link_type=abstract

Physical Review C (Nuclear Physics), Volume 29, Issue 1, January 1984, pp.349-351

Physics

Nuclear Physics

10

Scientific paper

Measurements of σγ for 3He(α,γ)7Be, central to the solar ν problem, disagree. In a direct capture model, the normalization constants N32 and N12 of the P32 and P12 bound state wave functions of 7Be at large 3He-α separations determine σγ. N32 and N12 are given by (simpler) measurements of σγ at a higher energy E, or, as here, by analytic continuation of the 3He-α p32 and p12 phase shifts, δ(E). The method has been successfully tested on calculations of Tang et al. Better measurements of δ(E) are called for. [NUCLEAR REACTIONS 3He(α,γ)7Be, E<300 keV, 3He(α,α)3He, E<4 MeV, effective range function, analytic continuation technique, bound state energies, and normalization.]

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