Measurement of 7Li(n,γ0)8Li cross sections at En=1.5-1340 eV

Details Measurement of 7Li(n,γ0)8Li cross sections at En=1.5-1340 eV Measurement of 7Li(n,γ0)8Li cross sections at En=1.5-1340 eV

Jul 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996phrvc..54..383b&link_type=abstract

Physical Review C (Nuclear Physics), Volume 54, Issue 1, July 1996, pp.383-388

Physics

Nuclear Physics

17

Big Bang Nucleosynthesis, Solar Neutrinos, Radiative Capture, Neutron Absorption

Scientific paper

The 7Li(n,γ)8Li cross section is important in inhomogeneous big bang models, and as a constraint on model parameters used to determine the solar 7Be(p,γ)8B reaction rate. Values of the 7Li(n,γ0)8Li reaction cross section were measured for neutron energies between 1.5 and 1340 eV at the Oak Ridge Electron Linear Accelerator. The normalization of the cross section was determined by measuring the gamma-ray yield from the 7Li(n,γ0)8Li reaction relative to that from the 10B(n,αγ)7Li reaction. The cross section was found to have the inverse neutron-velocity relationship (1/v) indicative of s-wave capture. These results help resolve ambiguities in previous measurements.

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