Elsevier

Nuclear Physics A

Volume 539, Issue 1, March–April 1992, Pages 75-96
Nuclear Physics A

Radiative capture of protons by light nuclei at low energies

https://doi.org/10.1016/0375-9474(92)90236-DGet rights and content

Abstract

Gamma-ray-to-charged-particle branching ratios, and gamma-ray angular distributions have been measured for the radiative capture of protons by 6Li, 7Li, 9Be and 11B for proton bombarding energies between 40 and 180 keV. Except for the 163 keV resonance in the reaction 11B(p, γ)12C, the branching ratios are roughly independent of energy and the angular distributions are isotropic. These measurements are used to deduce reaction S-factors and infer thermonuclear reactivities. The measurements are compared to distorted-wave-Born-approximation direct-capture cross-section calculations.

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    This work has been supported in part by USDOE Grants DE-FG02-87ER40342 and 88ER53276.

    We would like to thank Claus Rolfs for a very helpful communication regarding our calculated cross sections.

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