Optical theorem formulation of low-energy nuclear reactions

Details Optical theorem formulation of low-energy nuclear reactions Optical theorem formulation of low-energy nuclear reactions

Feb 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997phrvc..55..801k&link_type=abstract

Physical Review C (Nuclear Physics), Volume 55, Issue 2, February 1997, pp.801-809

Physics

Nuclear Physics

5

Nuclear Reaction Models And Methods, Nuclear Reactions Involving Few-Nucleon Systems, Fusion And Fusion-Fission Reactions, Hydrostatic Stellar Nucleosynthesis

Scientific paper

We present a detailed description of a recently proposed optical theorem formulation of nonresonant low-energy nuclear reactions between two charged nuclei. Based on the optical theorem formulation, we obtain an analytic formula for the reaction cross section σ(E) which exhibits explicitly the energy and charge dependences of σ(E). The formula may provide a physical understanding of the anomalous low-energy enhancement of σ(E) observed in sub-barrier heavy-ion fusions and also in light nuclei fusions relevant for primordial nucleosynthesis and stellar evolution. As examples of its application, the new formulation is used to analyze astrophysical S factors for 7Li(p,α)4He, 6Li(d,α)4He, and 6Li(p,α)3He reactions.

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