Solar Proton Burning Process Revisited within a Covariant Model Based on the Bethe-Salpeter Formalism
Kaptari, L. P. · Kämpfer, B. · Grosse, E.
Original · EN
A covariant model based on the Bethe-Salpeter formalism is proposed for investigating the solar proton burning process pp→ De+νₑ and the near-threshold deuteron disintegration via electromagnetic and weak interactions. Results of numerical calculations of the energy dependence of relevant cross sections and the astrophysical low-energy cross section factor Spp of the proton burning process are presented. Our results confirm previous canonical values, and the energy dependence of the Spp factor is rather close to phenomenological extrapolations commonly adopted in computations of solar nuclear reaction rates.
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