Solar Proton Burning Process Revisited within a Covariant Model Based on the Bethe-Salpeter Formalism

Details Solar Proton Burning Process Revisited within a Covariant Model Based on the Bethe-Salpeter Formalism Solar Proton Burning Process Revisited within a Covariant Model Based on the Bethe-Salpeter Formalism

2000-01-14

arxiv.org/abs/nucl-th/0001026v1

J.Phys.G26:1423-1432,2000

Physics

Nuclear Physics

Nuclear Theory

11 pages including 6 eps-figures

Scientific paper

10.1088/0954-3899/26/9/311

A covariant model based on the Bethe-Salpeter formalism is proposed for investigating the solar proton burning process $pp\to De^+\nu_e$ 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 $S_{pp}$ of the proton burning process are presented. Our results confirm previous canonical values, and the energy dependence of the $S_{pp}$ factor is rather close to phenomenological extrapolations commonly adopted in computations of solar nuclear reaction rates.

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