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

Kaptari, L.; Kämpfer, B.; Grosse, E.
A covariant model based on the Bethe-Salpeter formalism is proposed for investigating the near-threshold deuteron disintegration via electromagnetic and weak interactions. The solar proton burning process $pp\to De^+\nu_e$ and
its astrophysical low-energy cross section factor $S_{pp}$ areconsidered within this formalism as well.
Results of numerical calculations of the energy dependence of relevant cross sections and of $S_{pp}$ are presented.
Our results confirm previous canonical values. The energy dependence of the $S_{pp}$ factor is rather close to phenomenological extrapolations commonly adopted in computations of solar nuclear reaction rates.
Keywords: solar pp burning process
  • J.Phys.G26:1423-1432,2000 nucl-th/0001026


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Publ.-Id: 3172