CROSS-SECTIONS FOR THE LI-6(P,HE-3)HE-4 REACTION AT ENERGIES BETWEEN 0.1 AND 3.0 MEV

Absolute differential and total (integrated) cross sections for the Li6(p,He3)He4 reaction at proton energies between ∼0.14 and 3 MeV are presented, and compared with previous measurements. The results comprise a consistent set of data over much of the energy range of interest to a number of applications. Thermonuclear reaction rate parameters and astrophysical S factors are calculated. The measured angular distributions are compared to predictions of a preliminary R-matrix analysis based on the nuclear properties of energy levels in the mass-7 system. NUCLEAR REACTIONS Li6(p,He3)He4, Ep=0.14-3 MeV; enriched target; measured σ(Ep,θ), σ(Ep); calculated σv, astrophysical S factor. © 1979 The American Physical Society.