Effects of 8 B size and interaction asymptotics on the low - energy 7 Be ( p , γ ) 8 B cross section
نویسنده
چکیده
We calculate several B observables within the microscopic three-cluster model and study their potential constraints on the zero-energy astrophysical S factor of the Be(p, γ)B reaction. We find that these observables are in good agreement with the phenomenological values. Thus, the microscopic three-cluster model predicts a rather large value of S17(0) = (24− 26.5) eVb. We also replace the Gaussian asymptotics of the effective nucleon-nucleon interaction by the proper exponential behavior and study its effect on the capture cross section and find that at most it slightly increases the calculated
منابع مشابه
Effects of 8 B size on the low - energy 7 Be ( p , γ ) 8 B cross section
We calculate several “size-like” B observables within the microscopic threecluster model and study their potential constraints on the zero-energy astrophysical S17(0) factor of the Be(p, γ)B reaction. We find within our threecluster model that a simultaneous reproduction of the experimental data for the B radius and quadrupole moment and of the B-Li Coulomb displacement energy implies S17(0) = ...
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تاریخ انتشار 1998