New thermonuclear reaction rates of 64Ge(p,γ)65As and 65As(p, γ)66Se for type-I x-ray bursts
1 Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
2 Departament de Física i Enginyeria Nuclear, Universitat Politx00E9;cnica de Catalunya (EUETIB), E-08036 Barcelona, Spain
3 NSCL, Michigan State University, East Lansing, Michigan 48824-1321, USA
4 Department of Physics and Astrophysics, Michigan State University, East Lansing, Michigan 48824, USA
Published online: 12 February 2016
We present a new set of 64Ge(p, γ)65As and 65As(p, γ)66Se reaction rates based on recently evaluated proton separation energies Sp(65As) and Sp(66Se), and nuclear structure data from large-scale shell model calculations. Our new 64Ge(p,g) rate differs from those available in REACLIB by up to two orders of magnitude at temperatures encountered within type I X-ray bursts. We used one-zone post-processing type-I x-ray burst model to test our new rates, and present the astrophysical impact of these rates.
© Owned by the authors, published by EDP Sciences, 2016
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