https://doi.org/10.1051/epjconf/201610905005
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
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
