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Nuclear physics uncertainties of the astrophysical gamma-process studied through the 64Zn(p,alpha)61Cu and 64Zn(p,gamma)65Ga reactions

2018/02/08 by Gy. Gyürky, Zs. Fülöp, Z. Halász +2 · 1 citation
Physics and Astronomy · #nucl-ex #nucl-th

paper · pdf · doi:10.1088/1742-6596/940/1/012005

published as Journal of Physics: Conf. Series 940 (2017) 012005 · Proceedings of the Nuclear Physics in Astrophysics VII conference, York, UK, 2015

arxiv created 2018/02/08 · arxiv updated 2018/02/09

Abstract

In a recent work, the cross section measurement of the 64Zn(p,alpha)61Cu reaction was used to prove that the standard alpha-nucleus optical potentials used in astrophysical network calculation fail to reproduce the experimental data at energies relevant for heavy element nucleosynthesis. In the present paper the analysis of the obtained experimental data is continued by comparing the results with the predictions using different parameters. It is shown that the recently suggested modification of the standard optical potential leads to a better description of the data.

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