Systematic study of (p,γ) reactions on Ni isotopes

Simon, A. and Spyrou, A. and Rauscher, Thomas and Frohlich, C. and Quinn, S. J. and Battaglia, A. and Best, A. and Bucher, B. and Couder, M. and DeYoung, P. A. and Fang, X. and Gorres, J. and Kontos, A. and Li, Q. and Lin, L. Y. and Long, A and Lyons, S. and Roberts, A. and Robertson, D. and Smith, K. and Smith, M. K. and Stech, E and Stefanek, B. and Tan, W. P. and Tang, X. D. and Wiescher, M. (2013) Systematic study of (p,γ) reactions on Ni isotopes. PHYSICAL REVIEW C, 87 (5). ISSN 2469-9985

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Abstract

A systematic study of the radiative proton capture reaction for all stable nickel isotopes is pre- sented. The results were obtained using 2.0 - 6.0 MeV protons from the 11 MV tandem Van de Graaff accelerator at the University of Notre Dame. The γ rays were detected by the NSCL SuN detector utilising the γ summing technique. The results are compared to a compilation of earlier measurements and discrepancies between the previous data are resolved. The experimental results are also compared to the theoretical predictions obtained using the NON-SMOKER and SMARAGD codes. Based on these comparisons an improved set of astrophysical reaction rates is proposed for the (p,γ) reactions on the stable nickel isotopes as well as for the 56Ni(p,γ)57Cu reaction.

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