Measurement of the 90,92Zr(p,γ)91,93Nb reactions for the nucleosynthesis of elements around A=90

Spyrou, A. and Quinn, S. J. and Simon, A. and Rauscher, Thomas and Battaglia, A. and Best, A. and Bucher, B. and Couder, M. and DeYoung, P. A. and Dombos, A. C. and Fang, X. and Gorres, J. and Kontos, A. and Li, Q. and Lin, L. Y. and Long, A. and Lyons, S. and Meyer, B. 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) Measurement of the 90,92Zr(p,γ)91,93Nb reactions for the nucleosynthesis of elements around A=90. PHYSICAL REVIEW C, 88 (4). ISSN 2469-9985

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Abstract

Cross section measurements of the reactions 90,92Zr(p,γ)91,93Nb were performed using the NSCL SuN detector at the University of Notre Dame. These reactions are part of the nuclear reaction flow for the synthesis of the light p nuclei. For the 90Zr(p,γ)91Nb reaction the new measurement resolves the disagreement between previous results. For the 92Zr(p,γ)93Nb reaction the present work reports the first measurement of this reaction cross section. Both reaction cross sections are compared to theoretical calculations and a very good agreement with the standard NON-SMOKER model is observed.

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