Cross section measurements of α-induced reactions on ⁹²,⁹⁴Mo and ¹¹²Sn for p-process studies

摘要

The Mo-92(alpha, n)Ru-95, Mo-94(alpha, n)Ru-97, and Sn-112(alpha, gamma)Te-116 cross sections were measured at the upper end of the p-process Gamow window between 8.2 and 11.1 MeV. Our results are slightly lower than global Hauser-Feshbach calculations from the code NON-SMOKER, but still within the uncertainty of the prediction. The Sn-112(alpha, gamma)T-116, cross section agrees well with a recently measured thick-target cross section in the same energy range. For the Mo-92,Mo-94(alpha, n) reactions the present data close to the reaction thresholds could eliminate previous uncertainties within a factor of 20, and we can present now useful comparisons to statistical model calculations with different optical potentials.