[3I09-13] Theoretical Analysis and Surrogate Reaction

[3I13] Determination of neutron-induced cross sections using surrogate reaction

(2) Calculation of decay probabilities on neutron-induced and nucleon-transfer reactions

*Osamu Iwamoto¹, Riccardo Orlandi¹, Katsuhisa Nishio¹ (1. JAEA)

Keywords:nuclear data, neutron induced reaction, surrogate reaction, minor actinide, nuclear reaction model calculation

In the nuclear energy system research and development project "Study on decay process of compound nucleus for improvement of high-energy neutron nuclear data," we are conducting research related to obtaining the cross section using the surrogate reaction method, with the aim of increasing the accuracy of the neutron induced cross section for minor actinides. In this presentation, focusing on the spin distribution of composite nucleation, which would affect the cross section. We will report the calculated results about the differences in spin distribution between neutron-induce and nucleon-transfer reactions, and their contribution to the decay probability using optical model, distorted wave Born approximation, and statistical decay collapse model.