Evaluation of neutron nuclear data on xenon isotopes

Rashid, M. M.*; Shigyo, Nobuhiro*; Ishibashi, Kenji*; Iwamoto, Nobuyuki  ; Iwamoto, Osamu  

The neutron cross sections for stable Xe isotopes were calculated by nuclear reaction model code, CCONE and then compared with experimental information. The evaluation was made in the energy region from 1 keV to 20 MeV. The coupled-channels optical model was used to calculate the total cross section. The contributions of preequilibrium and direct processes in the statistical model calculations were considered to obtain reaction cross sections, -ray and particle emission spectra. The present evaluation can reasonably explain the experimental data of total, capture, (), () and () reactions. The obtained capture cross sections for Xe are smaller than the data of JENDL-3.2 in the energy region where the neutron spectrum of YAYOI has a large contribution. Hence, these results could improve the overestimation of C/E values found by the YAYOI experiment. The evaluated total () reaction cross section of Xe is in good agreement with experimental data. Therefore, the present data of Xe could provide relevant ones for KamLAND-Zen and EXO experiments.