Difference in peripherality of the inclusive and reactions and its implications for a phenomenological reaction model

Nakada, Hibiki* ; Nakayama, Shinsuke  ; Yoshida, Kazuki   ; Watanabe, Yukinobu*; Ogata, Kazuyuki*

Previous studies have revealed the importance of introducing surface correction into a phenomenological model for inclusive and reactions, and these findings have contributed significantly to the improvement of nuclear data evaluation. However, the necessity for the surface correction in an inclusive reaction has hardly been investigated. The energy spectra and their radial distributions for the and reactions are calculated by the one-step semiclassical distorted wave model. The radial distribution of the energy spectra for the reaction is shifted toward the outer region of the nucleus compared to the reaction. Based on this finding, we consider a larger surface correction into a phenomenological model for the reaction than that for the reaction, and calculated values reproduce the experimental spectra well. The peripherality of the reaction is more prominent than that of the reaction. The stronger surface correction thus should be introduced for the reaction than for the reaction.