Revision of JAERI-QMD for analysis of peripheral nucleus-nucleus collisions

Ogawa, Tatsuhiko   ; Sato, Tatsuhiko   ; Hashimoto, Shintaro  ; Niita, Koji*

For prediction of radiological impact of heavy ions in accelerator facilities, space missions and cancer therapy, nuclear reaction models play a fundamental role. As one of such models, JAERI Quantum molecular dynamics (JQMD) has been successfully used to describe production of residue and secondary particles in nucleus-nucleus collisions. However, it has been pinpointed that JQMD underestimates projectile-like fragments produced in peripheral collisions. In this study, we revise the description of reaction mechanism and ground-state nuclear structure in JQMD to take into account for peripheral collisions accurately. Fragment production cross sections calculated by the revised JQMD (R-JQMD) are in better agreement with the literature data.