Quantum Molecular Dynamics Study of Heavy Ion Reaction Mechanisms (原子核集団ダイナミックスの新動向)

概要

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We applied QMD method to investigate the evolution of the reaction mechanisms in ^<16>O+^<16>O system for the energy region from about 1 MeV/u to several hundreds MeV/u. The fragment mass distribution shows us the outline of incident energy and impact parameter dependence of reaction mechanisms. For the low energy region, fusion reaction is dominant and there is little impact parameter dependence. The calculated complete fusion reaction cross section reproduced the experiments well. For the energy region of E_<lab> ≳ 30 or 50 MeV/u, there appear distinct impact parameter dependence; for head on reaction the reaction evolves to explosion, and for b=3 fm P-S-like processes appear, and for b=5 fm the reaction evolves to DIC-like and to QE process. For the P-S-like processes and DIC-like processes, we will discuss elsewhere.
素粒子論グループ素粒子研究編集部の論文
1991-07-20