Microscopic analysis of fusion hindrance in heavy systems
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Asia/Tokyo
RIBF Bldg. 4F, Room 401 (RIKEN Wako)
RIBF Bldg. 4F, Room 401
RIKEN Wako
Description
Title: Microscopic analysis of fusion hindrance in heavy systems
Speaker: Dr. Koukei Washiyama
Date: Tuesday, July 15th, 11:00 -
Place: Room 401, RIBF building
Abstract:
In fusion reactions involving heavy nuclei, it is well known that the fusion hindrance occurs where the fusion probability is strongly hindered around the Coulomb barrier energy, compared with lighter systems. Quasi-fission process is considered to be mostly responsible for this hindrance. Recently, we proposed a method to extract nucleus-nucleus potential and one-body energy dissipation from the relative motion of colliding nuclei to nuclear intrinsic excitations in fusion reactions from time-dependent Hartree-Fock calculations. In this talk, using this method, I will show the property of nucleus-nucleus potential and dissipation extracted in fusion reactions of heavy systems. I will also show the analysis of energy dissipation for heavy systems and that origins of fusion hindrance come mainly from a dynamical increase in extracted potentials at short relative distances.
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