Transport description of intermediate processes in heavy ion collisions

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:5970736

Ayik, S; Shivakumar, B; Shapira, D

An extension of the diffusion model is proposed in order to describe the intermediate processes and the compound nucleus formation in heavy ion collisions. The model describes the intermediate processes and fusion in terms of the formation and the evolution of a long-lived dinuclear molecular complex (DMC) and its subsequent decay by fragmentation. The colliding ions can be trapped into the pocket of the entrance channel nucleus-nucleus potential and a DMC is formed. This DMC acts as a doorway state towards formation of a completely equilibrated compound nucleus (CN). It evolves through the exchange of nucleons to different dinuclear configurations. At each stage of its evolution, there is a finite probability for direct fragmentation into outgoing channels by thermal penetration over the barrier. The doorway states that do not fragment relax into a CN configuration and are identified as the fusion yield. 8 refs.

• Research Organization: Tennessee Technological Univ., Cookeville (USA); Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5970736
• Report Number(s): CONF-860396-6; ON: DE86009157
• Country of Publication: United States
• Language: English

Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGED-PARTICLE REACTIONS
COMPOUND NUCLEI
DIFFERENTIAL EQUATIONS
EQUATIONS
FRAGMENTATION
HEAVY ION FUSION REACTIONS
HEAVY ION REACTIONS
NUCLEAR REACTIONS
PARTIAL DIFFERENTIAL EQUATIONS
PROBABILITY
SCHROEDINGER EQUATION
TRANSPORT THEORY
WAVE EQUATIONS