Quantal Diffusion in Heavy-Ion Collisions

Yıl 2019, NSP2018 Özel Sayı, 195 - 200, 28.03.2019

Osman Yılmaz , Bülent Yılmaz Şakir Ayık

Öz

We investigate the quasi-fission reactions in the basis on the
Stochastic Mean-Filed (SMF) approach that provides a microscopic and quantal
description of the multi-nucleon exchange mechanism.  In deep-inelastic heavy-ion collisions, colliding
ions stick and move together for a long time. During this contact time many nucleons
exchange between projectile and target nuclei, and the composite system then
separate in two main primary fragments without forming a compound nucleus. Quasi-fission
is a non-compound nuclear process in deep-inelastic heavy-ion collisions and
the multi-nucleon exchange mechanism in the quasi-fission reactions is
important. We calculate the quantal transport coefficients for heavy-ion
collisions at bombarding energies below their fusion barriers and determine the
primary fragment mass distributions. Quantal calculations are compared with the
experimental data.

Anahtar Kelimeler

Multinucleon transfer, quasi-fission reaction, stochastic mean-field theory

Kaynakça

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