Radial expansion flow in reactions of Ca-40+Fe-58 and Ca-40+Ni-58

Citation
Zy. Ming et al., Radial expansion flow in reactions of Ca-40+Fe-58 and Ca-40+Ni-58, HIGH EN P N, 25(6), 2001, pp. 549-554
Citations number
16
Language
CHINESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
ISSN journal
0254-3052 → ACNP
Volume
25
Issue
6
Year of publication
2001
Pages
549 - 554
Database
ISI
SICI code
0254-3052(200106)25:6<549:REFIRO>2.0.ZU;2-9
Abstract
By means of using an isospin-dependent Boltzmann-Langevin equation which in cludes isospin-dependent symmetry energy, Coulomb energy, isospin-dependent nucleon-nucleon cross sections, Pauli blocking, and initialization, the ra dial expansion flow of reaction systems Ca-40 + Ni-58 and Ca-40 + Fe-58 at 53, 100, 150, and 200 MeV/u in the central collisions were studied. It has shown that the more neutron-rich system exhibits smaller radial expansion f low. It was found that the neutron-rich system had smaller threshold energy which may provide a new method to determine the isospin dependent nuclear equation of state from calculated result and linear fitting result.