Chemical instability and isospin effects in isotopic distributions

Citation
Wf. Li et al., Chemical instability and isospin effects in isotopic distributions, ACT PHY C E, 50(6), 2001, pp. 1040-1045
Citations number
14
Language
CHINESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA SINICA
ISSN journal
1000-3290 → ACNP
Volume
50
Issue
6
Year of publication
2001
Pages
1040 - 1045
Database
ISI
SICI code
1000-3290(200106)50:6<1040:CIAIEI>2.0.ZU;2-F
Abstract
Within the framework of isospin-dependent quantum molecular dynamics model, isotopic distributions in the reactions of Sn-112 + Sn-112 and Sn-124 + Sn- 124 at 40 and 100 MeV/u are investigated. It is found that the isotopic dis tribution has a significant isospin effect at 40 MeV/u,but the isospin effe ct disppears at 100 MeV/u. By investigating mechanical and chemical instabi lities at different energies,we find that the energy dependence of isospin effects on isotopic distributions results from the competition between mech anical instabilities and chemical instabilities at different energies.