DENSITY AND MOMENTUM DEPENDENCE OF THE COUPLING STRENGTHS FOR SCALAR AND VECTOR-FIELDS

Citation
Gj. Mao et al., DENSITY AND MOMENTUM DEPENDENCE OF THE COUPLING STRENGTHS FOR SCALAR AND VECTOR-FIELDS, ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 347(3), 1994, pp. 173-179
Citations number
20
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics, Nuclear","Physics, Particles & Fields
ISSN journal
0939-7922
Volume
347
Issue
3
Year of publication
1994
Pages
173 - 179
Database
ISI
SICI code
0939-7922(1994)347:3<173:DAMDOT>2.0.ZU;2-N
Abstract
The collision term has been deduced based on the effective Lagrangian in addition to the mean-field. We propose the momentum- and density-de pendent coupling strengths for scalar and vector fields. The saturatio n properties of nuclear matter, the experimental data of the energy-de pendent optical potential and the mean free path in the nuclei can be reproduced simultaneously. The in-medium n - n cross section has also been calculated for different densities and energies, our results are consistent with Dirac-Brueckner-Hartree-Fock calculations.