Open AccessRelativistic microscopic description of proton-nucleus scattering at energies u p to 200MeV
Author(s) -
Jian Rong,
ZhongQi Ma
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.1528
Subject(s) - physics , nucleus , atomic physics , scattering , isospin , proton , elastic scattering , resolution (logic) , nuclear physics , quantum mechanics , biology , microbiology and biotechnology , artificial intelligence , computer science
A new decomposition of the Dirac Brückner-Hartree-Fock (DBHF) G matrix is used to study the isospin-dependent relativistic microscopic optical potential (RMOP). The optical potential of finite nuclei can be obtained in the local den sity approximation. The energy dependence of proton-nucleus scattering for the optical potentials of finite nuclei is discussed. The differential cross section s and the resolution power in the p+4040Ca and p+208208Pb at Epp less than 200MeV are also calculated using the above RMOP. I t is found that the calculated results agree with the experimental results. It should be e mphasized that the ROMP obtained from DBHF G matrix without any free parameter s could well describe the proton elastic scattering. This RMOP can also be used for unstable nuclei. From the results of the Ca isotopes, it is found that the i sospin dependence is more important for the exotic nuclei.