相对论微观光学势中的同位旋相关项

Isospin-Dependent Term in the Relativistic Microscopic Optical Potential

采用DiracBrueckner—Hartree-Fock方法研究同位旋相关的相对论微观光学势,讨论了其同位旋相关项的处理.采用定域密度近似得到有限核的微观光学势,以208Pb为例讨论了光学势的同位旋相关性,并与唯象的Lane势进行了比较.

The isospin-dependence of the relativistic microscopic optical potential is investigated in the Dirac Brueckner- Hartree-Fock approach. The isospin part of the microscopic optical potential is emphasized. A local density approxima- tion is adopted for finite nuclei. Taking ^208Pb as example, the difference between proton and neutron optical potentials is studied and compared with the phenomenological Lane Model potential.