Relativistic mean field approach with density dependent couplings for finite nuclei

Journal Article · Sat Mar 01 00:00:00 EST 1997 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.55.1211· OSTI ID:512803

Shen, H; Toki, H ^[1]; Sugahara, Y; Toki, H ^[2]; Shen, H ^[3]

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1. Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567 (Japan)
2. The Institute of Physical and Chemical Research (RIKEN), Hirosawa, Wako, Saitama 351 (Japan)
3. Department of Physics, Nankai University, Tianjin 300071 (China)

We study finite nuclei within the relativistic mean field approach with density dependent couplings (RMFD) based on the relativistic Brueckner-Hartree-Fock (RBHF) results on nuclear matter. We take the linear relativistic mean-field Lagrangian with mesons {sigma}, {omega}, {delta}, and {rho}, whose coupling constants with nucleons are determined so as to reproduce the RBHF results of nuclear matter at various densities and proton fractions. We apply the RMFD approach to various nuclei with spherical shape including unstable ones in the periodic table. We find satisfactory results on the nuclear properties. We emphasize here that the proton and neutron effective masses are largely different from each other as the proton fraction is decreased from Y{sub p}=0.5, which forces us to include the isovector scalar meson {delta} in our approach. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 512803
• Journal Information: Physical Review, C, Vol. 55, Issue 3; Other Information: PBD: Mar 1997
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
NUCLEAR STRUCTURE
HARTREE-FOCK METHOD
MEAN-FIELD THEORY
DENSITY
COUPLING CONSTANTS
NUCLEAR MATTER
LAGRANGIAN FUNCTION
PROTONS
NEUTRONS
RELATIVISTIC RANGE
SHAPE