Isospin dependence of incompressibility in relativistic and non-relativistic mean field calculations

Details Isospin dependence of incompressibility in relativistic and non-relativistic mean field calculations Isospin dependence of incompressibility in relativistic and non-relativistic mean field calculations

2007-06-07

arxiv.org/abs/0706.0966v1

Phys.Rev.C76:034327,2007; Erratum-ibid.C77:049902,2008

Physics

Nuclear Physics

Nuclear Theory

19pages,5figures

Scientific paper

10.1103/PhysRevC.76.034327

The isospin dependence of incompressibility is investigated in the Skyrme Hartree-Fock (SHF) and relativistic mean field (RMF) models. The correlations between the nuclear matter incompressibility and the isospin dependent term of the finite nucleus incompressibility is elucidated by using the Thomas-Fermi approximation. The Coulomb term is also studied by using various different Skyrme Hamiltonians and RMF Lagrangians. The symmetry energy coefficient of incompressibility is extracted to be K_{\tau}=-(500\pm50) MeV from the recent experimental data of isoscalar giant monopole resonances (ISGMR) in Sn isotopes. Microscopic HF+random phase approximation (RPA) calculations are also performed with Skyrme interactions for ^{208}Pb and Sn isotopes to study the strength distributions of ISGMR. .

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