Naslov
Relativistic Hartree-Bogoliubov model with density-dependent meson-nucleon couplings

Autori
Nikšić, Tamara ; Vretenar, Dario ; Finelli, P. ; Ring, Peter

Izvornik
Physical Review C (0556-2813) 66 (2002), 2; 024306-15

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
mean-field theory; ground-state properties; elastic electron-scattering; range pairing forces; neutron skin; drip line

Sažetak
Relativistic Hartree-Bogoliubov model is extended to include density-dependent meson-nucleon couplings. The effective Lagrangian is characterized by a phenomenological density dependence of the sigma, omega and rho meson-nucleon vertex functions, adjusted to properties of nuclear matter and finite nuclei. The new density-dependent effective interaction DD-ME1 is tested in the analysis of the equations of state for symmetric and asymmetric nuclear matter, and of ground-state properties of the Sn and Pb isotopic chains. Results of self-consistent RHB calculations are compared with experimental data, and with results previously obtained in the RHB model with nonlinear self-interactions, as well as in the density dependent relativistic hadron field (DDRH) model. Parity violating elastic electron scattering on Pb and Sn nuclei is calculated using a relativistic optical model with inclusion of Coulomb distortion effects, and the resulting asymmetry parameters are related to the neutron ground-state density distributions.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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