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

Znanstveni rad - Izvorni znanstveni rad

• Autor: Tamara Nikšić
• Autor: Dario Vretenar
• Autor: P. Finelli
• Autor: Peter Ring
• Autorova ustanova: Sveučilište u Zagrebu; Prirodoslovno-matematički fakultet; (Fizički odsjek)
• Znanstveno / umjetničko područje, polje i grana: PRIRODNE ZNANOSTI; Fizika

Sažetak (engleski)

The relativistic Hartree-Bogoliubov (RHB) model is extended to include density-dependent meson-nucleon couplings. The effective Lagrangian is characterized by a phenomenological density dependence of the σ, ω, and ρ meson-nucleon vertex functions, adjusted to properties of nuclear matter and finite nuclei. Pairing correlations are described by the pairing part of the finite range Gogny interaction. 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.

• Ključne riječi (engleski): mean-field theory; ground-state properties; elastic electron-scattering; range pairing forces; neutron skin; drip line
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov časopisa: Physical Review C - Nuclear Physics
• Brojčani podaci: vol. 66, br. 2, str. 024306-15
• p-ISSN: 0556-2813
• e-ISSN: 1089-490X
• DOI: https://doi.org/10.1103/PhysRevC.66.024306
• URN:NBN: urn:nbn:hr:217:602408
• Datum objave publikacije: 2002
• URL dokumenta: http://link.aps.org/doi/10.1103/PhysRevC.66.024306
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Javna napomena: Copyright (2002) by the American Physical Society.
• Datum i vrijeme pohrane: 2019-10-13 12:15:57