Finite- to zero-range relativistic mean-field interactions

Znanstveni rad - Izvorni znanstveni rad

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

Sažetak (engleski)

We study the relation between the finite-range (meson-exchange) and zero-range (point-coupling) representations of effective nuclear interactions in the relativistic mean-field framework. Starting from the phenomenological interaction DD-ME2 with density-dependent meson-nucleon couplings, we construct a family of point-coupling effective interactions for different values of the strength parameter of the isoscalar-scalar derivative term. In the meson-exchange picture this corresponds to different values of the σ-meson mass. The parameters of the isoscalar-scalar and isovector-vector channels of the point-coupling interactions are adjusted to nuclear matter and ground-state properties of finite nuclei. By comparing results for infinite and semi-infinite nuclear matter, ground-state masses, charge radii, and collective excitations, we discuss constraints on the parameters of phenomenological point-coupling relativistic effective interaction.

• Ključne riječi (engleski): forces in hadronic systems and nuclear effective interactions; nuclear density functional theory and extensions
• 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. 77, br. 3, 034302
• p-ISSN: 0556-2813
• e-ISSN: 1089-490X
• DOI: https://doi.org/10.1103/PhysRevC.77.034302
• URN:NBN: urn:nbn:hr:217:671625
• Datum objave publikacije: 2008
• Projekt: Šifra: 119-1191005-1010; Naziv (hrvatski): Nuklearna struktura i nuklearna astrofizika; Voditelj: Dario Vretenar; Pravna nadležnost: Hrvatska; Financijer: MZOS; Linija financiranja: ZP
• URL dokumenta: http://link.aps.org/doi/10.1103/PhysRevC.77.034302
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Javna napomena: Copyright (2008) by the American Physical Society. Received 20 December 2007; published 12 March 2008.
• Datum i vrijeme pohrane: 2019-10-18 21:16:06