Spin-Isospin Resonances and the Neutron Skin of Nuclei

Znanstveni rad - Izvorni znanstveni rad

• Autor: Dario Vretenar
• Autor: Nils Paar
• Autor: Tamara Nikšić
• 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 Gamow-Teller resonances (GTR) and isobaric analog states (IAS) of a sequence of even-even Sn target nuclei are calculated by using the framework of the relativistic Hartree-Bogoliubov model plus proton-neutron quasiparticle random-phase approximation. The calculation reproduces the experimental data on ground-state properties, as well as the excitation energies of the isovector excitations. It is shown that the isotopic dependence of the energy spacings between the GTR and IAS provides direct information on the evolution of neutron-skin thickness along the Sn isotopic chain. A new method is suggested for determining the difference between the radii of the neutron and proton density distributions along an isotopic chain, based on measurement of the excitation energies of the GTR relative to the IAS.

• Ključne riječi (engleski): isobaric analogue states; nuclear isospin; tin; nuclear structure
• 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 Letters
• Brojčani podaci: vol. 91, br. 26, 262502
• p-ISSN: 0031-9007
• e-ISSN: 1079-7114
• DOI: https://doi.org/10.1103/PhysRevLett.91.262502
• URN:NBN: urn:nbn:hr:217:916203
• Datum objave publikacije: 2003
• URL dokumenta: http://link.aps.org/doi/10.1103/PhysRevLett.91.262502
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Javna napomena: Copyright (2003) by the American Physical Society.
• Datum i vrijeme pohrane: 2019-10-13 18:20:49