Structure of transactinide nuclei with relativistic energy density functionals

Znanstveni rad - Izvorni znanstveni rad

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

Sažetak (engleski)

A microscopic theoretical framework based on relativistic energy density functionals (REDFs) is applied to studies of shape evolution, excitation spectra, and decay properties of transactinide nuclei. Axially symmetric and triaxial relativistic Hartree-Bogoliubov (RHB) calculations, based on the functional DD-PC1 and with a separable pairing interaction, are performed for the even-even isotopic chains between Fm and Fl. The occurrence of a deformed shell gap at neutron number N=162 and its role on the stability of nuclei in the region around Z=108 is investigated. A quadrupole collective Hamiltonian, with parameters determined by self-consistent constrained triaxial RHB calculations, is used to examine low-energy spectra of No, Rf, Sg, Hs, and Ds with neutron number in the interval 158≤N≤170. In particular, we analyze the isotopic dependence of several observables that characterize the transitions between axially symmetric rotors, γ-soft rotors, and spherical vibrators. An interesting example of a possible occurrence of shape-phase transitions and critical-point phenomena in this mass region is explored.

• Ključne riječi (engleski): transactinide nuclei; energy density functionals; collective models
• 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. 88, br. 4, 044324
• p-ISSN: 0556-2813
• e-ISSN: 1089-490X
• DOI: https://doi.org/10.1103/PhysRevC.88.044324
• URN:NBN: urn:nbn:hr:217:944000
• Datum objave publikacije: 2013
• 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: https://journals.aps.org/prc/abstract/10.1103/PhysRevC.88.044324
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Javna napomena: Copyright (2013) by the American Physical Society. Received 9 August 2013; revised manuscript received 23 September 2013; published 21 October 2013.
• Datum i vrijeme pohrane: 2019-11-26 21:04:16