prikaz prve stranice dokumenta Axially deformed relativistic quasiparticle random-phase approximation based on point-coupling interactions
  Preuzmi
PDF 1.45 MB
Znanstveni rad - Izvorni znanstveni rad
Axially deformed relativistic quasiparticle random-phase approximation based on point-coupling interactions
Physical Review C, 110 (2024), 2; 024323. https://doi.org/10.1103/PhysRevC.110.024323
Ravlić, Ante; Nikšić, Tamara; Niu, Y. F.; Ring, Peter; Paar, Nils

Citiranost:
,

Institucijski repozitorij: Repozitorij Prirodoslovno-matematičkog fakulteta

Citirajte ovaj rad

Ravlić, A., Nikšić, T., Niu, Y. F., Ring, P. i Paar, N. (2024). Axially deformed relativistic quasiparticle random-phase approximation based on point-coupling interactions. Physical Review C, 110. (2). doi: 10.1103/PhysRevC.110.024323

Ravlić, Ante, et al. "Axially deformed relativistic quasiparticle random-phase approximation based on point-coupling interactions." Physical Review C, vol. 110, br. 2, 2024. https://doi.org/10.1103/PhysRevC.110.024323

Ravlić, Ante, Tamara Nikšić, Y. F. Niu, Peter Ring i Nils Paar. "Axially deformed relativistic quasiparticle random-phase approximation based on point-coupling interactions." Physical Review C 110, br. 2 (2024). https://doi.org/10.1103/PhysRevC.110.024323

Ravlić, A., et al. (2024) 'Axially deformed relativistic quasiparticle random-phase approximation based on point-coupling interactions', Physical Review C, 110(2). doi: 10.1103/PhysRevC.110.024323

Ravlić A, Nikšić T, Niu YF, Ring P, Paar N. Axially deformed relativistic quasiparticle random-phase approximation based on point-coupling interactions. Physical Review C [Internet]. 2024. [pristupljeno 25.03.2025.];110(2). doi: 10.1103/PhysRevC.110.024323

A. Ravlić, T. Nikšić, Y. F. Niu, P. Ring i N. Paar, "Axially deformed relativistic quasiparticle random-phase approximation based on point-coupling interactions", Physical Review C, vol. 110, br. 2, 2024. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:217:923769. [Citirano: 25.03.2025.]

Za citiranje koristite ovu mrežnu adresu: https://urn.nsk.hr/urn:nbn:hr:217:923769
Podaci o radu
Naslov (engleski)Axially deformed relativistic quasiparticle random-phase approximation based on point-coupling interactions
AutorAnte Ravlić
AutorTamara Nikšić
AutorY. F. Niu
AutorPeter Ring
AutorNils Paar
Autorova ustanovaSveučilište u Zagrebu
Prirodoslovno-matematički fakultet
(Fizički odsjek)
Znanstveno / umjetničko
područje, polje i grana		PRIRODNE ZNANOSTI
Fizika
Sažetak (engleski)
Collective nuclear excitations, like giant resonances, are sensitive to nuclear deformation, as evidenced by alterations in their excitation energies and transition strength distributions. A common theoretical framework to study these collective modes, the random-phase approximation (RPA), has to deal with large dimensions spanned by all possible particle-hole configurations satisfying certain symmetries. It is the aim of this work to establish a new theoretical framework to study the impact of... Više deformation on spin-isospin excitations, that is able to provide fast and reliable solutions of the RPA equations. The nuclear ground state is determined with the axially deformed relativistic Hartree-Bogoliubov (RHB) model based on relativistic point-coupling energy density functionals (EDFs). To study the excitations in the charge-exchange channel, an axially deformed proton-neutron relativistic quasiparticle RPA (pnRQRPA) is developed in the linear response approach. After benchmarking the axially deformed pnRQRPA in the spherical limit, a study of spin-isospin excitations including Fermi, Gamow-Teller (GT), and spin-dipole (SD) is performed for selected pf -shell nuclei. For GT transitions, it is demonstrated that deformation leads to a considerable fragmentation of the strength function. A mechanism inducing the fragmentation is studied by decomposing the total strength to different projections of total angular momentum K and constraining the nuclear shape to either spherical, prolate, or oblate. A similar fragmentation is also observed for SD transitions, although somewhat moderated by the complex structure of these transitions, while, as expected, the Fermi strength is almost shape independent. The axially deformed pnRQRPA introduced in this work open perspectives for the future studies of deformation effects on astrophysically relevant weak interaction processes, in particular beta decay and electron capture. Sakrij dio sažetka
Ključne riječi (engleski)
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran - međunarodna recenzija
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaPhysical Review C
Brojčani podacivol. 110, br. 2, 024323
p-ISSN2469-9985
e-ISSN2469-9993
DOIhttps://doi.org/10.1103/PhysRevC.110.024323
URN:NBNurn:nbn:hr:217:923769
Datum objave publikacije2024
ProjektŠifra: IP-2022-10-7773
Naziv (hrvatski): Relativistička nuklearna višečestična teorija u doba opažanja raznovrsnih signala
Naziv (engleski): Relativistic nuclear many-body theory in the multimessenger observation era
Kratica: RELANUM
Voditelj: Nils Paar
Pravna nadležnost: Hrvatska
Financijer: Hrvatska zaklada za znanost
Linija financiranja: Research Projects
ProjektŠifra: KK.01.1.1.01.0004
Naziv (hrvatski): Provedba vrhunskih istraživanja u sklopu Znanstvenog centra izvrsnosti za kvantne i kompleksne sustave te reprezentacije Liejevih algebri
Naziv (engleski): Implementation of top research within the Scientific Center of Excellence for Quantum and Complex Systems, and Representations of Lie Algebras
Kratica: QuantiXLie
Voditelj: Hrvoje Buljan
Pravna nadležnost: eu
Financijer: Europska komisija
Linija financiranja: European Regional Development Fund
URL dokumentahttps://link.aps.org/doi/10.1103/PhysRevC.110.024323
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Zaštićeno autorskim pravom.
Javna napomena© 2024 American Physical Society. Received 22 April 2024; accepted 13 August 2024; published 29 August 2024.
Datum i vrijeme pohrane2024-09-12 12:40:44
accessibility

closePristupačnostrefresh

Ako želite spremiti trajne postavke, kliknite Spremi, ako ne - vaše će se postavke poništiti kad zatvorite preglednik.