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Scientific paper - Original scientific paper
Nuclear charge-exchange excitations based on a relativistic density-dependent point-coupling model
Physical Review C, 103 (2021), 6; 064307. https://doi.org/10.1103/PhysRevC.103.064307
Vale, Deni; Niu, Y. F.; Paar, Nils

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Vale, D., Niu, Y. F. & Paar, N. (2021). Nuclear charge-exchange excitations based on a relativistic density-dependent point-coupling model. Physical Review C, 103. (6). doi: 10.1103/PhysRevC.103.064307

Vale, Deni, et al. "Nuclear charge-exchange excitations based on a relativistic density-dependent point-coupling model." Physical Review C, vol. 103, no. 6, 2021. https://doi.org/10.1103/PhysRevC.103.064307

Vale, Deni, Y. F. Niu and Nils Paar. "Nuclear charge-exchange excitations based on a relativistic density-dependent point-coupling model." Physical Review C 103, no. 6 (2021). https://doi.org/10.1103/PhysRevC.103.064307

Vale, D., Niu, Y. F. and Paar, N. (2021) 'Nuclear charge-exchange excitations based on a relativistic density-dependent point-coupling model', Physical Review C, 103(6). doi: 10.1103/PhysRevC.103.064307

Vale D, Niu YF, Paar N. Nuclear charge-exchange excitations based on a relativistic density-dependent point-coupling model. Physical Review C [Internet]. 2021 [cited 2024 November 26];103(6). doi: 10.1103/PhysRevC.103.064307

D. Vale, Y. F. Niu and N. Paar, "Nuclear charge-exchange excitations based on a relativistic density-dependent point-coupling model", Physical Review C, vol. 103, no. 6, 2021. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:516337. [Accessed: 26 November 2024]

Metadata
Title (english)Nuclear charge-exchange excitations based on a relativistic density-dependent point-coupling model
AuthorDeni Vale
AuthorY. F. Niu
AuthorNils Paar
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
Spin-isospin transitions in nuclei away from the valley of stability are essential for the description of astrophysically relevant weak interaction processes. While they remain mainly beyond the reach of experiment, theoretical modeling provides important insight into their properties. In order to describe the spin-isospin response, the proton-neutron relativistic quasiparticle random phase approximation is formulated using the relativistic densitydependent point coupling interaction, and separable pairing interaction in both the T = 1 and T = 0 pairing channels. By implementing recently established DD- PCX interaction with improved isovector properties relevant for the description of nuclei with neutron-to-proton number asymmetry, the isobaric analog resonances (IAR) and Gamow-Teller resonances (GTR) have been investigated. In contrast to other models that usually underestimate the IAR excitation energies in Sn isotope chain, the present model accurately reproduces the experimental data, while the GTR properties depend on the isoscalar pairing interaction strength. This framework provides not only an improved description of the spin-isospin response in nuclei, but it also allows future large-scale calculations of charge-exchange excitations and weak interaction processes in stellar environment.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical Review C
Numberingvol. 103, no. 6, 064307
p-ISSN2469-9985
e-ISSN2469-9993
DOIhttps://doi.org/10.1103/PhysRevC.103.064307
URN:NBNurn:nbn:hr:217:516337
Publication2021
ProjectNumber: KK.01.1.1.01.0004
Title (english): QuantiXLie Center of Excellence
Acronym: QuantiXLie
Leader: Hrvoje Buljan, Pavle Pandžić
Jurisdiction: eu
Funding stream: European Regional Development Fund - the Competitiveness and Cohesion Operational Programme
Document URLhttps://link.aps.org/doi/10.1103/PhysRevC.103.064307
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public note© 2021 American Physical Society. Received 18 December 2020; Revised 21 April 2021; Accepted 26 May 2021; Published 8 June 2021.
Created on2023-08-10 08:59:17