Nuclear structure properties and weak interaction rates of even-even Fe isotopes

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dc.authorid, Jameel-Un-Nabi/0000-0002-8229-8757
dc.contributor.authorNabi, Jameel-Un
dc.contributor.authorBoyukata, Mahmut
dc.contributor.authorUllah, Asim
dc.contributor.authorRiaz, Muhammad
dc.date.accessioned2025-01-21T16:42:57Z
dc.date.available2025-01-21T16:42:57Z
dc.date.issued2024
dc.departmentKırıkkale Üniversitesi
dc.description.abstractNuclear structure properties and weak interaction rates of neutron -rich even-even iron (Fe) isotopes (A = 50 - 70) are investigated using the Interacting Boson Model -1 (IBM -1) and the proton-neutron Quasiparticle Random Phase Approximation (pn-QRPA) model. The IBM -1 is used for the calculation of energy levels and the B(E2) values of neutron -rich Fe isotopes. Later their geometry was predicted within the potential energy formalism of the IBM -1 model. Weak interaction rates on neutron -rich nuclei are needed for the modeling and simulation of presupernova evolution of massive stars. In the current study, we investigate the possible effect of nuclear deformation on stellar rates of even-even Fe isotopes. The pn-QRPA model is applied to calculate the weak interaction rates of selected Fe isotopes using three different values of deformation parameter. It is noted that, in general, bigger deformation values led to smaller total strength and larger centroid values of the resulting Gamow-Teller distributions. This later translated to smaller computed weak interaction rates. The current finding warrants further investigation before it may be generalized. The reported stellar rates are up to 4 orders of magnitude smaller than previous calculations and may bear astrophysical significance.
dc.description.sponsorshipHigher Education Commission Pakistan [20-15394/NRPU/R8rD/HEC/2021]
dc.description.sponsorshipJ.-U. Nabi and M. Riaz would like to acknowledge the support of the Higher Education Commission Pakistan through project 20-15394/NRPU/R8rD/HEC/2021.
dc.identifier.doi10.1016/j.cjph.2024.05.004
dc.identifier.endpage14
dc.identifier.issn0577-9073
dc.identifier.scopus2-s2.0-85193282366
dc.identifier.scopusqualityQ1
dc.identifier.startpage1
dc.identifier.urihttps://doi.org/10.1016/j.cjph.2024.05.004
dc.identifier.urihttps://hdl.handle.net/20.500.12587/25175
dc.identifier.volume90
dc.identifier.wosWOS:001244218400001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofChinese Journal of Physics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241229
dc.subjectGamow-Teller strength; Pn-QRPA model; IBM model; Nuclear structure; Nuclear deformation; Weak interaction rates
dc.titleNuclear structure properties and weak interaction rates of even-even Fe isotopes
dc.typeArticle

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