Allowed and forbidden ?-decay log ft values of neutron-rich Pb and Bi isotopes

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dc.contributor.authorCakmak, Necla
dc.contributor.authorNabi, Jameel-Un
dc.contributor.authorMehmood, Arslan
dc.contributor.authorUllah, Asim
dc.contributor.authorTahir, Rubba
dc.date.accessioned2024-09-29T16:04:47Z
dc.date.available2024-09-29T16:04:47Z
dc.date.issued2024
dc.departmentKarabük Üniversitesien_US
dc.description.abstractThe beta-decay log ft values for Pb210-215 -> Bi210-215 and Bi210-215 -> Po210-215 transitions in the north-east region of Pb-208 nuclei are estimated using the proton-neutron quasiparticle random phase approximation (pn-QRPA) model. The pn-QRPA equations were solved using the schematic model approach. The Woods-Saxon (WS) potential was inserted as a mean-field basis and nuclei were treated as spherical. Allowed Gamow-Teller (GT) and first-forbidden (FF) transitions were investigated in the particle-hole (ph) channel. The calculated log ft values of the allowed GT and FF transitions using the pn-QRPA model with WS potential were found closer to the experimental values. Later we performed calculation of beta-decay rates in stellar environment. Here we solved the random phase approximation (RPA) equations in deformed Nilsson basis, both in the particle-particle (pp) and particle-hole (ph) channels. Allowed beta-decay and unique first-forbidden (U1F) rates were calculated in stellar matter. For certain cases, the calculated U1F contribution was much more than the allowed beta-decay rates under prevailing stellar conditions, in line with previous findings. Increasing temperature of the stellar core affected the allowed GT rates more than the U1F rates.en_US
dc.description.sponsorshipHigher Education Commission, Pakistan [20-15394/NRPU/R D/HEC/2021]; Higher Education Commission Pakistanen_US
dc.description.sponsorshipJ.-U. Nabi and A. Mehmood would like to acknowledge the support of the Higher Education Commission Pakistan through project number 20-15394/NRPU/R &D/HEC/2021.en_US
dc.identifier.doi10.1140/epja/s10050-024-01298-3
dc.identifier.issn1434-6001
dc.identifier.issn1434-601X
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-85189529197en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1140/epja/s10050-024-01298-3
dc.identifier.urihttps://hdl.handle.net/20.500.14619/6321
dc.identifier.volume60en_US
dc.identifier.wosWOS:001195442000002en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofEuropean Physical Journal Aen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectWeak-Interaction Ratesen_US
dc.subjectR-Processen_US
dc.subjectMicroscopic Calculationsen_US
dc.subjectNucleien_US
dc.subjectShellen_US
dc.titleAllowed and forbidden ?-decay log ft values of neutron-rich Pb and Bi isotopesen_US
dc.typeArticleen_US

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