?-decay of N=126 isotones for the r-process nucleosynthesis

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dc.authorid, Jameel-Un-Nabi/0000-0002-8229-8757
dc.authoridCakmak, Necla/0000-0001-5989-6663
dc.contributor.authorNabi, Jameel-Un
dc.contributor.authorCakmak, Necla
dc.contributor.authorUllah, Asim
dc.contributor.authorUllah Khan, Asad
dc.date.accessioned2024-09-29T16:03:02Z
dc.date.available2024-09-29T16:03:02Z
dc.date.issued2021
dc.departmentKarabük Üniversitesien_US
dc.description.abstractThe beta-decay properties of nuclei with neutron number N = 126 is investigated in this paper. Two different versions of the proton-neutron quasi particle random phase (pn-QRPA) model were employed to compute beta-decay rates and half-lives for the N = 126 isotones. The first set of calculation solves the pn-QRPA equations using the schematic model (SM) approach. The Woods-Saxon potential was employed as a mean-field basis. A spherical shape assigned for each waiting point nuclei throughout all simulations. Both allowed Gamow-Teller (GT) and first-forbidden (FF) transitions were considered in the particle-hole (ph) channel. The second set uses the pn-QRPA model in deformed Nilsson basis to calculate beta-decay rates for allowed GT and unique first-forbidden (U1F) transitions under terrestrial and stellar conditions. Our results are in agreement with shell model findings that first-forbidden transitions lead to a considerable decrement in the calculated half-lives of the isotones. Inclusion of the first-forbidden contribution led to a decent agreement of our computed terrestrial beta-decay half-lives with measured ones, much better than the previous calculations. The possible implication of the waiting point nuclei on r-process nucleosynthesis is discussed briefly.en_US
dc.identifier.doi10.1088/1402-4896/ac13e4
dc.identifier.issn0031-8949
dc.identifier.issn1402-4896
dc.identifier.issue11en_US
dc.identifier.scopus2-s2.0-85112118711en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1088/1402-4896/ac13e4
dc.identifier.urihttps://hdl.handle.net/20.500.14619/5859
dc.identifier.volume96en_US
dc.identifier.wosWOS:000675617900001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherIop Publishing Ltden_US
dc.relation.ispartofPhysica Scriptaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectGamow-Teller transitionsen_US
dc.subjectfirst-forbidden transitionsen_US
dc.subjectpn-QRPA theoryen_US
dc.subjectwaiting-point nucleien_US
dc.subjectbeta-decay ratesen_US
dc.subjectr-processen_US
dc.title?-decay of N=126 isotones for the r-process nucleosynthesisen_US
dc.typeArticleen_US

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