Investigation of Gamow Teller transition properties in 56-64Ni isotopes using QRPA methods

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dc.contributor.authorCakmak, S
dc.contributor.authorNabi, JU
dc.contributor.authorBabacan, T
dc.date.accessioned2024-07-18T12:00:20Z
dc.date.available2024-07-18T12:00:20Z
dc.description.abstractWeak rates in nickel isotopes play an integral role in the dynamics of supernovae. Electron capture and beta-decay of nickel isotopes, dictated by Gamow-Teller transitions, significantly alter the lepton fraction of the stellar matter. In this paper we calculate Gamow-Teller (GT) transitions for isotopes of nickel, Ni56-64, using QRPA methods. The GT strength distributions were calculated using four different QRPA models. Our results are also compared with previous theoretical calculations and measured strength distributions wherever available. Our investigation concluded that amongst all RPA models, the pn-QRPA(C) model best described the measured GT distributions (including total GT strength and centroid placement). It is hoped that the current investigation of GT properties would prove handy and may lead to a better understanding of the presupernova evolution of massive stars. (C) 2017 Elsevier B.V. All rights reserved.
dc.identifier.issn0375-9474
dc.identifier.other1873-1554
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/7646
dc.language.isoEnglish
dc.publisherELSEVIER SCIENCE BV
dc.subjectWEAK-INTERACTION RATES
dc.subjectDECAY HALF-LIVES
dc.subjectNEUTRON-RICH CU
dc.subjectSD-SHELL NUCLEI
dc.subjectBETA-DECAY
dc.subjectSTRENGTH DISTRIBUTIONS
dc.subjectELECTRON-CAPTURE
dc.subjectFP-SHELL
dc.subjectMICROSCOPIC CALCULATIONS
dc.subjectPRESUPERNOVA EVOLUTION
dc.titleInvestigation of Gamow Teller transition properties in 56-64Ni isotopes using QRPA methods
dc.typeArticle

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