Spin-isospin transitions in chromium isotopes within the quasiparticle random phase approximation

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dc.contributor.authorCakmak S.
dc.contributor.authorNabi J.-U.
dc.contributor.authorBabacan T.
dc.contributor.authorMaras I.
dc.date.accessioned2024-07-22T08:14:29Z
dc.date.available2024-07-22T08:14:29Z
dc.date.issued2015
dc.description.abstractBeta decay and electron capture on isotopes of chromium are advocated to play a key role in the stellar evolution process. In this paper we endeavor to study charge-changing transitions for 24 isotopes of chromium ( 42-65 Cr). These include neutron-rich and neutron-deficient isotopes of chromium. Three different models from the QRPA genre, namely the pn-QRPA, the Pyatov method (PM) and the Schematic model (SM), were selected to calculate and study the Gamow-Teller (GT) transitions in chromium isotopes. The SM was employed separately in the particle-particle (pp) and pp + particle-hole (ph) channels. To study the effect of deformation, the SM was first used assuming the nuclei to be spherical and later to be deformed. The PM was used both in pp and pp + ph channels but only for the case of spherical nuclei. The pn-QRPA calculation was done by considering both pp and ph forces and taking deformation of nucleus into consideration. A recent study proved this version of pn-QRPA to be the best for calculation of GT strength distributions amongst the QRPA models. The pn-QRPA model calculated GT distributions had low-lying centroids and small widths as compared to other QRPA models. Our calculation results were also compared with other theoretical models and measurements wherever available. Our results are in decent agreement with previous measurements and shell model calculations. © 2014 COSPAR. Published by Elsevier Ltd. All rights reserved.
dc.identifier.DOI-ID10.1016/j.asr.2014.10.015
dc.identifier.issn02731177
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/16577
dc.language.isoEnglish
dc.publisherElsevier Ltd
dc.rightsAll Open Access; Green Open Access
dc.subjectApproximation algorithms
dc.subjectChromium
dc.subjectDeformation
dc.subjectRadioactive tracers
dc.subjectCalculation results
dc.subjectElectron capture
dc.subjectGamow-Teller transitions
dc.subjectPn-QRPA
dc.subjectPyatov method
dc.subjectRandom phase approximations
dc.subjectStellar evolutions
dc.subjectStrength distribution
dc.subjectIsotopes
dc.titleSpin-isospin transitions in chromium isotopes within the quasiparticle random phase approximation
dc.typeArticle

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