1 Ocak 2020 Dergi makalesi Açık Erişim

Nabi, Jameel-Un; Ishfaq, Mavra

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    <subfield code="a">In this paper we show that the proton-neutron residual interaction can play an important role in the reliability of calculated beta-decay half-lives. It may also improve the prediction power of the quasiparticle random phase approximation (QRPA) model. We further demonstrate that a reasonable choice of the particle-particle (attractive) and particle-hole force (repulsive) parameters can result in calculated half-lives in very good comparison with the measured ones. Pairing gaps have affect on calculated half-lives which we explore in this paper. We present our half-lives calculation using the proton-neutron QRPA (pn-QRPA) model possessing a multi-shell single-particle deformed space including a schematic interaction for some medium mass neutron-deficient nuclei undergoing beta(+)/EC decay. Our study shows a better agreement with the available experimental data as compared to former calculations.</subfield>
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    <subfield code="a">On the role of pairing correlations in calculation of beta-decay half-lives within QRPA formalism</subfield>
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