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On the role of pairing correlations in calculation of beta-decay half-lives within QRPA formalism

Nabi, Jameel-Un; Ishfaq, Mavra


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{
  "DOI": "10.1016/j.newast.2020.101356", 
  "abstract": "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.", 
  "author": [
    {
      "family": "Nabi", 
      "given": " Jameel-Un"
    }, 
    {
      "family": "Ishfaq", 
      "given": " Mavra"
    }
  ], 
  "container_title": "NEW ASTRONOMY", 
  "id": "3641", 
  "issued": {
    "date-parts": [
      [
        2020, 
        1, 
        1
      ]
    ]
  }, 
  "title": "On the role of pairing correlations in calculation of beta-decay half-lives within QRPA formalism", 
  "type": "article-journal", 
  "volume": "78"
}
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