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Charge-exchange QRPA with the Gogny force for axially-symmetric deformed nuclei

par Martini, Marco ;Goriely, Stéphane ;Péru, S.
Référence Nuclear data sheets, 120, page (133)
Publication Publié, 2014-06-01

Article révisé par les pairs

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Résumé :

In recent years fully consistent quasiparticle random-phase approximation (QRPA) calculations using finite range Gogny force have been performed to study electromagnetic excitations of several axially-symmetric deformed nuclei up to the 238U. Here we present the extension of this approach to the charge-exchange nuclear excitations (pnQRPA). In particular we focus on the Isobaric Analog and Gamow-Teller resonances. A comparison of the predicted GT strength distribution with existing experimental data is presented. The role of nuclear deformation is shown. Special attention is paid to β-decay half-lives calculations for which experimental data exist and for specific isotone chains of relevance for the r-process nucleosynthesis. © 2014 Elsevier Inc.