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Gamow-Teller strength in deformed nuclei within self-consistent pnQRPA with the Gogny force

par Martini, Marco ;Goriely, Stéphane ;Péru, S.
Référence EPJ web of conferences, 66, 02069
Publication Publié, 2014

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 (pn-QRPA). In particular we focus on the Gamow-Teller (GT) excitations. 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. © Owned by the authors, published by EDP Sciences, 2014.