Evaluation of the β+-decay log ft value with inclusion of the neutron-proton pairing and particle-number projection
1 Ecole Nationale Supérieure de Technologie ENST ex CT-siège DG SNVI, RN5, Z. I. Rouiba, Algiers, Algeria
2 Ecole Nationale Préparatoire pour les Etudes de l’Ingénieur, RN5 Rouiba, Algiers, Algeria
3 Laboratoire de Physique Théorique, Faculté de Physique, USTHB, BP32 El Alia, 16111 Bab Ezzouar, Algiers, Algeria
a e-mail: email@example.com
Published online: 19 January 2016
The neutron-proton isovector pairing effect on the beta-plus decay log ft values is studied in typical mirror N≃Z nuclei. The log ft values are calculated by including or not the isovector pairing before and after a particle-number projection using the Sharp-Bardeen-Cooper-Schrieffer (SBCS) method. It is shown that the values obtained after projection in the isovector pairing case are the closest ones to experimental data. The effect of the deformation of the mother and daughter nuclei on the log ft is also studied.
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