Shell-model calculation of 51V using pairing-plus-surface-tensor-interaction

Employing 48Ca as the core, the structure of 51V is studied in the frame-work of a conventional shell-model. A pairing-plus-surface-tensor-interaction is used as the effective two-body interaction. Besides all configurations arising from 1fsub(7/2) and 2psub(3/2) single-particle orbits, configurations of the form (1fsub(7/2)sup(nsub(1)) (1fsub(5/2)sup(nsub(2)) where n1 + n2 = 3 (the number of extracore protons) and n2 = 1, 2 are also considered. Low-lying energy levels are calculated and a satisfactory agreement with the experimental values is obtained. Calculated density of states is higher than that reported previously. The B(E2) values for transitions between low-lying levels and the spectroscopic factors for the 50Ti(3He,d)51V reaction are also presented. The dependence of the interaction parameters on the mass number of the core nucleus is also studied. (author)