Author/Authors :
Berbiche, Amine USTHB - Faculté de Physique - Laboratoire de Physique Théorique, Algeria , Fellah, Mohamed USTHB - Faculté de Physique - Laboratoire de Physique Théorique, Algeria , Fellah, Mohamed COMENA - Centre de Recherche Nucléaire d’Alger, Algeria , Allal, Nassima H. USTHB - Faculté de Physique - Laboratoire de Physique Théorique, Algeria , Allal, Nassima H. COMENA - Centre de Recherche Nucléaire d’Alger, Algeria
Abstract :
A formalism which enables one to strictly conserve the number of particles when taking into account the isovector pairing correlations is presented in the case of odd-mass nuclei. With this aim, we had to first establish the expression of the projector for such systems. Expressions of the ground state and its energy have been exhibited. The model has been numerically tested in the framework of a schematic model.