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arXiv · 0708.4268

Shell model study of the pairing correlations

J. A. Sheikh·P. A. Ganai·R. P. Singh·R. K. Bhowmick·S. Frauendorf
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Abstract

A systematic study of the pairing correlations as a function of temperature and angular momentum has been performed in the sd-shell region using the spherical shell model approach. The pairing correlations have been derived for even-even, even-odd and odd-odd systems near N=Z and also for the asymmetric case of N=Z+4. The results indicate that the pairing content and the behavior of pair correlations is similar in even-even and odd-mass nuclei. For odd-odd N=Z system, angular momentum I=0 state is an isospin, t=1 neutron-proton paired configuration. Further, these t=1 correlations are shown to be dramatically reduced for the asymmetric case of N=Z+4. The shell model results obtained are qualitatively explained within a simplified degenerate model.

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J. A. Sheikh, P. A. Ganai, R. P. Singh, R. K. Bhowmick, S. Frauendorf. 2007-12-19. Shell model study of the pairing correlations. https://doi.org/10.1103/physrevc.77.014303

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