Shell model study of pairing correlations

J. A. Sheikh

doi:10.1103/PhysRevC.77.014303

Shell model study of pairing correlations

2008-01-04

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DOI：10.1103/PhysRevC.77.014303

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A systematic study of the pairing correlations as a function of temperature and angular momentum was performed in the sd-shell region using the spherical shell model approach. Pairing correlations were 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 the 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.

Keyword:

FOCK-BOGOLIUBOV THEORY

FINITE-TEMPERATURE

ODD-A

SYMMETRY

NUCLEI

Shell model study of pairing correlations

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