Shell model study of pairing correlations

Journal Article · Tue Jan 15 00:00:00 EST 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.77.014303· OSTI ID:21068037

Sheikh, J A ^[1]; Ganai, P A ^[1]; Singh, R P; Bhowmik, R K ^[2]; Frauendorf, S ^[3]

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1. Department of Physics, University of Kashmir, Srinagar, 190 006 (India)
2. Inter-University Accelerator Center, New Delhi, 110 067 (India)
3. Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 (United States)

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.

• OSTI ID: 21068037
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 77, Issue 1; Other Information: DOI: 10.1103/PhysRevC.77.014303; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
ASYMMETRY
CORRELATIONS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
ISOSPIN
NEUTRONS
NUCLEAR STRUCTURE
NUCLEAR TEMPERATURE
ODD-ODD NUCLEI
PAIRING INTERACTIONS
PROTONS
SHELL MODELS
SPHERICAL CONFIGURATION
TEMPERATURE DEPENDENCE