Momentum distributions and spectroscopic factors of doubly closed shell nuclei in correlated basis function theory
- Dipartimento di Fisica, Universita del Salento and I.N.F.N., sezione di Lecce, I-73100 Lecce (Italy)
- Departamento de Fisica Atomica, Molecular y Nuclear, Universidad de Granada, E-18071 Granada (Spain)
The momentum distributions, natural orbits, spectroscopic factors, and quasihole wave functions of the {sup 12}C, {sup 16}O, {sup 40}Ca, {sup 48}Ca, and {sup 208}Pb doubly closed shell nuclei have been calculated in the framework of the correlated basis function theory, by using the Fermi hypernetted chain resummation techniques. The calculations have been done by using the realistic Argonne v{sub 8}{sup '} nucleon-nucleon potential, together with the Urbana IX three-body interaction. Operator dependent correlations, which consider channels up to the tensor ones, have been used. We found noticeable effects produced by the correlations. For high momentum values, the momentum distributions show large enhancements with respect to the independent particle model results. Natural orbit occupation numbers are depleted by about 10% with respect to the independent particle model values. The effects of the correlations on the spectroscopic factors are larger on the most deeply bound states.
- OSTI ID:
- 20995264
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 75, Issue 5; Other Information: DOI: 10.1103/PhysRevC.75.054302; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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