Momentum distributions and spectroscopic factors of doubly closed shell nuclei in correlated basis function theory

Journal Article · Tue May 15 04:00:00 EDT 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.75.054302· OSTI ID:20995264

Bisconti, C ^[1]; Saavedra, F Arias de ^[2]; Co, G ^[1]

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1. Dipartimento di Fisica, Universita del Salento and I.N.F.N., sezione di Lecce, I-73100 Lecce (Italy)
2. 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, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 5 Vol. 75; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CALCIUM 40
CALCIUM 48
CARBON 12
CORRELATIONS
DISTRIBUTION
LEAD 208
NUCLEON-NUCLEON POTENTIAL
OXYGEN 16
SHELL MODELS
SHELLS
SINGLE-PARTICLE MODEL
SPECTROSCOPIC FACTORS
THREE-BODY PROBLEM
WAVE FUNCTIONS