Projected multicluster model with Jastrow and linear state dependent correlations for $12 \leq A \leq 16$ nuclei

Details Projected multicluster model with Jastrow and linear state dependent correlations for $12 \leq A \leq 16$ nuclei Projected multicluster model with Jastrow and linear state dependent correlations for $12 \leq A \leq 16$ nuclei

2004-05-11

arxiv.org/abs/nucl-th/0405027v1

Phys.Rev. C70 (2004) 054315

Physics

Nuclear Physics

Nuclear Theory

19 pages, 6 figures

Scientific paper

10.1103/PhysRevC.70.054315

Variational wave functions based on a Margenau-Brink cluster model with short range and state dependent correlations, and angular momentum projection are obtained for some nuclei with $12 \leq A \leq 16$. The calculations have been carried out starting from the nucleon-nucleon interaction by using the Variational Monte Carlo method. The configuration used consists of three alpha clusters located at the apexes of an equilateral triangle, and an additional cluster, not necessarily of alpha type, forming a tetrahedron. This cluster is located at the top of its height. Short-range and state dependent correlations are included by means of a central Jastrow factor and a linear operatorial correlation factor respectively. Angular momentum projection is performed by using the Peierls-Yoccoz operators. Optimal structures are obtained for all the nuclei studied. Some aspects of our methodology have been tested by comparing with previous calculations carried out without short range correlations. The binding energy, the root mean square radius, and the one- and two-body densities are reported. The effects of correlations on both the energy and the nucleon distribution are analyzed systematically.

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