Shell Model Monte Carlo method in the $pn$-formalism and applications to the Zr and Mo isotopes

Details Shell Model Monte Carlo method in the $pn$-formalism and applications to the Zr and Mo isotopes Shell Model Monte Carlo method in the $pn$-formalism and applications to the Zr and Mo isotopes

2005-08-05

arxiv.org/abs/nucl-th/0508016v1

Phys.Rev. C73 (2006) 014302

Physics

Nuclear Physics

Nuclear Theory

Scientific paper

We report on the development of a new shell-model Monte Carlo algorithm which uses the proton-neutron formalism. Shell model Monte Carlo methods, within the isospin formulation, have been successfully used in large-scale shell-model calculations. Motivation for this work is to extend the feasibility of these methods to shell-model studies involving non-identical proton and neutron valence spaces. We show the viability of the new approach with some test results. Finally, we use a realistic nucleon-nucleon interaction in the model space described by (1p_1/2,0g_9/2) proton and (1d_5/2,2s_1/2,1d_3/2,0g_7/2,0h_11/2) neutron orbitals above the Sr-88 core to calculate ground-state energies, binding energies, B(E2) strengths, and to study pairing properties of the even-even 90-104 Zr and 92-106 Mo isotope chains.

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