Large-basis shell-model calculation of the10C→10BFermi matrix element

- th / 9 70 80 32 v 1 1 8 A ug 1 99 7 Large - basis shell - model calculation of 10 C → 10 B Fermi matrix element

Large-basis shell-model calculations for p-shell nuclei

Results of large-basis shell-model calculations for nuclei with A = 7 − 11 are presented. The effective interactions used in the study were derived microscopically from the Reid93 potential and take into account the Coulomb potential as well as the charge dependence of T = 1 partial waves. For A = 7, a 6h̄Ω model space was used, while for the rest of the studied nuclides, the calculations were p...

Large-basis shell model studies of light nuclei with a multivalued G-matrix effective interaction.

Large-basis shell model studies of low-lying excitations in light nuclei from He to Li have been performed with a multivalued G-matrix effective interaction, as recently suggested by Haxton et al.. Calculations were performed relative to the vacuum (“no core”) using very large, separable model spaces containing all excitations with unperturbed energies up to 8h̄Ω. Using G matrices derived from a...

Back-calculation of mechanical parameters of shell and balls materials from discrete element method simulations

Discrete Element Method (DEM) is extensively used for mathematical modeling and simulating the behavior of discrete discs and discrete spheres in two and three dimensional space, respectively. Prediction of particles flow regime, power draw and kinetic energy for a laboratory or an industrial mill is possible by DEM simulation. In this article, a new approach was used to assess the main paramet...

Realistic shell model calculation of 2νββ nuclear matrix elements and role of shell structure in intermediate states

We discuss two conditions needed for correct computation of 2νββ nuclear matrix-elements within the realistic shell-model framework. An algorithm in which intermediate states are treated based on Whitehead’s moment method is inspected, by taking examples of the double GT+ transitions 36Ar → 36S, 54Fe → 54Cr and 58Ni → 58Fe. This algorithm yields rapid convergence on the 2νββ matrix-elements, ev...