A monopole-optimized effective interaction for tin isotopes

Abstract

We present a systematic configuration-interaction shell model calculation on the structure of light tin isotopes with a new global optimized effective interaction. The starting point of the calculation is the realistic CD-Bonn nucleon-nucleon potential. The unknown single-particle energies of the $1d_{3/2}$, $2s_{1/2}$ and $0h_{11/2}$ orbitals and the T=1 monopole interactions are determined by fitting to the binding energies of 157 low-lying yrast states in ${}^{102-132}$Sn. We apply the Hamiltonian to analyze the origin of the spin inversion between ${}^{101}$Sn and ${}^{103}$Sn that was observed recently and to explore the possible contribution from interaction terms beyond the normal pairing.

11 pages, 11 figures, 5 tables, version to appear in Phys. Rev. C

References in corpus (10)

• Structure of A=10-13 nuclei with two- plus three-nucleon interactions from chiral effective field theory
• Shell-model study of boron, carbon, nitrogen and oxygen isotopes based on monopole-based-universal interaction
• Z=50 shell gap near ${}^{100}$Sn from intermediate-energy Coulomb excitations in even-mass ${}^{106--112}$Sn isotopes
• Orbital dependent nucleonic pairing in the lightest known isotopes of tin
• High-spin states with seniority v=4,4,6 in 119-126Sn
• Energy expressions for n=3 and 4 systems in a single-j shell
• Shell-model study of mirror nuclei with modern charge-dependent \textit{NN} potential
• Shell-model study of spectroscopies and isospin structures in odd-odd $N=Z$ nuclei employing realistic \emph{NN} potentials
• Configuration Interactions Constrained by Energy Density Functionals
• Model space truncation in shell-model fits