Nuclear structure study around Z=28

Abstract

Yrast levels of Ni, Cu and Zn isotopes for $40\le N\le 50$ have been described by state-of-the-art shell model calculations with three recently available interactions using ${}^{56}$Ni as a core in the $f_{5/2}p{g}_{9/2}$ model space. The results are unsatisfactory viz. large $E(2^{+})$ for very neutron rich nuclei, small B(E2) values in comparison to experimental values. These results indicate an importance of inclusion of $\pi f_{7/2}$ and $\nu d_{5/2}$ orbitals in the model space to reproduce collectivity in this region.

12 pages, 14 figures

References in corpus (9)

• Novel features of nuclear forces and shell evolution in exotic nuclei
• Observation of isotonic symmetry for enhanced quadrupole collectivity in neutron-rich 62,64,66Fe isotopes at N=40
• Shell model study of single-particle and collective structure in neutron-rich Cr isotopes
• Large scale shell model calculations for odd-odd ${}^{58-62}$Mn isotopes
• Structure of ${}^{71-78}$Ga isotopes in $f_{5/2}p{g}_{9/2}$ and $fp{g}_{9/2}$ spaces
• Evidence for a beta-decaying 1/2- isomer in 71Ni
• Large scale shell model calculations for even-even ${}^{62-66}$Fe isotopes
• Shell-model results in $fp$ and $fp{g}_{9/2}$ spaces for ${}^{61,63,65}$Co isotopes
• Monopole Shift in Odd Neutron-Rich F Isotopes: A Shell Model Description

Cited by in corpus (1)

• Nuclear structure study with core excitations in Ni region: for $fp{g}_{9/2}$ space