Low Energy States of ${}_{31}^{81}G{a}_{50}$ : Elements on the Doubly-Magic Nature of ${}^{78}$Ni

Abstract

Excited levels were attributed to ${}_{31}^{81}$Ga${}_{50}$ for the first time which were fed in the $\beta$-decay of its mother nucleus ${}^{81}$Zn produced in the fission of ${}^{nat}$U using the ISOL technique. We show that the structure of this nucleus is consistent with that of the less exotic proton-deficient N=50 isotones within the assumption of strong proton Z=28 and neutron N=50 effective shell effects.

4 pages, REVTeX 4, 5 figures (eps format)

References in corpus (2)

• Collapse of the N=28 shell closure in ${}^{42}$Si
• Measurement of excited states in 40Si and evidence for weakening of the N=28 shell gap

Cited by in corpus (6)

• Evolution of the N=50 shell gap energy towards ${}^{78}$Ni
• Nuclear spins, magnetic moments and quadrupole moments of Cu isotopes from N = 28 to N = 46: probes for core polarization effects
• Neutron spectroscopic factors of Ni isotopes from transfer reactions
• Benchmarking projected Hartree-Fock as an approximation
• Fast-timing study of ${}^{81}$Ga from the $\beta$ decay of ${}^{81}$Zn
• Improving the predictive power of empirical shell-model Hamiltonians