Gd8264146, a doubly magic nucleus

Abstract

Single proton and neutron states are extrapolated from the recently revised shell model states of $^{208}\mathrm{Pb}$ with the help of optimized Woods-Saxon potentials. A proton magic gap of 2.3 MeV at $Z=64$ and a neutron magic gap of 4.5 MeV at $N=82$ are established at mass number $A=146$.NUCLEAR STRUCTURE $^{146}\mathrm{Gd}$, estimates of proton and neutron shell gaps.