Discovery of a new isomeric state in ${}^{68}$Ni: Evidence for a highly-deformed proton intruder state

A. Dijon, E. Clément, G. De France +26

We report on the observation of a new isomeric state in ${}^{68}$Ni. We suggest that the newly observed state at 168(1) keV above the first 2${}^{+}$ state is a $\pi (2p-2h)$ 0${}^{+}$ state…