A puzzle on isomeric configurations in and around $N=126$ closed shell

Bhoomika Maheshwari, Deepika Choudhury, Ashok Kumar Jain

The puzzle of finding consistent nuclear configurations for explaining both the decay probabilities and moments of the ${9/2}^{-}$, $8^{+}$ and ${21/2}^{-}$ isomers in and around $N=12…