Emergence of an island of extreme nuclear isomerism at high excitation near ${}^{208}$Pb

S. G. Wahid, S. K. Tandel, Saket Suman +9

Metastable states with T${}_{1/2}$ = 8(2) ms in ${}^{205}$Bi and T${}_{1/2}$ = 0.22(2) ms in ${}^{204}$Pb, with $\approx$ 8 MeV excitation energy and angular momentum $\ge$ 22 $\hslash$,…