Nuclear structure beyond the neutron drip line: the lowest energy states in ${}^9$He via their T=5/2 isobaric analogs in ${}^9$Li

E. Uberseder, G. V. Rogachev, V. Z. Goldberg +10

The level structure of the very neutron rich and unbound ${}^9$He nucleus has been the subject of significant experimental and theoretical study. Many recent works have claimed that…