Observation of the near-threshold intruder $0^{-}$ resonance in ${}^{12}$Be

J. Chen, S. M. Wang, H. T. Fortune +34

A resonant state at $3.21_{-0.04}^{+0.12}$\,MeV, located just above the one-neutron separation threshold, was observed for the first time in ${}^{12}$Be from the ${}^{11}$Be\,$(d,p)^{1…