Anomalous population of ${}^{10}$He states in reactions with ${}^{11}$Li

P. G. Sharov, I. A. Egorova, L. V. Grigorenko

Structure with the lowest energy observed in the ${}^{10}$He spectrum populated in the proton knockout reaction with ${}^{11}$Li beam has a peak at $1.2-1.5$ MeV. This peak is usually…