The excited state of the $\hat{I}\pm$-particle: a benchmark study

Pierre-Yves Duerinck, Arnoldas Deltuva, Jérémy Dohet-Eraly +5

A benchmark study is performed for the excited state of ${}^4$He. When the Coulomb interaction is switched off, the ${}^4$He nucleus exhibits a bound excited state in the vicinity of $…