Close-coupled model of Feshbach resonances in ultracold ${}^3$He* and ${}^4$He* atomic Collisions

T. M. F. Hirsch, D. G. Cocks, S. S. Hodgman

Helium atoms in the metastable $2^3{S}_1$ state (He${}^{\ast }$) have unique advantages for ultracold atomic experiments. However, there is no known accessible Feshbach resonance in He$^…