Rotationally cold OH${}^{-}$ ions in the cryogenic electrostatic ion-beam storage ring DESIREE

H. T. Schmidt, G. Eklund, K. C. Chartkunchand +14

We apply near-threshold laser photodetachment to characterize the rotational quantum level distribution of OH${}^{-}$ ions stored in the cryogenic ion-beam storage ring, DESIREE, at St…