title: Adiabatic theory for anisotropic cold molecule collisions.
abstract: We developed an adiabatic theory for cold anisotropic collisions between slow atoms and cold molecules. It enables us to investigate the importance of the couplings between the projection states of the rotational motion of the atom about the molecular axis of the diatom. We tested our theory using the recent results from the Penning ionization reaction experiment (4)He(1s2s (3)S) + HD(1s(2)) → (4)He(1s(2)) + HD(+)(1s) + e(-) [Lavert-Ofir et al., Nat. Chem. 6, 332 (2014)] and demonstrated that the couplings have strong effect on positions of shape resonances. The theory we derived provides cross sections which are in a very good agreement with the experimental findings.
authors: Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel.
authors: Mariusz
authors: M
authors: Pawlak
authors: Department of Chemical Physics, Weizmann Institute of Science, Rehovot 76100, Israel.
authors: Yuval
authors: Y
authors: Shagam
authors: Department of Chemical Physics, Weizmann Institute of Science, Rehovot 76100, Israel.
authors: Edvardas
authors: E
authors: Narevicius
authors: Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel.
authors: Nimrod
authors: N
authors: Moiseyev