title: Suppression of angular forces in collisions of non-S-state transition metal atoms.
abstract: Angular momentum transfer is expected to occur rapidly in collisions of atoms in states of nonzero angular momenta due to the large torque of angular forces. We show that despite the presence of internal angular momenta transition metal atoms interact in collisions with helium effectively as spherical atoms and angular momentum transfer is slow. Thus, magnetic trapping and sympathetic cooling of transition metal atoms to ultracold temperatures should be readily achievable. Our results open up new avenues of research with a broad class of ultracold atoms.
authors.affiliation: Harvard-MIT Center for Ultracold Atoms, Department of Physics, Harvard University, Cambridge, MA 02138, USA.
authors.forename: R V
authors.initials: RV
authors.lastname: Krems
authors.forename: J
authors.initials: J
authors.lastname: Kłos
authors.forename: M F
authors.initials: MF
authors.lastname: Rode
authors.forename: M M
authors.initials: MM
authors.lastname: Szcze Sniak
authors.forename: G
authors.initials: G
authors.lastname: Chałasiński
authors.forename: A
authors.initials: A
authors.lastname: Dalgarno