title: First spin flipping of a stored spin-1 polarized beam.
abstract: We recently studied spin flipping of a 270 MeV vertically polarized deuteron beam stored in the Indiana University Cyclotron Facility Cooler Ring. We adiabatically swept an rf solenoid's frequency through an rf-induced spin resonance and observed its effect on the deuterons' vector and tensor polarizations. After optimizing the resonance crossing rate and maximizing the solenoid's voltage, we measured a vector spin-flip efficiency of 94.2%+/-0.3%. We also found striking behavior of the spin-1 tensor polarization.
authors.affiliation: Spin Physics Center, University of Michigan, Ann Arbor, Michigan 48109-1120, USA.
authors.forename: V S
authors.initials: VS
authors.lastname: Morozov
authors.forename: Z B
authors.initials: ZB
authors.lastname: Etienne
authors.forename: M C
authors.initials: MC
authors.lastname: Kandes
authors.forename: A D
authors.initials: AD
authors.lastname: Krisch
authors.forename: M A
authors.initials: MA
authors.lastname: Leonova
authors.forename: D W
authors.initials: DW
authors.lastname: Sivers
authors.forename: V K
authors.initials: VK
authors.lastname: Wong
authors.forename: K
authors.initials: K
authors.lastname: Yonehara
authors.forename: V A
authors.initials: VA
authors.lastname: Anferov
authors.forename: H O
authors.initials: HO
authors.lastname: Meyer
authors.forename: P
authors.initials: P
authors.lastname: Schwandt
authors.forename: E J
authors.initials: EJ
authors.lastname: Stephenson
authors.forename: B
authors.initials: B
authors.lastname: von Przewoski