title: Parity violation observed in the beta decay of magnetically trapped 82Rb atoms.
abstract: Laser cooling and atomic trapping techniques have been employed to confine polarized 82Rb atoms ( T1/2 = 75 s) in a magnetic time-orbiting-potential (TOP) trap. We have observed the parity-violating correlation between the emitted positron momentum and the parent nuclear spin as a continuous function of angle and positron energy for this pure Gamow-Teller (GT) transition. These proof-of-principle measurements demonstrate the utility of exploring fundamental symmetries in a TOP trap and the steps required to improve sensitivity in the search for physics beyond the standard model.
authors: Los Alamos National Laboratory, New Mexico 87547, USA.
authors: S G
authors: SG
authors: Crane
authors: S J
authors: SJ
authors: Brice
authors: A
authors: A
authors: Goldschmidt
authors: R
authors: R
authors: Guckert
authors: A
authors: A
authors: Hime
authors: J J
authors: JJ
authors: Kitten
authors: D J
authors: DJ
authors: Vieira
authors: X
authors: X
authors: Zhao