Observation of parity violation in the Ω -→ΛK- decay

Academic Article


  • The α decay parameter in the process Ω -→ΛK- has been measured from a sample of 4.50 million unpolarized Ω- decays recorded by the HyperCP (E871) experiment at Fermilab and found to be [1.78±0.19(stat)±0.16(syst) ]×10-2. This is the first unambiguous evidence for a nonzero α decay parameter, and hence parity violation, in the Ω -→ΛK- decay. © 2005 Elsevier B.V. All rights reserved.
  • Authors

    Digital Object Identifier (doi)

    Author List

  • Lu LC; Burnstein RA; Chakravorty A; Chen YC; Choong WS; Clark K; Dukes EC; Durandet C; Felix J; Fu Y
  • Start Page

  • 11
  • End Page

  • 17
  • Volume

  • 617
  • Issue

  • 1-2