Measurement of the asymmetry in the decay Ω̄+→Λ̄K+→p̄π+K+

Academic Article


  • The asymmetry in the p̄ angular distribution in the sequential decay Ω̄+→Λ̄K+→p̄π+K+ has been measured to be ᾱΩᾱΛ=[+1.16±0.18(stat)±0. 17(syst)]×10-2 using 1.89×106 unpolarized Ω̄+ decays recorded by the HyperCP (E871) experiment at Fermilab. Using the known value of αΛ, and assuming that ᾱΛ=-αΛ, ᾱΩ=[-1.81±0.28(stat)±0.26(syst)]×10-2. A comparison between this measurement of ᾱΩᾱΛ and recent measurements of αΩαΛ made by HyperCP shows no evidence of a violation of CP symmetry. © 2006 The American Physical Society.
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    Author List

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

  • 96
  • Issue

  • 24