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

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.


Published in:
Physical Review Letters, 96, 24, 242001
Year:
2006
Other identifiers:
Scopus: 2-s2.0-33745315226
Laboratories:




 Record created 2010-11-05, last modified 2018-05-17


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)