Measurement of the asymmetry in the decay Omega+--LamdaKappa+--rhopi+Kappa+

Authors :: L C, Lu
R A, Burnstein
A, Chakravorty
Y C, Chen
W-S, Choong
K, Clark
E C, Dukes
C, Durandet
J, Felix
Y, Fu
G, Gidal
H R, Gustafson
T, Holmstrom
M, Huang
C, James
C M, Jenkins
T D, Jones
D M, Kaplan
M J, Longo
W, Luebke
K-B, Luk
K S, Nelson
H K, Park
J-P, Perroud
D, Rajaram
H A, Rubin
J, Volk
C G, White
S L, White
P, Zyla
Source :: Physical review letters. 96(24)
Publication Year :: 2006
Abstract: The asymmetry in the rho angular distribution in the sequential decay Omega+--LamdaKappa+--rhopi+Kappa+. has been measured to be alphaOmegaalphaLamda=[+1.16+/-0.18(stat)+/-0.17(syst)]x10(-2) using 1.89x10(6) unpolarized Omega+ decays recorded by the HyperCP (E871) experiment at Fermilab. Using the known value of alphaLamda, and assuming that alphaLamda=-alphaLamda, alphaOmega=[-1.81+/-0.28(stat)+/-0.26(syst)]x10(-2). A comparison between this measurement of alphaOmegaalphaLamda and recent measurements of alphaOmegaalphaLamda made by HyperCP shows no evidence of a violation of CP symmetry.

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