Search for direct CP violation in nonleptonic decays of charged Xi and lambda hyperons
A search for direct CP violation in the nonleptonic decays of hyperons has been performed. In comparing the product of the decay parameters, alpha(Xi)alpha(Lambda), in terms of an asymmetry parameter, A(XiLambda), between hyperons and antihyperons in the charged Xi-->Lambdapi and Lambda-->ppi decay sequence, we found no evidence of direct CP violation. The parameter A(XiLambda) was measured to be 0.012+/-0.014.
Luk
KB
Physics Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720 and Department of Physics, University of California, Berkeley, California 94720, USA.
Diehl
HT
Duryea
J
Guglielmo
G
Heller
K
Ho
PM
James
C
Johns
K
Longo
MJ
Rameika
R
Teige
S
Thomson
GB
Zou
Y