CP in mixing (as in Ko system)
CLEO: Look for
ACP = 4Re(eB) = (c+ - c-)/(c+ + c-)
|Re(eB)| =0.004 ± 0.018
< 3.4% (95% c.l.) Expect about 10-3
OPAL’s time dependent measurement is similar:
|Re(eB)| = 0.001 ± 0.014 ± 0.003
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