First hint of non - standard CP violation from B → Φ K S decay SLAC - PUB - 9326 July 2002
نویسنده
چکیده
We comment on the implications of the recently measured CP asymmetry in B → ΦKS decay. The data disfavor the Standard Model at 2.7 σ and -if the trend persists in the future with higher statistics require the existence of CP violation beyond that in the CKM matrix. In particular, the b → ss̄s decay amplitude would require new contributions of comparable size to the Standard Model ones with an order one phase. While not every model can deliver such a large amount of CP and flavor violation, those with substantial FCNC couplings to the Z can reproduce the experimental findings.
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