(ΔA_{CP})_{LHCb} and the fourth generation

preprint2012arXivOpen access

Abstract

LHCb collaboration measured CPV at the level of one percent in the difference of assymetries in D0(Dˉ0)→π+π−,K+K−D^0(\bar D^0)\to π^+ π^-, K^+ K^- decays. If confirmed on a larger statistics and final systematics this would mean New Physics manifestation. The fourth quark-lepton generation can be responsible for the observed effect.

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