Large Direct CP Violation in B -> phi phi Xs Decays

Abstract

We present a novel method to search for a new CP-violating phase in b -> ss~ss~s transition using B -> phi phi Xs decays, where Xs represents a final state with a specific strange flavor such as K+/-, K*+/-, or K+/-pi-/+. Direct CP violation can be enhanced due to an interference between an amplitude beyond the standard model (SM) and the SM decay amplitude through the eta_c resonance. We find that the CP asymmetry can be as large as 0.4 within the present experimental bounds on the b -> ss~s transition. These decays provide a very clean experimental signature and the background is expected to be small in particular at e+e- B factories. A simulation study for the B+/- -> phi phi K+/- decay shows that the statistical significance of CP violation can exceed 5 standard deviations with 10^9 B mesons.

12 pages, 2 figures, to appear in Physics Letters B

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Cited by in corpus (7)

• Study of the decay mechanism for B+ to p pbar K+ and B+ to p pbar pi+
• Time-Dependent CP Violation in $B^0\to P^0{P}^0{X}^0$ Decays
• CP violation in the partial width asymmetries for B^- -> pi^+ pi^- K^- and B^- -> K^+ K^- K^- decays
• Measurements of branching fractions and CP asymmetries and studies of angular distributions for B to phi phi K decays
• Observation of B+ -> Phi Phi K+ and evidence for B0 -> Phi Phi K0 below Eta_C threshold
• T violation in $B\to K\varphi \varphi$ decays
• Measurement of Branching Fraction and Search for $CP$ Violation in $B\to \varphi \varphi K$