New CP phase of Bs-over(B, ̄)s mixing on T violation in Bd (s) → K* (φ{symbol}) ℓ+-

Chuan Hung Chen, Chao Qiang Geng, Lin Li

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14 Citations (Scopus)


A large CP-violating phase uncovered recently by CDF and DØ Collaborations in the time-dependent CP asymmetry (CPA) of the Bs → J / Ψ φ{symbol} decay clearly indicates that a non-Cabibbo-Kobayashi-Maskawa (CKM) phase has to be brought into the b → s transition. We find that the model with SU (2)L singlet exotic quarks cannot only provide the new phase induced from the Z-mediated flavor changing neutral current (FCNC) at tree level, but also strongly relate the Bs-over(B, ̄)s mixing, Bq → Vq+- (Vd [s] = K* [φ{symbol}]) and Bs → μ+ μ- together. In particular, we show that the new CP phase can be unambiguously exposed by the large statistical significances of T violating observables in Bq → Vq+-, while the branching ratio of Bs → μ+ μ- can be enhanced to be O (10-8).

Original languageEnglish
Pages (from-to)374-377
Number of pages4
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number4-5
Publication statusPublished - 2009 Jan 5

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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