Exploring B_{d,s}-> KK decays through flavour symmetries and QCD-factorisation

Abstract

We present a new analysis of B_{d,s}->KK modes within the SM, relating them in a controlled way through SU(3)-flavour symmetry and QCD-improved factorisation. We propose a set of sum rules for B_{d,s}-> K^0{\bar K}^0 observables. We determine B_s-> KK branching ratios and CP-asymmetries as functions of A_{dir}(B_d-> K^0{\bar K}^0), pointing out a conflict between BR(B_s-> K+K-) in the SM and data. Finally, we predict the amount of U-spin breaking between B_d-> pi+pi- and B_s-> K+K-.

4 pages, 2 figures. Enlarged discussion on 1/mb contributions

References in corpus (21)

• CP Violation and the CKM Matrix: Assessing the Impact of the Asymmetric B Factories
• QCD factorization for exclusive, non-leptonic B meson decays: General arguments and the case of heavy-light final states
• QCD factorization for B->PP and B->PV decays
• QCD Factorization in B -> pi K, pi pi Decays and Extraction of Wolfenstein Parameters
• Anatomy of Prominent B and K Decays and Signatures of CP-Violating New Physics in the Electroweak Penguin Sector
• New Strategies to Extract $\beta$ and $\gamma$ from $B_d\to {\pi }^{+}{\pi }^{-}$ and $B_s\to K^{+}{K}^{-}$
• Non-factorizable Contributions to $B\to \pi \pi$ Decays
• Two body B decays with isosinglet final states in SCET
• Exploring CP Violation through Correlations in B --> pi K, B_d --> pi^+pi^-, B_s --> K^+K^- Observable Space
• Improved Measurements of Branching Fractions for B->Kpi, pipi and KK Decays
• Searching for New Physics in Non-Leptonic B Decays
• Improved Measurements of CP-Violating Asymmetry Amplitudes in B0 -> pi+pi- Decays
• Improved Evidence for Direct CP Violation in B0 --> pi+ pi- Decays and Model-Independent Constraints on phi_2
• Waiting for the Discovery of B^0_d -> K^0 \bar K^0
• Bd^0(t)->pi^+pi^- and Bs^0(t)-> K^+ K^- Decays: A Tool to Measure New-Physics Parameters
• Supersymmetric Contributions to Bs->K+K-
• Testing the Standard Model with Bs-> K^+ K^- Decays
• Highlights of the B-Physics Landscape
• Weak Phase $\gamma$ from $B_s(t)\to K^{+}{K}^{-}$
• Evidence for B+ -> K0barK+ and B0 -> K0K0bar, and Measurement of the Branching Fraction and Search for Direct CP Violation in B+ -> K0pi+
• Exploring the Unitarity Triangle through CP violation observables in $B_s\to K^{+}{K}^{-}$

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• A Comprehensive Analysis of Hadronic b->s Transitions in a Family Non-universal Z' Model
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• A new $B$-flavour anomaly in $B_{d,s}\to K^{\ast 0}{\bar{K}}^{\ast 0}$: anatomy and interpretation
• Penguin-mediated B_(d,s)->VV decays and the Bs - anti-Bs mixing angle
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