Testing the Standard Model and searching for New Physics with $B_d\to \pi \pi$ and $B_s\to KK$ decays

Abstract

We propose to perform a combined analysis of $B\to \pi \pi$ and $B_s\to K^{+}{K}^{-}$ modes, in the framework of a global CKM fit. The method optimizes the constraining power of these decays and allows to derive constraints on NP contributions to penguin amplitudes or on the $B_s$ mixing phase. We illustrate these capabilities with a simplified analysis using the recent measurements by the LHCb Collaboration, neglecting correlations with other SM observables.

5 pages, 4 figures. v2: references and clarifications added, version published in JHEP

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Cited by in corpus (8)

• Exploiting dijet resonance searches for flavor physics
• CP violation in the B system
• Observation of $CP$ violation in two-body $B_{(\mathrm{s})}^0$-meson decays to charged pions and kaons
• New Strategy to Explore CP Violation with $B_s^0\to K^{-}{K}^{+}$
• Zooming into CP violation in $B_{(s)}\to hh$ Decays
• A phenomenological estimate of rescattering effects in $B_s\to K^{\ast 0}{\bar{K}}^{\ast 0}$
• What We've Learned from Heavy Flavour Experiments Since CKM2010
• Towards New Frontiers in CP Violation in B Decays