Anatomy of Prominent B and K Decays and Signatures of CP-Violating New Physics in the Electroweak Penguin Sector

Abstract

The recent observation of B_d -> pi^0 pi^0 at the B factories with a surprisingly large branching ratio represents a challenge for theory, and complements the amazingly small B_d -> pi^+ pi^- rate. We point out that all puzzling B -> pi pi features can be accommodated in the Standard Model (SM) through non-factorizable hadronic interference effects, extract the relevant parameters, and predict the CP asymmetries of B_d -> pi^0 pi^0. Using then SU(3) flavour-symmetry and plausible dynamical assumptions, we fix the hadronic B -> pi K parameters through their B -> pi pi counterparts, and determine the CKM angle gamma, with a result in remarkable accordance with the usual fits for the unitarity triangle. We may then analyse the B -> pi K system in the SM, where we find agreement with the experimental picture, with the exception of those observables that are significantly affected by electroweak (EW) penguins, thereby suggesting new physics (NP) in this sector. Indeed, a moderate enhancement of these topologies and a large CP-violating NP phase allow us to describe any currently observed feature of the B -> pi K modes, and to predict the CP-violating B_d -> pi^0 K_S observables. If we then restrict ourselves to a specific scenario where NP enters only through Z^0 penguins, we obtain a link to rare K and B decays, where the most spectacular NP effects are an enhancement of the K_L -> pi^0 nu nu_bar rate by one order of magnitude with BR(K_L -> pi^0 nu nu_bar) ~ 4 BR(K^+ -> pi^+ nu nu_bar), BR(K_L -> pi^0 e^+ e^-) = O(10^-10), (sin 2beta)_{pi nu nu_bar} < 0, and a large forward-backward CP asymmetry in B_d -> K^* mu^+ mu^-. We address also epsilon'/epsilon and other prominent decays, including B -> phi K and B -> J/psi K modes.

78 pages, 12 figures, LaTeX

References in corpus (35)

• Minimal Flavour Violation: an effective field theory approach
• QCD factorization for B->PP and B->PV decays
• More Model-Independent Analysis of b->s Processes
• A precision measurement of direct CP violation in the decay of neutral kaons into two pions
• Relations between ΔM_{s,d} and B_{s,d}\to μ\barμin Models with Minimal Flavour Violation
• Anomalous Dimension Matrix for Radiative and Rare Semileptonic B Decays up to Three Loops
• B -> pi pi, New Physics in B -> pi K and Implications for Rare K and B Decays
• Present Status of Inclusive Rare B Decays
• Complete NNLO QCD Analysis of B -> X_s l^+ l^- and Higher Order Electroweak Effects
• Measurements of Direct CP Violation, CPT Symmetry, and Other Parameters in the Neutral Kaon System
• Z' Mediated Flavor Changing Neutral Currents in B Meson Decays
• The rare decay B --> X_s l^+ l^- to NNLL precision for arbitrary dilepton invariant mass
• Extracting short-distance physics from K_{L,S} -> pi0 e+ e- decays
• SU(3) Relations and the CP Asymmetries in B Decays to ${\eta }^{\prime }{K}_S$, $\varphi K_S$ and $K^{+}{K}^{-}{K}_S$
• CP Violation in the B System and Relations to $K\to \pi \nu \bar{\nu }$ Decays
• New Strategies to Obtain Insights into CP Violation Through $B_s\to D_s^{\pm }{K}^{\mp },D_s^{\ast \pm }{K}^{\mp },...$ and $B_d\to D^{\pm }{\pi }^{\mp },D^{\ast \pm }{\pi }^{\mp },...$ Decays
• B_{s,d} -> l^+ l^- and K_L -> l^+ l^- in SUSY models with non-minimal sources of flavour mixing
• Forward--Backward Asymmetry in B -> X_s l^+ l^- at the NNLL Level
• NNLL corrections to the angular distribution and to the forward-backward asymmetries in b -> X_s l+ l-
• The B -> pi K Puzzle and its Relation to Rare B and K Decays
• New, Efficient and Clean Strategies to Explore CP Violation Through Neutral B Decays
• Delta I=1/2 and epsilon'/epsilon in Large-Nc QCD
• Rates and Asymmetries in $B\to K\pi$ Decays
• Measurement of the Electroweak Penguin Process B --> X(s) l+ l-
• A Possibility of large electro-weak penguin contribution in B -> K pi modes
• epsilon'/epsilon at the NLO: 10 Years Later
• Flavour SU(3) Symmetry in Charmless B Decays
• Evidence for CP-Violating Asymmetries in B0->pi+pi- Decays and Constraints on the CKM Angle phi2
• Interpreting the time-dependent CP asymmetry in $B^0\to {\pi }^0{K}_S$
• The CKM Matrix and The Unitarity Triangle: Another Look
• A Closer Look at $B_{d,s}\to D{f}_r$ Decays and Novel Avenues to Determine $\gamma$
• Shedding Light on the "Dark Side" of $B_d^0$--${\bar{B}}_d^0$ Mixing through $B_d\to {\pi }^{+}{\pi }^{-}$, $K\to \pi \nu \bar{\nu }$ and $B_{d,s}\to {\mu }^{+}{\mu }^{-}$
• Testing factorization in B -> D(*)X decays
• Search for the decay $K_S\to {\pi }^0\gamma \gamma$
• NNLL QCD Corrections to the Decay $B\to X_s{\ell }^{+}{\ell }^{-}$

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