On the consistency between the observed amount of CP violation in the K- and Bd-systems within minimal flavor violation

Abstract

We reappraise the question whether the Standard Model, and Minimal Flavor Violating (MFV) models at large, can simultaneously describe the observed CP violation in the K- and Bd-systems. We find that CP violation in the Bd-system, measured most precisely through (sin 2 beta)_{J/psi Ks}, implies |epsilon_K^{SM}| = 1.78(25) x 10^{-3} for the parameter epsilon_K, measuring indirect CP violation in the K-system, to be compared with the experimental value |epsilon_K^{exp}| = 2.23(1) x 10^{-3}. To bring this prediction to 1 sigma agreement with experiment, we explore then the simplest new-physics possibility not involving new phases, namely that of MFV scenarios with no new effective operators besides the Standard Model ones. We emphasize the crucial input and/or measurements to be improved in order to probe this case. In particular we point out that this tension could be removed in this framework, with interesting signatures, e.g. correlated suppression patterns for rare K decay branching ratios. On the other hand, MFV contributions from new operators appear, in the calculable case of the MSSM, to worsen the situation. We finally explore some well-motivated new-physics scenarios beyond MFV, like those involving generic new contributions in Z-penguins.

arXiv comment10 pages, 3 figures. v2: typo corrected, references improved, small textual modifications. Version submitted to journal

References in corpus (61)

• Minimal Flavour Violation: an effective field theory approach
• RunDec: a Mathematica package for running and decoupling of the strong coupling and quark masses
• Universal Unitarity Triangle and Physics Beyond the Standard Model
• The $\Delta S=1$ Effective Hamiltonian Including Next-to-Leading Order QCD and QED Corrections
• Observation of Bs-Bsbar Oscillations
• A New Approach to a Global Fit of the CKM Matrix
• The Anatomy of ${\epsilon }^{\prime }/\epsilon$ Beyond Leading Logarithms with Improved Hadronic Matrix Elements
• Physical Results from 2+1 Flavor Domain Wall QCD and SU(2) Chiral Perturbation Theory
• The Two-Loop Anomalous Dimension Matrix for $\Delta S=1$ Weak Non-Leptonic Decays I: $\mathcal{O}({\alpha }_s^2)$
• Two--Loop Anomalous Dimension Matrix for $\Delta S=1$ Weak Non-Leptonic Decays II: $\mathcal{O}({\alpha }_e{\alpha }_s)$
• Anatomy of Prominent B and K Decays and Signatures of CP-Violating New Physics in the Electroweak Penguin Sector
• Enhancement of the $K_L$ -- $K_S$ Mass Difference by Short Distance QCD Corrections Beyond Leading Logarithms
• 2000 CKM-Triangle Analysis A Critical Review with Updated Experimental Inputs and Theoretical Parameters
• A precision measurement of direct CP violation in the decay of neutral kaons into two pions
• New measurement of the K+ => pi+,nu,nubar branching ratio
• Electromagnetic Logarithms in B -> X_s l+ l-
• Scalar flavour-changing neutral currents in the large-tan(beta) limit
• Correlations among new CP violating effects in Delta F = 2 observables
• The Complete |Delta S|=2 Hamiltonian in the Next-To-Leading Order
• Possible Indications of New Physics in Bd-mixing and in sin(2 beta) Determinations
• Charm Quark Contribution to K+ -> pi+ nu anti-nu at Next-to-Next-to-Leading Order
• 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
• The Rare Decay K^+ -> pi^+ nu nubar at the Next-to-Next-to-Leading Order in QCD
• Light-quark Loops in K->pi nu nu
• Indirect CP-Violation in the Neutral Kaon System Beyond Leading Logarithms
• Connections between epsilon'/epsilon and Rare Kaon Decays in Supersymmetry
• The Effect of Penguins in the B_d to J/psi K^0 CP asymmetry
• B, D and K decays
• Supersymmetric contributions to rare kaon decays: beyond the single mass-insertion approximation
• Exploring the flavour structure of the MSSM with rare K decays
• B-Bbar mixing in unquenched lattice QCD
• $\Delta M_s/\Delta M_d$, $\sin 2\beta$ and the angle $\gamma$ in the Presence of New $\Delta F=2$ Operators
• Upper Bounds on $K\to \pi \nu \bar{\nu }$ and $K_L\to {\pi }^0{e}^{+}{e}^{-}$ from ${\epsilon }^{\prime }/\epsilon$ and $K_L\to {\mu }^{+}{\mu }^{-}$
• Lattice QCD with two dynamical flavors of domain wall quarks
• Kaon B parameter from quenched Lattice QCD
• Neutral kaon mixing from 2+1 flavor Domain Wall QCD
• $K\to \pi \nu \bar{\nu }$: A Model Independent Analysis and Supersymmetry
• Upper Bounds on Rare K and B Decays from Minimal Flavour Violation
• The Golden Modes B^0 -> J/psi K_{S,L} in the Era of Precision Flavour Physics
• The MFV limit of the MSSM for low tan(beta): meson mixings revisited
• epsilon'/epsilon at the NLO: 10 Years Later
• $B_s^0-\overline{B_s^0}$ Mixing Parameters from Unquenched Lattice QCD
• The Kaon B-parameter from Quenched Domain-Wall QCD
• Unquenched determination of the kaon parameter B_K from improved staggered fermions
• Minimal Flavour Violation Waiting for Precise Measurements of Delta M_s, S_{psi phi}, A^s_SL, |V_ub|, gamma and B^0_{s,d} -> mu+ mu-
• Electroweak effects in radiative B decays
• Precision tests of the Standard Model with leptonic and semileptonic kaon decays
• Precision tests of the SM with leptonic and semileptonic kaon decays
• Determining the Sign of the Z-Penguin Amplitude
• The Relevance of the Dipole Penguin Operators in ${\epsilon }^{\prime }/\epsilon$
• B_K with two flavors of dynamical overlap fermions
• The O(alpha_em/alpha_s) correction to BR[B -> X_s gamma]
• Supersymmetric large tan(beta) corrections to DeltaM_(d,s) and B_(d,s) -> mu+mu- revisited
• Kaon physics: a lattice perspective
• Lower Bounds on Delta M_{s,d} from Constrained Minimal Flavour Violation
• Difference of \tilde εand εin fitting the parameters of CKM matrix
• An Analytic Formula and an Upper Bound for epsilon'/epsilon in the Standard Model
• The value of B_K from the experimental data on CP-violation in K-mesons and up-to-date values of CKM matrix parameters
• Precise determination of $B_K$ and light quark masses in quenched domain-wall QCD
• Large |Vub|: A challenge for the Minimal Flavour Violating MSSM

Cited by in corpus (27)

• Anatomy and Phenomenology of FCNC and CPV Effects in SUSY Theories
• Anatomy of New Physics in B-Bbar mixing
• Lattice QCD inputs to the CKM unitarity triangle analysis
• A Global Likelihood for Precision Constraints and Flavour Anomalies
• Quark flavour observables in the Littlest Higgs model with T-parity after LHC Run 1
• Phenomenology of a Gauged SU(3)^3 Flavour Model
• Continuum Limit of $B_K$ from 2+1 Flavor Domain Wall QCD
• The neutral kaon mixing parameter B_K from unquenched mixed-action lattice QCD
• Phenomenology of SUSY SU(5) with type I+III seesaw
• Flavour violation in supersymmetric SO(10) unification with a type II seesaw mechanism
• Kaon physics: a lattice perspective
• Flavour Theory: 2009
• Unitarity Triangle Without Semileptonic Decays
• CP violation and the 4th generation
• Flavour Physics in the Soft Wall Model
• Implications of large dimuon CP asymmetry in B_{d,s} decays on minimal flavor violation with low tan beta
• FCNC, CP violation and implications for some rare decays in an SU(4)_L X U(1)_X extension of the standard model
• From Flavour to SUSY Flavour Models
• Flavour and Collider Interplay for SUSY at LHC7
• Probing Yukawa Unification with K and B Mixing
• Probing New Physics in Charm Couplings with FCNC
• Testing the CKM Picture of Flavour and CP Violation in Rare K and B Decays and Particle-Antiparticle Mixing
• RGE Behaviour of SUSY with a U(2)^3 symmetry
• Status of the Unitarity Triangle Analysis
• Messages on Flavour Physics Beyond the Standard Model
• Flavour Theory and the LHC Era
• Phenomenology from the Lattice