Charge asymmetry in K+- --> π+-γγinduced by the electromagnetic penguin operators

Abstract

The CP-violating charge asymmetry in decays K+- --> π+- γγ, which is induced by the electromagnetic penguin operators, has been studied both in thestandard model and in its extensions. Because of a large enhancement of the Wilson coefficients of the electromagnetic penguin operators in the supersymmetric extensions of the standard model, a significant upper bound on this charge asymmetry could be expected, and thus high precision measurements of this interesting CP-violating quantity might explore new physics effects beyond the standard model.

arXiv commentLaTeX, 10 pages, minor changes, Published version

References in corpus (30)

• Minimal Flavour Violation: an effective field theory approach
• A complete analysis of FCNC and CP constraints in general SUSY extensions of the standard model
• Chiral perturbation theory
• Universal Unitarity Triangle and Physics Beyond the Standard Model
• Chiral Perturbation Theory
• CP violation in kaon decays
• Rare Kaon Decays in the $1/N_c$-Expansion
• Studying ${\epsilon }^{\prime }/\epsilon$ in the Chiral Quark Model: ${\gamma }_5$-Scheme Independence and NLO Hadronic Matrix Elements
• CP Violation in Hyperon Decays from Supersymmetry
• A Lower Bound on sin 2βfrom Minimal Flavour Violation
• Observation of the Decay K^+ --> pi^+ gamma gamma
• Radiative Non-Leptonic Kaon Decays
• On soft breaking and CP phases in the supersymmetric standard model
• Observation of the Decay K- -> pi- mu+ mu- and Measurements of the Branching Ratios for K+/- -> pi+/- mu+ mu-
• Direct CP violation in K->3pi decays induced by SUSY chromomagnetic penguins
• Gluon dipole penguin contributions to ${\epsilon }^{\prime }/\epsilon$ and CP violation in Hyperon decays in the Standard Model
• Supersymmetric contributions to direct CP violation in K -> pi pi gamma decays
• Developments in Rare Kaon Decay Physics
• Search for the Decay Kl -> pi0 e+ e-
• First Lattice Calculation of the Electromagnetic Operator Amplitude <pi0|Q+|K0>
• Spin-1 resonance contributions to the weak Chiral Lagrangian: the vector field formulation
• Gluino-squark contributions to CP violations in the kaon system
• Electromagnetic penguin operators and direct CP violation in K --> pi l^+ l^-
• Reanalysis of CP Violation in K_L -> pi^+ pi^- gamma
• Vector Meson Exchanges and CP Asymmetry in $K^{\pm }\to {\pi }^{\pm }{\pi }^0$
• SUSY contributions to the charge asymmetry in K^+- -> pi^+- l^+ l^- decays
• Effective Weak Chiral Lagrangian to $\mathcal{O}(p^4)$ in the Chiral Quark Model
• T-odd correlations in charged Kl4 decays
• Radiative Rare Kaon Decays
• Radiative rare kaon decays

Cited by in corpus (5)

• Kaon Decays in the Standard Model
• New Physics and CP Violation in Hyperon Nonleptonic Decays
• The s ---> d gamma decay in and beyond the Standard Model
• Kaon decays shedding light on massless dark photons
• Probing New Physics in Charm Couplings with FCNC