First Lattice Calculation of the Electromagnetic Operator Amplitude <pi0|Q+|K0>

Abstract

We present the first lattice calculation of the matrix element of the electromagnetic operator <pi0|Q+|K0>, where Q+ = (Q_d e/16 pi^2)* (\bar s_L sigma{mu,nu} F{mu,nu} d_R + \bar s_R sigma{mu,nu} F{mu,nu} d_L). This matrix element plays an important role, since it contributes to enhance the CP violating part of the K_L -> pi0 e+ e- amplitude in supersymmetric extensions of the Standard Model.

12 pages, 3 figures

References in corpus (15)

• Observation of Direct CP Violation in K_{S,L} to ππDecays
• A new measurement of direct CP violation in two pion decays of the neutral kaon
• Connections between epsilon'/epsilon and Rare Kaon Decays in Supersymmetry
• Three loop MSbar tensor current anomalous dimension in QCD
• Standard Model Confronting New Results for epsilon'/epsilon
• Seesaw-constrained MSSM, Solution to the SUSY CP Problem and a Supersymmetric Explanation of ${\epsilon }^{\prime }/\epsilon$
• Supersymmetric CP violation ${\epsilon }^{\prime }/\epsilon$ due to asymmetric A-matrix
• Analysis of ε'/εin the 1/N_c Expansion
• Can Flavor-Independent Supersymmetry Soft Phases Be the Source of All CP Violation?
• CP Violation in Hyperon Decays from Supersymmetry
• Epsilon' from supersymmetry with non universal A terms?
• Fully supersymmetric CP violations in the kaon system
• Direct CP violation in K->3pi decays induced by SUSY chromomagnetic penguins
• Supersymmetric contributions to direct CP violation in K -> pi pi gamma decays
• Combined analysis of the unitarity triangle and CP violation in the Standard Model

Cited by in corpus (20)

• Beta Decays and Non-Standard Interactions in the LHC Era
• Search for the Rare Decay KL --> pi0 ee
• B, D and K decays
• FCNC portals to the dark sector
• KL to pi0 e+ e- and KL to pi0 mu+ mu- : A binary star on the stage of flavor physics
• Rare Kaon Decays on the Lattice
• Matrix elements of the electromagnetic operator between kaon and pion states
• Scalar doublet models confront $\tau$ and $b$ anomalies
• A no-go theorem for non-standard explanations of the $\tau \to K_S\pi {\nu }_{\tau }$ CP asymmetry
• Nucleon matrix elements of the antisymmetric quark tensor
• The s ---> d gamma decay in and beyond the Standard Model
• T-odd correlations in radiative K_l3^+ decays and chiral perturbation theory
• $K\to \pi$ matrix elements of the chromomagnetic operator on the lattice
• The chromomagnetic operator on the lattice
• K -> pi matrix elements of the chromagnetic operator on the lattice
• Electromagnetic penguin operators and direct CP violation in K --> pi l^+ l^-
• SUSY contributions to the charge asymmetry in K^+- -> pi^+- l^+ l^- decays
• Charge asymmetry in K+- --> π+-γγinduced by the electromagnetic penguin operators
• T-odd correlations in charged Kl4 decays
• Matrix Elements of Light Quarks