Theoretical status of epsilon'/epsilon

Abstract

We review the theory of epsilon'/epsilon and present an updated phenomenological analysis using hadronic matrix elements from lattice QCD. The present status of the computation of epsilon'/epsilon, considering various approaches to the matrix-element evaluation, is critically discussed.

22 pages, 2 eps figures, based on the talks given by M.C. at "Les Rencontres de Physique de la Vallee d'Aoste", La Thuile (Italy), 27 February-4 March 2000 and by G.M. at the "XXXVth Rencontres de Moriond", Les Arcs 1800 (France), 11-18 March 2000

References in corpus (7)

• Strong Enhancement of ${\epsilon }^{\prime }/\epsilon$ Through Final State Interactions
• Renormalization Group Invariant Matrix Elements of DS = 2 and DI = 3/2 Four-Fermion Operators without Quark Masses
• pi^0-eta Mixing and CP Violation
• Scheme Dependence of Weak Matrix Elements in the $1/N_c$ Expansion
• Additional Isospin-Breaking Effects in ε^\prime/ε
• Combined analysis of the unitarity triangle and CP violation in the Standard Model
• Final State Interactions and epsilon'/epsilon: A Critical Look

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• The Holographic Principle
• Standard-model prediction for direct CP violation in $K\to \pi \pi$ decay
• Measurements of Direct CP Violation, CPT Symmetry, and Other Parameters in the Neutral Kaon System
• The Standard Model Prediction for epsilon'/epsilon
• CP Violation in the B System and Relations to $K\to \pi \nu \bar{\nu }$ Decays
• CP Violation in Hyperon Nonleptonic Decays within the Standard Model
• Constraining models with vector-like fermions from FCNC in K and B physics
• epsilon'/epsilon at the NLO: 10 Years Later
• Soft CP violation in K-meson systems
• What is the (epsilon'/epsilon)_exp Telling Us ?
• Chiral Logarithms in $\Delta S=1$ Kaon Decay Amplitudes in General Effective Flavor Theories