Developments in Rare Kaon Decay Physics

Abstract

We review the current status of the field of rare kaon decays. The study of rare kaon decays has played a key role in the development of the standard model, and the field continues to have significant impact. The two areas of greatest import are the search for physics beyond the standard model and the determination of fundamental standard-model parameters. Due to the exquisite sensitivity of rare kaon decay experiments, searches for new physics can probe very high mass scales. Studies of the k->pnn modes in particular, where the first event has recently been seen, will permit tests of the standard-model picture of quark mixing and CP violation.

One major revision to the text is the branching ratio of KL->ppg, based on a new result from KTeV. Several references were updated, with minor modifications to the text. A total of 48 pages, with 28 figures, in LaTeX; to be published in the Annual Review of Nuclear and Particle Science, Vol. 50, December 2000

References in corpus (14)

• 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
• Strong Enhancement of ${\epsilon }^{\prime }/\epsilon$ Through Final State Interactions
• Connections between epsilon'/epsilon and Rare Kaon Decays in Supersymmetry
• Search for the Decay $K_L\to {\pi }^0{\mu }^{+}{\mu }^{-}$
• Decay of pseudoscalars into lepton pairs and large-Nc QCD
• Further Search for the Decay K^+ --> pi^+ nu nubar
• A new measurement of the properties of the rare decay K -> pi+ e+ e-
• Observation of CP Violation in K(L)->pi+pi-e+e- Decays
• Search for the Decay K_L -> pi^0 nu nubar using pi^0 -> e^+ e^- gamma
• A New Measurement of the Rare Decay $K^{+}\to {\pi }^{+}{\mu }^{+}{\mu }^{-}$
• Measurement of Structure Dependent K^+ -> mu^+ nu gamma
• Upper limit on the Ks ---> 3 pi0 decay
• Experimental search for the decay mode K_L -> pi^0 gamma e^+ e^-

Cited by in corpus (17)

• Kaon Decays in the Standard Model
• Present Status of Inclusive Rare B Decays
• Experimental study of the decay $K_L^0\to {\pi }^0\nu \bar{\nu }$
• Waiting for Precise Measurements of K^+->pi^+ nu nu and K_L->pi^0 nu nu
• Prospects for a lattice computation of rare kaon decay amplitudes: $K\to \pi {\ell }^{+}{\ell }^{-}$ decays
• K^+ -> pi^+pi^0e^+e^-: a novel short-distance probe
• Vector-meson contributions do not explain the rate and spectrum in K_L -> pi0 gamma gamma
• Rare decays: theory vs. experiments
• K_L -> pi0 gamma gamma and the bound on the CP-conserving K_L -> pi0 e+e-
• Long-distance contribution to the forward-backward asymmetry in decays K+ --> pi+ l+ l-
• Tests of the Standard Model Using Muon Polarization Asymmetries in Kaon Decays
• Form factor in K+ --> pi+ pi0 gamma: interference versus direct emission
• Charge asymmetry in K+- --> π+-γγinduced by the electromagnetic penguin operators
• Estimate of B(K -> pi nu nubar) from Standard Model fits to lambda_t
• FCNC Processes from D-brane Instantons
• On the electron-positron energy asymmetry in K_L --> pi0 e+ e-
• Plans for Kaon Physics at BNL