Marc Knecht

activity

19942026

γ γ \to π^{0} π^{0}

in Generalized Chiral Perturbation Theory

26 citations · 54 across the 10 of their papers we have counts for

collaborators

10 papers

hep-ph2026

Dispersive description of the $K \to π ℓ^{+} ℓ^{-}$ radiative amplitudes

Véronique Bernard, Sébastien Descotes-Genon, Marc Knecht +1

We propose a description of the $K^{+}$ , $K_{S}$ radiative decay form factors $W_{+}$ , $W_{S}$ based on general properties of analyticity and unitarity. Starting from the simple considerat…

hep-ph2025

A dispersive approach to the CP conserving $K \to π ℓ^{+} ℓ^{-}$ radiative decays

Véronique Bernard, Sébastien Descotes-Genon, Marc Knecht +1

We reconsider the constraints on the form factors $W_{+} (s)$ and $W_{S} (s)$ , describing the radiative decay modes $K^{+} \to π^{+} ℓ^{+} ℓ^{-}$ and $K_{S} \to π^{0} ℓ^{+} ℓ^{-}$ , associated wi…

hep-ph2025

Kaon Physics: A Cornerstone for Future Discoveries

Jason Aebischer, Atakan Tugberk Akmete, Riccardo Aliberti +153

The kaon physics programme, long heralded as a cutting-edge frontier by the European Strategy for Particle Physics, continues to stand at the intersection of discovery and innovati…

hep-ph2024

Predictions for the rare kaon decays $K_{S, L} \to π^{0} ℓ^{+} ℓ^{-}$ from QCD in the limit of a large number of colours

Giancarlo D'Ambrosio, Marc Knecht

The long-distance and non-local parts of the form factors describing the single-photon mediated $K_{S, L} \to π^{0} γ^{*} \to π^{0} ℓ^{+} ℓ^{-}$ ( $ℓ = e, μ$ ) transitions in the standard mod…

hep-ph2024

A dispersive study of final-state interactions in $K \to π π π$ amplitudes

Véronique Bernard, Sébastien Descotes-Genon, Marc Knecht +1

A system of dispersive representations of the Omnès-Khuri-Treiman-Sawyer-Wali type for the final-state interactions in the amplitudes of the $K \to π π π$ weak transitions is construct…

hep-ph2003★ 7 cited

Light-quark dynamics

J. Gasser

I present introductory lectures on the use of effective field theory methods in QCD at low energies.

hep-ph2003★ 7 cited

The anomalous magnetic moment of the muon: a theoretical introduction

Marc Knecht

These notes, based on the lectures delivered at the 2003 Schladming School of Theoretical Physics, provide an introduction to the theory of the anomalous magnetic moments of the mu…

hep-ph2003★ 7 cited

CP Violation in B and K Decays: 2003

Andrzej J. Buras

These lectures give a brief description of CP violation in B and K meson decays with particular emphasize put on the determination of the CKM matrix. The following topics will be d…

hep-ph2003★ 7 cited

Neutrino Physics - Theory

W. Grimus

We discuss recent developments in neutrino physics and focus, in particular, on neutrino oscillations and matter effects of three light active neutrinos. Moreover, we discuss the d…

hep-ph1994★ 26 cited

The Reaction $γ γ \to π^{0} π^{0}$ in Generalized Chiral Perturbation Theory

M. Knecht, B. Moussallam, J. Stern

The cross section for $γ γ \to π^{0} π^{0}$ and the pion polarizabilities are computed, within generalized chiral perturbation theory, in the full one loop approximation, {\it i.e.} up to…

Dispersive description of the K→πℓ+ℓ− radiative amplitudes

A dispersive approach to the CP conserving K→πℓ+ℓ− radiative decays

Kaon Physics: A Cornerstone for Future Discoveries

Predictions for the rare kaon decays KS,L​→π0ℓ+ℓ− from QCD in the limit of a large number of colours

A dispersive study of final-state interactions in K→πππ amplitudes

Light-quark dynamics

The anomalous magnetic moment of the muon: a theoretical introduction

CP Violation in B and K Decays: 2003

Neutrino Physics - Theory

The Reaction γγ→π0π0 in Generalized Chiral Perturbation Theory

Dispersive description of the $K \to π ℓ^{+} ℓ^{-}$ radiative amplitudes

A dispersive approach to the CP conserving $K \to π ℓ^{+} ℓ^{-}$ radiative decays

Predictions for the rare kaon decays $K_{S, L} \to π^{0} ℓ^{+} ℓ^{-}$ from QCD in the limit of a large number of colours

A dispersive study of final-state interactions in $K \to π π π$ amplitudes

The Reaction $γ γ \to π^{0} π^{0}$ in Generalized Chiral Perturbation Theory