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Article Dans Une Revue Phys.Lett.B Année : 2022

Determination of the structure of the $K \to \pi\pi\pi$ amplitudes from recent data

G. d'Ambrosio
  • Fonction : Auteur
S. Neshatpour
  • Fonction : Auteur

Résumé

This Letter provides a new determination of the ten real coefficients that describe the structure of the $K \to \pi\pi\pi$ amplitudes in the limit where isospin is conserved and complex phases, due to either CP violation or final-state rescattering, are neglected. This determination is obtained through a fit to the data on the Dalitz-plot structures and partial-decay rates collected during the last twenty years by several high-precision experiments. The fitting procedure and the way the experimental data have been handled in the fit are discussed in detail. Our fit leads to a more precise determination of the coefficients describing the linear and quadratic slopes of the $K \to \pi\pi\pi$ amplitudes.

Dates et versions

hal-03782971 , version 1 (21-09-2022)

Identifiants

Citer

G. d'Ambrosio, M. Knecht, S. Neshatpour. Determination of the structure of the $K \to \pi\pi\pi$ amplitudes from recent data. Phys.Lett.B, 2022, 835, pp.137594. ⟨10.1016/j.physletb.2022.137594⟩. ⟨hal-03782971⟩
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