What can we learn from new measurements of Dalitz plot parameters for K → 3 π decays ?

1993/11/15 by A. A. Bel’kov, G. Böhm, Bel'kov, A. A. +6
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.hep-ph/9311295

openalex publication_date 1993/11/15 · openalex created_date 2024/04/10 · openalex updated_date 2026/07/28

Abstract

We give a simple expression in linear and quadratic Dalitz--plot slopes which does not depend on the charge combination of the 3π state (K^± → π^±π⁺π^- or π^±π⁰π⁰ and K_L⁰ → π⁺π^-π⁰ or π⁰π⁰π⁰), if all phases between final states are negligible. After investigating the influence of radiative corrections, it is shown how new measurements, especially of quadratic slopes in the π^± π⁰ π⁰ channel, could help to test theoretical predictions more stringently. A FORTRAN code for the radiatiative corrections is available on request.

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