The upper limit on the K⁺ → π⁰π⁰π⁰e⁺ν decay

2024/09/13 by A.V. Kulik, S. Filippov, Kulik, A. V. +55
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2409.08817

openalex publication_date 2024/09/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A search for the K⁺ → π⁰π⁰π⁰e⁺ν decay is performed by the OKA collaboration. The search is based on 3.65 × 10⁹ ~ K⁺ decays. No signal is observed. The upper limit set is BR(K⁺ → π⁰π⁰π⁰e⁺ν) < 5.4× 10^-8 ~ 90% CL, 65 times lower than the one currently listed by PDG.

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