New Rare Decay Results from KTeV
Michael Akashi-Ronquest (for the KTeV collaboration)
TL;DR
This paper reports new experimental limits and measurements of rare kaon and pi0 decays from the KTeV experiment, providing insights into fundamental symmetries and lepton flavor violation.
Contribution
It presents the first limits on certain lepton flavor violating decays and detailed measurements of rare decay modes relevant to symmetry studies.
Findings
New limits on K_L -> pi0 mu e and related decays
Measurements of K_L -> pi0 gamma gamma and K_L -> pi0 e+ e- gamma
Analysis of pi0 -> e+ e- e+ e- decay
Abstract
Data from the KTeV experiment have provided many opportunities for studies of fundamental symmetries in nature, not just CP. We present new limits on the lepton flavor violating decays K_L -> pi0 mu e, K_L -> pi0 pi0 mu e and pi0 -> mu e. We also present measurements of K_L -> pi0 gamma gamma and K_L -> pi0 e+ e- gamma which are relevant to the determination of the various contributions to K_L-> pi0 lepton anti-lepton. Finally, we present an analysis of the decay pi0 -> e+e-e+e-.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Computational Physics and Python Applications · Superconducting Materials and Applications