Search for the KLπ0π0e+e Decay in the KTeV Experiment

A. Alavi-Harati et al. (KTeV Collaboration)
Phys. Rev. Lett. 89, 211801 – Published 31 October 2002

Abstract

The recent discovery of a large CP violating asymmetry in KLπ+πe+e mode has prompted us to seach for the associated KLπ0π0e+e decay mode in the KTeV-E799 experiment at Fermilab. In 2.7×1011 KL decays, one candidate event has been observed with an expected background of 0.3 event, resulting in an upper limit for the KLπ0π0e+e branching ratio of 6.6×109 at the 90% C.L.

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  • Received 11 December 2001

DOI:https://doi.org/10.1103/PhysRevLett.89.211801

©2002 American Physical Society

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Vol. 89, Iss. 21 — 18 November 2002

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