Abstract

A search for the decays KL0→μe and KL0→ee has produced no examples of either process. When normalized to the decay KL0→π+π−, the 90%-C.L. upper limits on the branching ratios are B(KL0→μe)<2.2×10−10 and B(KL0→ee)<3.2×10−10. .AEReceived 7 August 1989DOI:https://doi.org/10.1103/PhysRevLett.63.2181©1989 American Physical Society

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