An Improved Limit on the Rate Of Decay K+ -> pi+ mu+ e-
Abstract
The experiment E865 at BNL places an upper limit on the branching ratio for the decay K+ -> pi+ mu+ e- of 3.9x10-11 (90% C.L.). Along with with other results this yields a combined upper limit on this branching ratio of 2.8x10-11. A new upper limit on the branching ratio for pi0 -> mu+ e- of 3.8x10-10 (90% C.L.) is also established. The experiment and analysis are described.
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