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.

5 pages, 4 figures, Submitted to Phys. Rev. Lett

References in corpus (2)

• A Unified Approach to the Classical Statistical Analysis of Small Signals
• New Limit on Muon and Electron Lepton Number Violation from $K_L^0\to {\mu }^{\pm }{e}^{\mp }$ Decay

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