Using two large NaI detectors, a limit on the branching ratio for the μ+→e+γ decay has been found to be Rμeγ=Γ(μ+→e+γ)Γ(μ+→e+νeν¯μ)<3.6×10−9 at a 90% confidence level.
DOI:https://doi.org/10.1103/PhysRevLett.39.1113
©1977 American Physical Society
P. Depommier, J. -P. Martin, J. -M. Poutissou, and R. Poutissou
D. Berghofer, M. D. Hasinoff, D. F. Measday, and M. Salomon
D. Bryman
M. Dixit and J. A. Macdonald
G. I. Opat*
Vol. 39, Iss. 18 — 31 October 1977
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