Search for the exotic decay μ+→e+ν̄eνμ

D. A. Krakauer*, R. L. Talaga, R. C. Allen, H. H. Chen, P. J. Doe, R. Hausammann, W. P. Lee, X. Q. Lu, H. J. Mahler, M. E. Potter, K. C. Wang, H. Yao, T. J. Bowles, R. L. Burman, R. D. Carlini, D. R.F. Cochran, J. S. Frank, E. Piasetzky, V. D. Sandberg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


We search for the exotic decay μ+→e+νeνμ as a test of lepton number conversation. An exposure of ≈1020 μ+ -decay neutrinos to a 15 ton detector leads to a new upper bound for the branching ratio, Rε{lunate}Γ(μ+→e+νeνμ/Γ(μ+→all), R<0.018 (90% CL).

Original languageEnglish
Pages (from-to)534-538
Number of pages5
JournalPhysics Letters B
Issue number3-4
Publication statusPublished - 1991 Jul 18
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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