Lower limit on neutral-heavy-muon mass

A. R. Clark, K. J. Johnson, L. T. Kerth, S. C. Loken, T. W. Markiewicz, P. D. Meyers, W. H. Smith, M. Strovink, W. A. Wenzel, R. P. Johnson, C. Moore, M. Mugge, R. E. Shafer, G. D. Gollin, F. C. Shoemaker, P. Surko

Research output: Contribution to journalArticlepeer-review


Analysis of 122 965 dimuon final states produced by 209-GeV muons in a magnetized iron calorimeter has set a lower limit on the mass of a neutral heavy muon (M̄0). If the M̄0 is coupled with Fermi strength to a right-handed charged current and decays to μμν with a 10% branching ratio, its mass exceeds 9 GeV/c2.

Original languageEnglish (US)
Pages (from-to)299-302
Number of pages4
JournalPhysical review letters
Issue number5
StatePublished - 1981
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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