Abstract
The distributions of the invariant mass (Mμγ) calculated from muons and γ-rays originating at the vertex of v interactions and also from inelastic muon scattering have enhancements in the mass range 0.422 <Mμγ<0.437 GeV. These enhancements are compatible with the possible existence of a short lived charged heavy lepton (M*μγ) with the decay mode M*μγ→μ+γ. Such particles could be analogous to the neutral heavy leptons for which there is some evidence in the same mass range.
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References
Ramm, C. A., Nature, 227, 1323 (1970).
Liberman, A. D., Hoffman, C. M., Engels, E., Imrie, D. C., Innocenti, P. G., Wilson, R., Zajde, C., Blanpied, W. A., Stairs, D. G., and Drickey, D. J., Phys. Rev. Lett., 22, 663 (1969).
Ramm, C. A., Nature, 217, 913 (1968).
Liberman, A. D., thesis, Harvard (1969).
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RAMM, C. Possible Existence of Charged Heavy Leptons. Nature Physical Science 230, 145–149 (1971). https://doi.org/10.1038/physci230145a0
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DOI: https://doi.org/10.1038/physci230145a0
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