Anomalous muon production in $e^+$ $e^−$ annihilations as evidence for heavy leptons
- Burmester, J.
- Criegee, L.
- Horlitz, G.
- Kahl, Th.
- Knies, G.
- Rössler, M.
- Schmitz, R.
- Timm, U.
- Wahl, H.
- Waloschek, P.
- Winter, G. G.
- Wolff, S.
- Dehne, H. C.
- Zimmermann, W.
- Blobel, V.
- Koppitz, B.
- Lohrmann, E.
- Lührsen, W.
- Bäcker, A.
- Bürger, J.
- Grupen, C.
- Zech, G.
- Meyer, H.
- Derikum, K.
- Wacker, K.
- PLUTO Collaboration
- Devenish, R.
- Flügge, G.
- Fox, J. D.
- Franke, G.
- Gerke, Ch.
- Harms, P.
DOIAbstract
We have measured inclusive muon production in e + e − annihilation for CMS energies between 3.6 and 5.0 GeV. Above 4 GeV the cross section cannot be explained by conventional sources like higher order QED processes or inclusive production of the J ϑ (3.1). It is, however, compatible with the pair production of heavy particles of a mass of about 1.9 GeV/ c 2 . Spin assignment and decay parameters are investigated
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