APS » PROLA » Phys. Rev. Lett. » Volume 35 » Issue 22

Phys. Rev. Lett. 35, 1489 - 1492 (1975)

Evidence for Anomalous Lepton Production in e+-e- Annihilation

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M. L. Perl et al.
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Received 18 August 1975

We have found events of the form e++e-→e±+μ∓+missing energy , in which no other charged particles or photons are detected. Most of these events are detected at or above a center-of-mass energy of 4 GeV. The missing-energy and missing-momentum spectra require that at least two additional particles be produced in each event. We have no conventional explanation for these events.


©1975 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v35/p1489
DOI: 10.1103/PhysRevLett.35.1489

* Present address: Department of Physics and Astronomy, University of Massachusetts, Amherst, Mass. 01002.
† Fellow of Deutsche Forschungsgemeinschaft.
‡ Centre d'Etudes Nucléaires de Saclay, Saclay, France.
§ Institut de Physique Nucléaire, Orsay, France.

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