Anomalous Muon Production in e+ e- Annihilation as Evidence for Heavy Leptons

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.

ELECTRON POSITRON: COLLIDING BEAMS
COLLIDING BEAMS: ELECTRON POSITRON
ELECTRON POSITRON: ANNIHILATION
ANNIHILATION: ELECTRON POSITRON
ELECTRON POSITRON: INCLUSIVE REACTION
MUON: FINAL STATE
FINAL STATE: MUON
MUON: PRODUCTION
PRODUCTION: MUON
PRODUCTION: ANOMALY

References(8)

Figures(0)

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

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(
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)
,
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(
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)
,
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(
- LBL, Berkeley and
- UC, Berkeley and
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)
,
Martin Breidenbach
(
- LBL, Berkeley and
- UC, Berkeley and
- SLAC
)
,
D. Briggs
(
- LBL, Berkeley and
- UC, Berkeley and
- SLAC
)

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•
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Properties of Anomalous e mu Events Produced in e+ e- Annihilation

Martin L. Perl
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)
,
G.J. Feldman
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)
,
G.S. Abrams
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)
,
M.S. Alam
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)
,
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(
- SLAC and
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•
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