A Search for Hadronic Events With Low Thrust and an Isolated Lepton
Feb, 19876 pages
Published in:
- Phys.Lett.B 193 (1987) 157-162
- Published: 1987
Report number:
- DESY-87-016
Experiments:
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Abstract: (Elsevier)
Using the CELLO detector at the PETRA e + e − storage ring a search for hadronic events with low thrust and an isolated lepton has been carried out. The rate of such events and the thrust distribution of inclusive lepton events show no evidence for a threshold of new sources of inclusive lepton events at the highest PETRA energies. For s 46.3 GeV we observe any electron event of this above type, compared to an expectation of 0.8±0.2 events from lower energy data. We do not observe any electron event of this class at the highest PETRA energies. The CELLO data thus do not support the observations of the MARK-J and JADE collaborations of an excess of muon events of the above type at s >46.3 GeV .- ELECTRON POSITRON: INCLUSIVE REACTION
- ELECTRON POSITRON: COLLIDING BEAMS
- COLLIDING BEAMS: ELECTRON POSITRON
- ELECTRON POSITRON: ANNIHILATION
- ANNIHILATION: ELECTRON POSITRON
- HADRON: MULTIPLE PRODUCTION
- MULTIPLE PRODUCTION: HADRON
- LEPTON: ASSOCIATED PRODUCTION
- ASSOCIATED PRODUCTION: LEPTON
- EVENT SHAPE ANALYSIS: THRUST
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