Measurement of cross-sections and asymmetries in e+ e- collisions at 130-GeV - 140-GeV center-of-mass energy
Collaboration
16 pages
Published in:
- Phys.Lett.B 376 (1996) 232-244
Report number:
- CERN-PPE-96-025,
- CERN-PPE-96-25
Experiments:
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Abstract: (Elsevier)
Production of events with multihadronic and leptonic final states has been measured in e + e − collisions at centre-of-mass energies significantly above the Z 0 mass, using the OPAL detector at LEP. A substantial production rate of radiative Z 0 γ events was observed, as expected, together with events with less energetic initial-state photons. The cross-sections and leptonic forward-backward asymmetries were measured and compared with Standard Model expectations. In a model-independent fit to the Z 0 lineshape, the hadronic cross-section and lepton asymmetries presented here provide constraints on the size of the γZ 0 -interference term which are complementary to those afforded by LEP data accumulated at the Z 0 resonance.- electron positron: colliding beams
- colliding beams: electron positron
- electron positron: annihilation
- annihilation: electron positron
- hadron: multiple production
- multiple production: hadron
- lepton: pair production
- pair production: lepton
- Z0: electroproduction
- electroproduction: Z0
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