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Measurement of hadron and lepton-pair production in e+e- collisions at √s=192−208 GeV at LEP

CollaborationWith : Achard, Pablo / Bourquin, Maurice / Braccini, Saverio / Chamizo Llatas, Maria / Deglon, Patrick / Delmeire, Evelyne / Echenard, Bertrand / Extermann, Pierre / Field, John / Kienzle, Maria-Novella / Natale, Sonia / Pohl, Martin / Straessner, Arno
Published in The European Physical Journal. C, Particles and Fields. 2006, vol. 47, no. 1, p. 1-19
Abstract Hadron production and lepton-pair production in e+e- collisions are studied with data collected with the L3 detector at LEP at centre-of-mass energies s√=192−208GeV . Using a total integrated luminosity of 453 pb-1, 36057 hadronic events and 12863 lepton-pair events are selected. The cross sections for hadron production and lepton-pair production are measured for the full sample and for events where no high-energy initial-state-radiation photon is emitted prior to the collisions. Lepton-pair events are further investigated and forward-backward asymmetries are measured. Finally, the differential cross sections for electron-positron pair-production is determined as a function of the scattering angle. An overall good agreement is found with Standard Model predictions.
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L3 COLLABORATION. Measurement of hadron and lepton-pair production in e+e- collisions at √s=192−208 GeV at LEP. In: The European Physical Journal. C, Particles and Fields, 2006, vol. 47, n° 1, p. 1-19. https://archive-ouverte.unige.ch/unige:41598

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Deposited on : 2014-11-07

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