# Measurement of Hadron and Lepton-Pair Production in $e^+e^-$ Collisions at $\sqrt{s}$=192-208GeV at LEP

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 sqrt{s}=192-208GeV. Using a total integrated luminosity of 453/pb, 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.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00025771
Contributor : Sylvie Flores Connect in order to contact the contributor
Submitted on : Monday, March 13, 2006 - 3:54:56 PM
Last modification on : Friday, September 10, 2021 - 1:50:11 PM

### Citation

P. Achard, O. Adriani, M. Aguilar-Benítez, J. Alcaraz, G. Alemanni, et al.. Measurement of Hadron and Lepton-Pair Production in $e^+e^-$ Collisions at $\sqrt{s}$=192-208GeV at LEP. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2006, 47, pp.1-19. ⟨10.1140/epjc/s2006-02539-1⟩. ⟨in2p3-00025771⟩

Record views