Z gamma* production in e+e- interactions at s**(1/2) = 183 - 209-GeV
Jun, 200738 pages
Published in:
- Eur.Phys.J.C 51 (2007) 503-523
e-Print:
- 0706.2565 [hep-ex]
Report number:
- CERN-PH-EP-2006-022
Experiments:
Citations per year
Abstract: (arXiv)
Measurements of Zgamma* production are presented using data collected by the DELPHI detector at centre-of-mass energies ranging from 183 to 209 GeV, corresponding to an integrated luminosity of about 667 pb^{-1}. The measurements cover a wide range of the possible final state four-fermion configurations: hadronic and leptonic (e+ e- q qbar, mu+ mu- q qbar, q qbar nu nubar), fully leptonic (l+ l- l'+ l'-) and fully hadronic final states (q qbar q qbar, with a low mass q qbar pair). Measurements of the Zgamma* cross-section for the various final states have been compared with the Standard Model expectations and found to be consistent within the errors. In addition, a total cross-section measurement of the l+ l- l'+ l'- cross-section is reported, and found to be in agreement with the prediction of the Standard Model.Note:
- 38 pages, 13 figures, Accepted by Eur. Phys. J. C
- electron positron: colliding beams
- electron positron: annihilation
- Z0: electroproduction
- Z0: decay modes
- photon: associated production
- photon: off-shell
- final state: (4fermion)
- Feynman graph
- channel cross section: energy dependence
- electroweak interaction: standard model
References(31)
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