Zgamma* production in e+e- interactions at sqrt{s} = 183 - 209 GeV
arXiv:0706.2565 · doi:10.1140/epjc/s10052-007-0339-y
Abstract
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.
38 pages, 13 figures, Accepted by Eur. Phys. J. C
References in corpus (22)
- High-Energy-Physics Event Generation with PYTHIA 6.1
- The Precision Monte Carlo Event Generator KK For Two-Fermion Final States In e+e- Collisions
- BHWIDE 1.00: O(alpha) YFS Exponentiated Monte Carlo for Bhabha Scattering at Wide Angles for LEP1/SLC and LEP2
- Electroweak radiative corrections to e+e- --> WW --> 4fermions in double-pole approximation -- the RACOONWW approach
- EXCALIBUR -- a Monte Carlo program to evaluate all four fermion processes at LEP 200 and beyond
- Radiative corrections to pair production of unstable particles: results for e^+e^- --> 4 fermions
- Exact Gauge Invariant YFS Exponentiated Monte Carlo for (Un)Stable for (Un)Stable Production At and Beyond LEP2 Energies
- The Monte Carlo Event Generator YFSWW3 version 1.16 for W-Pair Production and Decay at LEP2/LC Energies
- WPHACT 1.0 - A program for , Higgs and 4 fermion physics at colliders
- Measurement of the Cross Section of W-boson pair production at LEP
- WW Production Cross Section and W Branching Fractions in e+e- Collisions at 189 GeV
- Study of Z Pair Production and Anomalous Couplings in e+e- Collisions at sqrt(s) between 190 GeV and 209 GeV
- Measurement of the W-pair Production Cross-section and W Branching Ratios in e+e- Collisions at sqrt(s) = 161-209 GeV
- Four-fermion simulation at LEP2 in DELPHI
- Measurement of the e+e- -> ZZ production cross-section at centre-of-mass energies of 183 and 189GeV
- WPHACT 2.0: A fully massive Monte Carlo generator for four fermion physics at e^+ e^- colliders
- The Estimation of the Effective Centre of Mass Energy in q-qbar-gamma Events from DELPHI
- ZZ production in e+e- interactions at sqrt(s) = 183 - 209 GeV
- Z Boson Pair-Production at LEP
- Test of QEDPS: A Monte Carlo for the hard photon distributions in e+ e- annihilation proecss
- Measurement of Neutral-Current Four-Fermion Production at LEP2
- Neutral-Current Four-Fermion Production in e+e- Interactions at LEP