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ZZ production in e+e- interactions at sqrt(s) = 183 - 209 GeV

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TLDR
In this article, measurements of on-shell ZZ production are described, using data from the DELPHI experiment at LEP in e+e- collisions at centre-of-mass energies between 183 and 209 GeV, corresponding to an integrated luminosity of about 665 pb^{-1}.
Abstract
Measurements of on-shell ZZ production are described, using data from the DELPHI experiment at LEP in e+e- collisions at centre-of-mass energies between 183 and 209 GeV, corresponding to an integrated luminosity of about 665 pb^{-1}. Results obtained in each of the final states q anti-q q anti-q, nu anti-nu q anti-q, mu+ mu- q anti-q, e+ e- q anti-q, tau+ tau- q anti-q, l+ l- l+ l-, and nu anti-nu l+ l- (with l=e,mu) are presented. The measured production cross-sections are consistent with the Standard Model expectations. These results update and supersede those already published at 183 and 189 GeV.

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Journal ArticleDOI

Electroweak measurements in electron positron collisions at W-boson-pair energies at LEP

S. Schael, +1675 more
- 30 Nov 2013 - 
TL;DR: In this paper, the results of the four LEP experiments were combined to determine fundamental properties of the W boson and the electroweak theory, including the branching fraction of W and the trilinear gauge-boson self-couplings.
Journal ArticleDOI

Measurement of Z-pair production in e(+)e(-) collisions and constraints on anomalous neutral gauge couplings

TL;DR: In this paper, the authors measured the ZZ production cross section from a data sample corresponding to a total integrated luminosity of 452 pb−1, collected by the ALEPH experiment at LEP at centre-of-mass energies from 192 to 209 GeV.
Journal ArticleDOI

Searches for invisibly decaying Higgs bosons with the DELPHI detector at LEP

TL;DR: In this paper, the mass limit for invisibly decaying Higgs bosons was shown to be 112.1 GeV/c(2) at 95% confidence level for both hadronic and leptonic final states of the Z boson.
Journal ArticleDOI

Measurement of the ZZ production cross section in proton-proton collisions at √s=8 TeV using the ZZ → ℓ−ℓ+ℓ′−ℓ′+ and ZZ→ ℓ−ℓ+νν¯ decay channels with the ATLAS detector

Morad Aaboud, +83 more
TL;DR: In this article, the authors measured the fiducial cross sections for the mass range 66 to 116 GeV events produced with both $Z$ and $N$ bosons at the Large Hadron Collider at CERN.
Journal ArticleDOI

Investigation of colour reconnection in WW events with the DELPHI detector at LEP-2

Jalal Abdallah, +350 more
TL;DR: In this paper, the results of the investigation of colour reconnection e.g. in fully hadronic decays of W pairs in DELPHI at LEP are presented and two complementary analyses are performed, studying the particle.
References
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A Combination of Preliminary Electroweak Measurements and Constraints on the Standard Model The LEP Collaborations ALEPH, DELPHI, L3, OPAL, the LEP Electroweak Working Group y and the SLD Heavy Flavour Group z

N. de Groot, +1 more
TL;DR: In this paper, a combination of published and preliminary electroweak results from the four LEP collaborations and the SLD collaboration which were prepared for the 1997 summer conferences are presented. And the results are compared with precise electroweak measurements from other experiments.
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