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

The ATLAS Collaboration

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Abstract

A measurement of the ZZ production cross section in the ℓ+′ −′ + and ℓ+νν¯ channels (ℓ = e, μ) in proton-proton collisions at s=8TeV at the Large Hadron Collider at CERN, using data corresponding to an integrated luminosity of 20.3 fb−1 collected by the ATLAS experiment in 2012 is presented. The fiducial cross sections for ZZ → ℓ+′ −′ + and ZZ→ ℓ+νν¯ are measured in selected phase-space regions. The total cross section for ZZ events produced with both Z bosons in the mass range 66 to 116 GeV is measured from the combination of the two channels to be 7.3 ± 0.4(stat) ± 0.3(syst)− 0.1 − 0.2(lumi) pb, which is consistent with the Standard Model prediction of 6. 6− 0.6 + 0.7 pb. The differential cross sections in bins of various kinematic variables are presented. The differential event yield as a function of the transverse momentum of the leading Z boson is used to set limits on anomalous neutral triple gauge boson couplings in ZZ production.[Figure not available: see fulltext.]

Original languageEnglish (US)
Article number99
JournalJournal of High Energy Physics
Volume2017
Issue number1
DOIs
StatePublished - Jan 1 2017

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Keywords

  • Hadron-Hadron scattering (experiments)

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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