Measurement of the ZZ Production Cross Section in Proton-Proton Collisions at √s̅=8 TeV Using the ZZ→ ℓ⁺ℓ⁻ℓ′⁻ℓ′⁺ and ZZ→ ℓ⁻ℓ⁺νν̅ Decay Channels with the ATLAS Detector

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Measurement of the ZZ Production Cross Section in Proton-Proton Collisions at √s̅=8 TeV Using the ZZ→ ℓ⁺ℓ⁻ℓ′⁻ℓ′⁺ and ZZ→ ℓ⁻ℓ⁺νν̅ Decay Channels with the ATLAS Detector

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Title: Measurement of the ZZ Production Cross Section in Proton-Proton Collisions at √s̅=8 TeV Using the ZZ→ ℓ⁺ℓ⁻ℓ′⁻ℓ′⁺ and ZZ→ ℓ⁻ℓ⁺νν̅ Decay Channels with the ATLAS Detector
Author(s):
Aaboud, M.;
Aad, G.;
Abbott, B.;
Abdallah, J.;
Abdinov, O.;
Abeloos, B.;
Aben, R.;
Izen, Joseph M.;
Leyton, Michael;
Meirose, Bernhard;
Reeves, Kendall;
ATLAS Collaboration
Date Created: 2017-01-24
Item Type: article
Keywords: Show Keywords
Abstract: A measurement of the ZZ production cross section in the ℓ⁺ℓ⁻ℓ′⁻ℓ′⁺ and ℓ⁻ℓ⁺νν̅ channels (ℓ = e, μ) in proton-proton collisions at √s̅ = 8 TeV 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⁺ℓ⁻ℓ′⁻ℓ′⁺ and ZZ→ ℓ⁻ℓ⁺νν̅ 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.
Publisher: Springer Verlag
ISSN: 1126-6708
Source: Journal of High Energy Physics
Link to Related Resource: http://dx.doi.org/10.1007/JHEP01(2017)099
Persistent Link: http://hdl.handle.net/10735.1/6053
Bibliographic Citation: Aaboud, M., G. Aad, B. Abbott, et al. 2017. "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." Journal of High Energy Physics 2017(99), doi:10.1007/JHEP01(2017)099
Terms of Use: CC BY 4.0 (Attribution)
©2017 CERN, for the ATLAS Collaboration

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CC BY 4.0 (Attribution) Except where otherwise noted, this item's license is described as CC BY 4.0 (Attribution)