Collaboration, ATLAS
(2016)
Measurement of the $ZZ$ production cross section in $pp$ collisions at
$\sqrt{s}$ = 8 TeV using the $ZZ\to\ell^{-}\ell^{+}\ell^{\prime
-}\ell^{\prime +}$ and $ZZ\to\ell^{-}\ell^{+}ν\barν$ channels with the
ATLAS detector.
JHEP, 01.
099-.
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Text
1610.07585v2.pdf - Published version Download (1MB) |
Abstract
A measurement of the $ZZ$ production in the $\ell^{-}\ell^{+}\ell^{\prime -}\ell^{\prime +}$ and $\ell^{-}\ell^{+}\nu\bar{\nu}$ channels $(\ell = e, \mu)$ in proton--proton collisions at $\sqrt{s} = 8$ 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 $ZZ\to\ell^{-}\ell^{+}\ell^{\prime -}\ell^{\prime +}$ and $ZZ\to \ell^{-}\ell^{+}\nu\bar{\nu}$ 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 $7.3\pm0.4\textrm{(stat)}\pm0.3\textrm{(syst)}\pm0.2\textrm{(lumi)}$ pb, which is consistent with the Standard Model prediction of $6.6^{+0.7}_{-0.6}$ 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.
Item Type: | Article |
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Additional Information: | 55 pages in total, author list starting page 39, 9 figures, 11 tables, accepted for publication in JHEP. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2014-16/ |
Uncontrolled Keywords: | hep-ex, hep-ex |
Depositing User: | Symplectic Admin |
Date Deposited: | 12 Feb 2018 10:22 |
Last Modified: | 19 Jan 2023 06:42 |
DOI: | 10.1007/JHEP01(2017)099 |
Related URLs: | |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3017799 |