Measurement of W±Z production in proton-proton collisions At √s = 7 TeV with the ATLAS detector

The ATLAS Collaboration

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

A study of W ± Z production in proton-proton collisions at √s = 7 TeV is presented using data corresponding to an integrated luminosity of 4.6 fb−1 collected with the ATLAS detector at the Large Hadron Collider in 2011. In total, 317 candidates, with a background expectation of 68 ± 10 events, are observed in double-leptonic decay final states with electrons, muons and missing transverse momentum. The total cross-section is determined to be be σtot WZ = 19.0+1.4 −1.3 (stat.) ± 0.9(syst.) ± 0.4(lumi.) pb, consistent with the Standard Model expectation of 17.6+1.1 −1.0 pb. Limits on anomalous triple gauge boson couplings are derived using the transverse momentum spectrum of Z bosons in the selected events. The cross-section is also presented as a function of Z boson transverse momentum and diboson invariant mass.

Original languageEnglish
Article number2173
JournalEuropean Physical Journal C
Volume72
Issue number10
DOIs
Publication statusPublished - Oct 6 2012
Externally publishedYes

Fingerprint

Bosons
transverse momentum
Momentum
Protons
bosons
Detectors
collisions
protons
detectors
Colliding beam accelerators
cross sections
Gages
muons
Luminance
luminosity
Electrons
decay
electrons

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Engineering (miscellaneous)

Cite this

Measurement of W±Z production in proton-proton collisions At √s = 7 TeV with the ATLAS detector. / The ATLAS Collaboration.

In: European Physical Journal C, Vol. 72, No. 10, 2173, 06.10.2012.

Research output: Contribution to journalArticle

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abstract = "A study of W ± Z production in proton-proton collisions at √s = 7 TeV is presented using data corresponding to an integrated luminosity of 4.6 fb−1 collected with the ATLAS detector at the Large Hadron Collider in 2011. In total, 317 candidates, with a background expectation of 68 ± 10 events, are observed in double-leptonic decay final states with electrons, muons and missing transverse momentum. The total cross-section is determined to be be σtot WZ = 19.0+1.4 −1.3 (stat.) ± 0.9(syst.) ± 0.4(lumi.) pb, consistent with the Standard Model expectation of 17.6+1.1 −1.0 pb. Limits on anomalous triple gauge boson couplings are derived using the transverse momentum spectrum of Z bosons in the selected events. The cross-section is also presented as a function of Z boson transverse momentum and diboson invariant mass.",
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