Measurement of W ± Z production in proton-proton collisions at $$\sqrt{s}=7~\mbox{TeV}$$ with the ATLAS detector
Journal Article
·
· European Physical Journal. C, Particles and Fields
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 σ$$tot\atop{WZ}$$ =19.0 $$+1.4\atop{-1.3}$$ (stat.)±0.9(syst.)±0.4(lumi.) pb, consistent with the Standard Model expectation of 17.6 $$+1.1\atop{-1.0}$$ 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.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Contributing Organization:
- The ATLAS Collaboration
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1407162
- Alternate ID(s):
- OSTI ID: 22017338
OSTI ID: 1838780
- Journal Information:
- European Physical Journal. C, Particles and Fields, Journal Name: European Physical Journal. C, Particles and Fields Journal Issue: 10 Vol. 72; ISSN 1434-6044
- Publisher:
- SpringerCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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