Measurement of the $W^\pm Z$ production cross section and limits on anomalous triple gauge couplings in proton-proton collisions at $\sqrt{s}=7$ TeV with the ATLAS detector - INSPIRE

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Measurement of the $W^\pm Z$ production cross section and limits on anomalous triple gauge couplings in proton-proton collisions at $\sqrt{s}=7$ TeV with the ATLAS detector

ATLAS

Collaboration

Nov, 2011

17 pages

Published in:

Phys.Lett.B 709 (2012) 341-357

Published: Jul 16, 2013

e-Print:

1111.5570 [hep-ex]

DOI:

10.1016/j.physletb.2012.02.053

Report number:

CERN-PH-EP-2011-184

Experiments:

CERN-LHC-ATLAS

View in:

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Abstract: (Elsevier)

This Letter presents a measurement of W±Z production in 1.02 fb −1 of pp collision data at s=7 TeV collected by the ATLAS experiment in 2011. Doubly leptonic decay events are selected with electrons, muons and missing transverse momentum in the final state. In total 71 candidates are observed, with a background expectation of 12.1±1.4(stat.)−2.0+4.1(syst.) events. The total cross section for W±Z production for Z/γ⁎ masses within the range 66 GeV to 116 GeV is determined to be σWZtot=20.5−2.8+3.1(stat.)−1.3+1.4(syst.)−0.8+0.9(lumi.) pb , which is consistent with the Standard Model expectation of 17.30.8+1.3 pb . Limits on anomalous triple gauge boson couplings are extracted.

Note:

6 pages plus author list (18 pages total), 3 figures, 3 tables, matches published version in Physics Letters B

hadroproduction: (W Z0)
coupling: (3gauge boson)
transverse momentum: missing-energy
p p: inclusive reaction
ATLAS
channel cross section: measured
intermediate boson: leptonic decay
final state: (3lepton)
experimental results
CERN LHC Coll

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