Measurement of the $W W$ cross section in $\sqrt{s}=7$ TeV $pp$ collisions with ATLAS - INSPIRE

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Measurement of the $W W$ cross section in $\sqrt{s}=7$ TeV $pp$ collisions with ATLAS

ATLAS

Collaboration

Apr, 2011

5 pages

Published in:

Phys.Rev.Lett. 107 (2011) 041802

e-Print:

1104.5225 [hep-ex]

DOI:

10.1103/PhysRevLett.107.041802

Experiments:

CERN-LHC-ATLAS

View in:

reference search73 citations

Citations per year

Abstract: (arXiv)

This Letter presents a measurement of the \WW production cross section in \sqrt{s} = 7 \TeV\ pp collisions by the ATLAS experiment, using 34 \pbi of integrated luminosity produced by the Large Hadron Collider at CERN. Selecting events with two isolated leptons, each either an electron or a muon, 8 candidate events are observed with an expected background of

1.7\pm0.6

events. The measured cross section is

41^{+20}_{-16}(\mathrm{stat.})\pm 5(\mathrm{syst.})\pm 1(\mathrm{lumi.})

pb, which is consistent with the standard model prediction of

44 \pm 3

pb calculated at next-to-leading order in QCD.

Note:

4.5 pages plus author list (18 pages total), 6 figures, 1 table, submitted to Physical Review Letters

13.38.Be
14.70.Fm
13.85.Qk
W: pair production
channel cross section: measured
ATLAS
CERN LHC Coll
p p: interaction
W: leptonic decay
dilepton: final state

References(25)

Figures(7)

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