Measurement of the W^ + W^ - Cross Section in sqrt s =7 TeV pp Collisions with ATLAS.
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Abstract | :
This Letter presents a measurement of the W^{+}W^{-} production cross section in sqrt[s]=7 TeV pp collisions by the ATLAS experiment, using 34 pb^{-1} 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±0.6 events. The measured cross section is 41_{-16}^{+20}(stat)±5(syst)±1(lumi) pb, which is consistent with the standard model prediction of 44±3 pb calculated at next-to-leading order in QCD. |
Year of Publication | :
1969
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Journal | :
Physical review letters
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Volume | :
107
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Issue | :
4
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Number of Pages | :
041802
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Date Published | :
2011 Jul 22
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ISSN Number | :
0031-9007
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URL | :
http://link.aps.org/abstract/PRL/v107/p041802
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Short Title | :
Measurement of the W W Cross Section in sqrt s 7 TeV pp Collisio
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