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Measurement of the W(+)W(-) Cross Section in root s=7 TeV pp Collisions with ATLAS
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0003-3867-0336
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-8913-0981
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Number of Authors: 30262011 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 107, no 4, p. 041802-1-041802-18Article in journal (Refereed) Published
Abstract [en]

This Letter presents a measurement of the W(+)W(-) production cross section in root 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.

Place, publisher, year, edition, pages
2011. Vol. 107, no 4, p. 041802-1-041802-18
Keywords [en]
W-PAIR PRODUCTION, BRANCHING FRACTIONS, E(+)E(-) INTERACTIONS
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:kth:diva-37413DOI: 10.1103/PhysRevLett.107.041802ISI: 000292922100003Scopus ID: 2-s2.0-79961101808OAI: oai:DiVA.org:kth-37413DiVA, id: diva2:433800
Funder
Swedish Research Council
Note
QC 20110811. Antal författare: 3026.Available from: 2011-08-11 Created: 2011-08-11 Last updated: 2019-12-04Bibliographically approved

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Strandberg, Jonas

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