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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.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-8913-0981
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Number of Authors: 3026
2011 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 107, no 4, 041802-1-041802-18 p.Article 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, 041802-1-041802-18 p.
Keyword [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: diva2:433800
Funder
Swedish Research Council
Note
QC 20110811. Antal författare: 3026.Available from: 2011-08-11 Created: 2011-08-11 Last updated: 2017-12-08Bibliographically approved

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Strandberg, Jonas

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