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Measurement of hard double-parton interactions in W(-> lv) plus 2-jet events at root s=7 TeV with the ATLAS detector
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.
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2013 (English)In: New Journal of Physics, ISSN 1367-2630, E-ISSN 1367-2630, Vol. 15, 033038- p.Article in journal (Refereed) Published
Abstract [en]

The production of W bosons in association with two jets in proton-proton collisions at a centre-of-mass energy of root s = 7 TeV has been analysed for the presence of double-parton interactions using data corresponding to an integrated luminosity of 36 pb(-1), collected with the ATLAS detector at the Large Hadron Collider. The fraction of events arising from double-parton interactions, f(DP)((D)), has been measured through the p(T) balance between the two jets and amounts to f(DP)((D)) = 0.08 +/- 0.01 (stat.) +/- 0.02 (sys.) for jets with transverse momentum p(T) > 20 GeV and rapidity vertical bar y vertical bar < 2.8. This corresponds to a measurement of the effective area parameter for hard double-parton interactions of sigma(eff) = 15 +/- 3 (stat.)(-3)(+5) (sys.) mb.

Place, publisher, year, edition, pages
2013. Vol. 15, 033038- p.
Keyword [en]
Multiparton Interactions, 4-Jet Events, Hadronic Collisions, Scattering, Lhc, Qcd, Calorimeter, Collider, Probe
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-121560DOI: 10.1088/1367-2630/15/3/033038ISI: 000316803100002Scopus ID: 2-s2.0-84973468811OAI: oai:DiVA.org:kth-121560DiVA: diva2:619089
Funder
Swedish Research Council
Note

QC 20130502. Author count: 2917

Available from: 2013-05-02 Created: 2013-05-02 Last updated: 2017-12-06Bibliographically approved

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Strandberg, Jonas

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Jovicevic, JelenaKuwertz, EmmaLund-Jensen, BengtStrandberg, Jonas
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