Measurement of hard double-parton interactions in W(→lν)+ 2 jet events at s√=7 TeV with the ATLAS detector

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dc.contributor.authorOnofre, A.por
dc.contributor.authorATLAS Collaboration
dc.contributor.authorCastro, Nuno Filipepor
dc.date.accessioned2014-12-16T15:13:48Z
dc.date.available2014-12-16T15:13:48Z
dc.date.issued2013
dc.description.abstractThe production of W bosons in association with two jets in proton–proton collisions at a centre-of-mass energy of √ 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 (D) DP , has been measured through the pT balance between the two jets and amounts to f (D) DP = 0.08 ± 0.01 (stat.) ± 0.02 (sys.) for jets with transverse momentum pT > 20 GeV and rapidity |y| < 2.8. This corresponds to a measurement of the effective area parameter for hard double-parton interactions of σeff = 15 ± 3 (stat.) +5 −3 (sys.) mb.por
dc.description.sponsorshipWe thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark; EPLANET, ERC and NSRF, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT and NSRF, Greece; ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; BRF and RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Leverhulme Trust, UK; DOE and NSF, USA. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from CERN and the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFNCNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK) and BNL (USA) and in the Tier-2 facilities worldwide.por
dc.distributioninternationalpor
dc.identifier.citationAad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S. A., Abdelalim, A. A., . . . Collaboration, A. (2013). Measurement of hard double-parton interactions in W(-> lv) plus 2-jet events at root s=7 TeV with the ATLAS detector. [Article]. New Journal of Physics, 15. doi: 10.1088/1367-2630/15/3/033038por
dc.identifier.doi10.1088/1367-2630/15/3/033038por
dc.identifier.issn1367-2630
dc.identifier.urihttps://hdl.handle.net/1822/32071
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherIOP Publishingpor
dc.relation.publisherversionhttp://iopscience.iop.org/1367-2630/15/3/033038/por
dc.rightsopenAccesspor
dc.subject.fosCiências Naturaispor
dc.subject.wosScience & Technologypor
dc.titleMeasurement of hard double-parton interactions in W(→lν)+ 2 jet events at s√=7 TeV with the ATLAS detectorpor
dc.typearticlepor
dspace.entity.typePublicationen
oaire.citationEndPage40por
oaire.citationIssue3por
oaire.citationStartPage1por
oaire.citationTitleNew Journal of Physicspor
oaire.citationVolume15por
sdum.journalNew Journal of Physicspor
sdum.publicationstatuspublishedpor

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