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

doi:10.1088/1367-2630/15/3/033038

Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/32071

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Campo DC	Valor	Idioma
dc.contributor.author	Onofre, A.	por
dc.contributor.author	Castro, Nuno Filipe Silva Fernandes	por
dc.contributor.author	ATLAS Collaboration	-
dc.date.accessioned	2014-12-16T15:13:48Z	-
dc.date.available	2014-12-16T15:13:48Z	-
dc.date.issued	2013	-
dc.identifier.citation	Aad, 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: 10.1088/1367-2630/15/3/033038	por
dc.identifier.issn	1367-2630	-
dc.identifier.uri	https://hdl.handle.net/1822/32071	-
dc.description.abstract	The 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.sponsorship	We 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.language.iso	eng	por
dc.publisher	IOP Publishing	por
dc.rights	openAccess	por
dc.title	Measurement of hard double-parton interactions in W(→lν)+ 2 jet events at s√=7 TeV with the ATLAS detector	por
dc.type	article	por
dc.peerreviewed	yes	por
dc.relation.publisherversion	http://iopscience.iop.org/1367-2630/15/3/033038/	por
sdum.publicationstatus	published	por
oaire.citationStartPage	1	por
oaire.citationEndPage	40	por
oaire.citationIssue	3	por
oaire.citationTitle	New Journal of Physics	por
oaire.citationVolume	15	por
dc.identifier.doi	10.1088/1367-2630/15/3/033038	por
dc.subject.fos	Ciências Naturais::Ciências Físicas	por
dc.subject.wos	Science & Technology	por
sdum.journal	New Journal of Physics	por
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