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Study of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at s√ = 8 TeV with the ATLAS detector

dc.contributor.authorAaboud, M.
dc.contributor.authorAguilar Saavedra, Juan Antonio 
dc.contributor.authorAtlas Collaboration
dc.date.accessioned2020-03-05T09:19:30Z
dc.date.available2020-03-05T09:19:30Z
dc.date.issued2019-02-04
dc.identifier.citationÁlvarez Piqueras, D., Aparisi, P., Bailey, A. J., Barranco, L., Cabrera, S., Castillo, F. L., ... & Estrada, O. (2019). Study of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at s= 8 TeV with the ATLAS detector.es_ES
dc.identifier.urihttp://hdl.handle.net/10481/60024
dc.description.abstractThe inclusive production of four isolated charged leptons in pp collisions is analysed for the presence of hard double-parton scattering, using 20.2 fb−1 of data recorded in the ATLAS detector at the LHC at centre-of-mass energy s√ = 8 TeV. In the four-lepton invariant-mass range of 80<m4ℓ<1000 GeV, an artificial neural network is used to enhance the separation between single- and double-parton scattering based on the kinematics of the four leptons in the final state. An upper limit on the fraction of events originating from double-parton scattering is determined at 95% confidence level to be fDPS=0.042, which results in an estimated lower limit on the effective cross section at 95% confidence level of 1.0 mb.es_ES
dc.description.sponsorshipWe acknowledge the support of ANPCyT, Argentina; YerPhI, Ar-menia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azer-baijan; 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 and DNSRC, Denmark; IN2P3-CNRS, CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF, and MPG, Germany; GSRT, Greece; RGC, Hong Kong SAR, China; ISF and Benoziyo Center, Is-rael; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; NWO, Netherlands; RCN, Norway; MNiSW and NCN, Poland; FCT, Portu-gal; MNE/IFA, Romania; MES of Russia and NRC KI, Russian Fed-eration; JINR; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZŠ, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC and Wallen-berg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom; DOE and NSF, United States of America. In addition, in-dividual groups and members have received support from BCKDF, Canarie, CRC and Compute Canada, Canada; COST, ERC, ERDF, Hori-zon 2020, and Marie Skłodowska-Curie Actions, European Union; Investissements d’ Avenir Labex and Idex, ANR, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia pro-grammes co-financed by EU-ESF and the Greek NSRF, Greece; BSF-NSF and GIF, Israel; CERCA Programme Generalitat de Catalunya, Spain; The Royal Society and Leverhulme Trust, United Kingdom.es_ES
dc.language.isoenges_ES
dc.publisherElsevier BVes_ES
dc.rightsAtribución 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.subjectFour-lepton productiones_ES
dc.subjectDouble Drell–Yanes_ES
dc.subjectDouble parton-scatteringes_ES
dc.subjectHiggs golden decay channeles_ES
dc.titleStudy of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at s√ = 8 TeV with the ATLAS detectores_ES
dc.typejournal articlees_ES
dc.rights.accessRightsopen accesses_ES
dc.identifier.doi10.1016/j.physletb.2019.01.062


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