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Study of hard double-parton scattering in four-jet events in pp collisions at √s=7 TeV with the ATLAS experiment

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    SYSNO ASEP0522566
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleStudy of hard double-parton scattering in four-jet events in pp collisions at √s=7 TeV with the ATLAS experiment
    Author(s) Aaboud, M. (MA)
    Aad, G. (FR)
    Abbott, B. (US)
    Chudoba, Jiří (FZU-D) RID, ORCID
    Havránek, Miroslav (FZU-D) RID
    Hejbal, Jiří (FZU-D) RID
    Jakoubek, Tomáš (FZU-D) RID, ORCID
    Kepka, Oldřich (FZU-D) RID
    Kupčo, Alexander (FZU-D) RID, ORCID
    Kůs, Vlastimil (FZU-D) RID
    Lokajíček, Miloš (FZU-D) RID, ORCID
    Lysák, Roman (FZU-D) RID, ORCID
    Marčišovský, Michal (FZU-D) RID, ORCID
    Mikeštíková, Marcela (FZU-D) RID, ORCID
    Němeček, Stanislav (FZU-D) RID, ORCID
    Penc, Ondřej (FZU-D) ORCID
    Šícho, Petr (FZU-D) RID, ORCID
    Staroba, Pavel (FZU-D) RID, ORCID
    Svatoš, Michal (FZU-D) RID, ORCID
    Taševský, Marek (FZU-D) RID, ORCID
    Vrba, Václav (FZU-D) RID
    Number of authors2856
    Article number110
    Source TitleJournal of High Energy Physics - ISSN 1029-8479
    Roč. 2016, č. 11 (2016), s. 1-52
    Number of pages52 s.
    Languageeng - English
    CountryUS - United States
    KeywordsATLAS ; CERN LHC Coll ; final state: (4jet) ; neural network ; phase space ; jet: rapidity ; data analysis method ; overlap ; jet: transverse momentum
    Subject RIVBF - Elementary Particles and High Energy Physics
    OBOR OECDParticles and field physics
    Způsob publikováníOpen access
    Institutional supportFZU-D - RVO:68378271
    UT WOS000399296300002
    EID SCOPUS84997501206
    AnnotationInclusive four-jet events produced in proton-proton collisions at a centre-of-mass energy of s√=7 TeV are analysed for the presence of hard double-parton scattering using data corresponding to an integrated luminosity of 37.3 pb−1, collected with the ATLAS detector at the LHC. The contribution of hard double-parton scattering to the production of four-jet events is extracted using an artificial neural network, assuming that hard double-parton scattering can be approximated by an uncorrelated overlaying of dijet events. For events containing at least four jets with transverse momentum pT ≥ 20 GeV and pseudorapidity |η| ≤ 4.4, and at least one having pT ≥ 42.5 GeV, the contribution of hard double-parton scattering is estimated to be fDPS = 0.092+ 0.005− 0.011 (stat.)+ 0.033− 0.037 (syst.).
    WorkplaceInstitute of Physics
    ContactKristina Potocká,, Tel.: 220 318 579
    Year of Publishing2020
    Electronic address
Number of the records: 1