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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 ASEP 0522566 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Study 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, ORCID
Jakoubek, Tomáš (FZU-D) RID, ORCID
Kepka, Oldřich (FZU-D) RID, ORCID
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, ORCIDNumber of authors 2856 Article number 110 Source Title Journal of High Energy Physics. - : Springer - ISSN 1029-8479
Roč. 2016, č. 11 (2016), s. 1-52Number of pages 52 s. Language eng - English Country US - United States Keywords ATLAS ; CERN LHC Coll ; final state: (4jet) ; neural network ; phase space ; jet: rapidity ; data analysis method ; overlap ; jet: transverse momentum Subject RIV BF - Elementary Particles and High Energy Physics OECD category Particles and field physics Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 000399296300002 EID SCOPUS 84997501206 DOI 10.1007/JHEP11(2016)110 Annotation Inclusive 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.). Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2020 Electronic address http://hdl.handle.net/11104/0307037
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