Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at sqrt{s} = 7 TeV

Aad, G.; Abbott, B.; Abdallah, J.; Böhm, Jan; Chudoba, Jiří; Gallus, Petr; Gunther, Jaroslav; Jakoubek, Tomáš; Juránek, Vojtěch; Kepka, Oldřich; Kupčo, Alexander; Kůs, Vlastimil; Lokajíček, Miloš; Marčišovský, Michal; Mikeštíková, Marcela; Myška, Miroslav; Němeček, Stanislav; Růžička, Pavel; Schovancová, Jaroslava; Šícho, Petr; Staroba, Pavel; Svatoš, Michal; Taševský, Marek; Tic, Tomáš; Valenta, J.; Vrba, Václav; Zeman, Martin

doi:https://dx.doi.org/10.1140/epjc/s10052-012-2211-y

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Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at sqrt{s} = 7 TeV

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SYSNO ASEP	0389832
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at sqrt{s} = 7 TeV
Author(s)	Aad, G. (DE) Abbott, B. (US) Abdallah, J. (ES) Böhm, Jan (FZU-D) Chudoba, Jiří (FZU-D)_{RID, ORCID} Gallus, Petr (FZU-D)_RID Gunther, Jaroslav (FZU-D) Jakoubek, Tomáš (FZU-D)_{RID, ORCID} Juránek, Vojtěch (FZU-D) Kepka, Oldřich (FZU-D)_{RID, ORCID} Kupčo, Alexander (FZU-D)_{RID, ORCID} Kůs, Vlastimil (FZU-D)_RID Lokajíček, Miloš (FZU-D)_{RID, ORCID} Marčišovský, Michal (FZU-D)_{RID, ORCID} Mikeštíková, Marcela (FZU-D)_{RID, ORCID} Myška, Miroslav (FZU-D) Němeček, Stanislav (FZU-D)_{RID, ORCID} Růžička, Pavel (FZU-D) Schovancová, Jaroslava (FZU-D) Šícho, Petr (FZU-D)_{RID, ORCID} Staroba, Pavel (FZU-D)_{RID, ORCID} Svatoš, Michal (FZU-D)_{RID, ORCID} Taševský, Marek (FZU-D)_{RID, ORCID} Tic, Tomáš (FZU-D) Valenta, J. (CZ) Vrba, Václav (FZU-D)_{RID, ORCID} Zeman, Martin (FZU-D)_RID
Number of authors	2863
Source Title	European Physical Journal C. - : Springer - ISSN 1434-6044 Roč. 72, č. 11 (2012), s. 1-22
Number of pages	22 s.
Language	eng - English
Country	DE - Germany
Keywords	event shapes ; jets ; LHC ; ATLAS ; parton showers
Subject RIV	BF - Elementary Particles and High Energy Physics
R&D Projects	LA08032 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z10100502 - FZU-D (2005-2011)
UT WOS	000312074800015
DOI	10.1140/epjc/s10052-012-2211-y
Annotation	A measurement of event shape variables is presented for large momentum transfer proton-proton collisions using the ATLAS detector at the Large Hadron Collider. Six event shape variables calculated using hadronic jets are studied in inclusive multi-jet events in 35 pb^-1 of integrated luminosity at a center-of-mass energy of sqrt(s) = 7 TeV. These measurements are compared to predictions by three Monte Carlo event generators containing leading-logarithmic parton showers matched to leading order matrix elements for 2 to 2 and 2 to n (n=2,...6) scattering. Measurements of the third-jet resolution parameter, aplanarity, thrust, sphericity, and transverse sphericity are generally well described. The mean value of each event shape variable is evaluated as a function of the average momentum of the two leading jets pT1 and pT2, with a mean pT approaching 1 TeV.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2013

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