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

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...

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Autor principal: Aad, G.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_14346044_v72_n11_p_Aad
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_14346044_v72_n11_p_Aad2023-10-03T16:14:46Z Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at √s =7 TeV Aad, G. 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 √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→2 and 2→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 p<inf>T,1</inf> and p<inf>T,2</inf>, with a mean pT approaching 1 TeV. © 2012, CERN for the benefit of the ATLAS collaboration. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14346044_v72_n11_p_Aad
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description 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 √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→2 and 2→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 p<inf>T,1</inf> and p<inf>T,2</inf>, with a mean pT approaching 1 TeV. © 2012, CERN for the benefit of the ATLAS collaboration.
format JOUR
author Aad, G.
spellingShingle Aad, G.
Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at √s =7 TeV
author_facet Aad, G.
author_sort Aad, G.
title Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at √s =7 TeV
title_short Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at √s =7 TeV
title_full Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at √s =7 TeV
title_fullStr Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at √s =7 TeV
title_full_unstemmed Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at √s =7 TeV
title_sort measurement of event shapes at large momentum transfer with the atlas detector in pp collisions at √s =7 tev
url http://hdl.handle.net/20.500.12110/paper_14346044_v72_n11_p_Aad
work_keys_str_mv AT aadg measurementofeventshapesatlargemomentumtransferwiththeatlasdetectorinppcollisionsats7tev
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