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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Publicado: 2012
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346044_v72_n11_p_Aad
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 paper:paper_14346044_v72_n11_p_Aad2023-06-08T16:14:47Z 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 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. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346044_v72_n11_p_Aad 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.
title Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at √s =7 TeV
spellingShingle 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
publishDate 2012
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346044_v72_n11_p_Aad
http://hdl.handle.net/20.500.12110/paper_14346044_v72_n11_p_Aad
_version_ 1768542611273940992

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