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[superscript −1] of integrated lu...

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Main Author: Taylor, Frank E
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: Springer-Verlag 2016
Online Access:http://hdl.handle.net/1721.1/105494
https://orcid.org/0000-0002-7586-7253
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author Taylor, Frank E
author2 Massachusetts Institute of Technology. Department of Physics
author_facet Massachusetts Institute of Technology. Department of Physics
Taylor, Frank E
author_sort Taylor, Frank E
collection MIT
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[superscript −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[subscript T,1] and p[subscript T,2], with a mean p[subscript T] approaching 1 TeV.
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spelling mit-1721.1/1054942022-09-29T18:59:01Z Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at √s=7 TeV Taylor, Frank E Massachusetts Institute of Technology. Department of Physics Taylor, Frank E 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[superscript −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[subscript T,1] and p[subscript T,2], with a mean p[subscript T] approaching 1 TeV. National Science Foundation (U.S.) 2016-12-01T18:06:42Z 2016-12-01T18:06:42Z 2012-11 2012-10 Article http://purl.org/eprint/type/JournalArticle 1434-6044 1434-6052 http://hdl.handle.net/1721.1/105494 The ATLAS Collaboration et al. “Measurement of Event Shapes at Large Momentum Transfer with the ATLAS Detector in Pp Collisions at $\sqrt{\mathbf{s}}=7\ \mathrm{TeV}$.” The European Physical Journal C 72.11 (2012): n. pag. © CERN https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1140/epjc/s10052-012-2211-y European Physical Journal C Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Springer-Verlag Springer
spellingShingle Taylor, Frank E
Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at √s=7 TeV
title 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_short 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/1721.1/105494
https://orcid.org/0000-0002-7586-7253
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