Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/88737
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Type: Journal article
Title: Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at √s = 7 TeV
Other Titles: Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at root s = 7 TeV
Author: The ATLAS Collaboration
Citation: European Physical Journal C: Particles and Fields, 2012; 72(11):2211-1-2211-22
Publisher: Springer
Issue Date: 2012
ISSN: 1434-6044
1434-6052
Statement of
Responsibility: 
The ATLAS Collaboration
Abstract: 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 T,1 and p T,2, with a mean p T approaching 1 TeV.
Description: ATLAS Collaboration Contributor: M. White for the University of Adelaide.
Rights: © CERN for the benefit of the ATLAS collaboration 2012. This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.
DOI: 10.1140/epjc/s10052-012-2211-y
Published version: http://dx.doi.org/10.1140/epjc/s10052-012-2211-y
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