Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at √s=7 TeV
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Measurement of event.pdf
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1.43 MB
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Checksum (MD5)
bccd196b7a544a7d0d6268b93d337c3c
Author(s)
Taylor, Frank E
Date Issued
November 2012
Journal
European Physical Journal C
Publisher
Springer-Verlag
Citation
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
Version
Final published version
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[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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 4.0 International License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1140/epjc/s10052-012-2211-y
