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Measurement of charged-particle event shape variables in inclusive √(s)=7  TeV proton-proton interactions with the ATLAS detector

Author(s)
Taylor, Frank E.
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.

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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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Abstract
The measurement of charged-particle event shape variables is presented in inclusive inelastic pp collisions at a center-of-mass energy of 7 TeV using the ATLAS detector at the LHC. The observables studied are the transverse thrust, thrust minor, and transverse sphericity, each defined using the final-state charged particles’ momentum components perpendicular to the beam direction. Events with at least six charged particles are selected by a minimum-bias trigger. In addition to the differential distributions, the evolution of each event shape variable as a function of the leading charged-particle transverse momentum, charged-particle multiplicity, and summed transverse momentum is presented. Predictions from several Monte Carlo models show significant deviations from data.
Date issued
2013-08
URI
http://hdl.handle.net/1721.1/81346
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review D
Publisher
American Physical Society
Citation
Aad, G., T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, A. A. Abdelalim, O. Abdinov, et al. “Measurement of charged-particle event shape variables in inclusive sqrt[(s)]=7  TeV proton-proton interactions with the ATLAS detector.” Physical Review D 88, no. 3 (August 2013). © 2013 CERN
Version: Final published version
ISSN
1550-7998
1089-4918

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