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Title

Measurement of charged-particle event shape variables in inclusive √(s)=7  TeV proton-proton interactions with the ATLAS detector
CollaborationWith : Abdelalim Aly, Ahmed Aly / Alexandre, Gauthier / Backes, Moritz / Barone, Gaetano / Bell, Paul / Bell, William / Benhar Noccioli, Eleonora / Blondel, Alain / Bucci, Francesca / Clark, Allan Geoffrey / Dao, Valerio / Doglioni, Caterina / Ferrere, Didier / Gadomski, Szymon / Gonzalez Sevilla, Sergio / Goulette, Marc / Iacobucci, Giuseppe / La Rosa, Alessandro / Lister, Alison / Martin Dit Latour, Bertrand / Mermod, Philippe / Mora Herrera, Maria Clemencia Rosario / Nektarijevic, Snezana / Nikolics, Katalin / Pasztor, Arpad / Picazio, Attilio / Pohl, Martin / Rosbach, Kilian / Rosselet, Laurent / Wu, Xin
Published in Physical Review. D. 2013, vol. 88, no. 03, p. 032004
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.
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Article (Published version) (719 Kb) - public document Free access
Other version: http://journals.aps.org/prd/abstract/10.1103/PhysRevD.88.032004
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Faculté des sciences / Section de physique / Département de physique nucléaire et corpusculaire
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(ISO format) 		ATLAS COLLABORATION. Measurement of charged-particle event shape variables in inclusive √(s)=7  TeV proton-proton interactions with the ATLAS detector. In: Physical Review. D, 2013, vol. 88, n° 03, p. 032004. doi: 10.1103/PhysRevD.88.032004 https://archive-ouverte.unige.ch/unige:40648

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Deposited on : 2014-10-03

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