Measurement of charged-particle event shape variables in inclusive root(s)=7 TeV proton-proton interactions with the ATLAS detector
2013 (English)In: Physical Review D, ISSN 1550-7998, Vol. 88, no 3, UNSP 032004- p.Article in journal (Refereed) Published
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 eventshape 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.
Place, publisher, year, edition, pages
2013. Vol. 88, no 3, UNSP 032004- p.
IdentifiersURN: urn:nbn:se:uu:diva-207087DOI: 10.1103/PhysRevD.88.032004ISI: 000322785400002OAI: oai:DiVA.org:uu-207087DiVA: diva2:646531
ATLAS Collaboration, for complete list of authors see http://dx.doi.org/10.1103/PhysRevD.88.0320042013-09-092013-09-092013-09-09Bibliographically approved