@Article{ATLASCollaborationAad_etal2016, author="ATLAS Collaboration (Aad, G. et al and Alvarez Piqueras, D. and Barranco Navarro, L. and Cabrera Urban, S. and Castillo Gimenez, V. and Cerda Alberich, L. and Costa, M. J. and Fernandez Martinez, P. and Ferrer, A. and Fiorini, L. and Fuster, J. and Garcia, C. and Garcia Navarro, J. E. and Gonzalez de la Hoz, S. and Hernandez Jimenez, Y. and Higon-Rodriguez, E. and Irles Quiles, A. and Jimenez Pena, J. and King, M. and Lacasta, C. and Lacuesta, V. R. and Marti-Garcia, S. and Mitsou, V. A. and Pedraza Lopez, S. and Rodriguez Rodriguez, D. and Romero Adam, E. and Ros, E. and Salt, J. and Sanchez Martinez, V. and Soldevila, U. and Sanchez, J. and Valero, A. and Valls Ferrer, J. A. and Vos, M.", title="Measurement of event-shape observables in Z -> l(+)l(-) events in pp collisions at root s=7 TeV with the ATLAS detector at the LHC", journal="European Physical Journal C", year="2016", publisher="Springer", volume="76", number="7", pages="375--40pp", abstract="Event-shape observables measured using charged particles in inclusive Z-boson events are presented, using the electron and muon decay modes of the Z bosons. The measurements are based on an integrated luminosity of 1.1 fb(-1) of proton-proton collisions recorded by the ATLAS detector at the LHC at a centre-of-mass energy root s = 7 TeV. Charged-particle distributions, excluding the lepton-antilepton pair from the Z-boson decay, are measured in different ranges of transverse momentum of the Z boson. Distributions include multiplicity, scalar sum of transverse momenta, beam thrust, transverse thrust, spherocity, and F-parameter, which are in particular sensitive to properties of the underlying event at small values of the Z-boson transverse momentum. The measured observables are compared with predictions from PYTHIA 8, Sherpa, and HERWIG 7. Typically, all three Monte Carlo generators provide predictions that are in better agreement with the data at high Z-boson transverse momenta than at low Z-boson transverse momenta, and for the observables that are less sensitive to the number of charged particles in the event.", optnote="WOS:000379351100001", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2801), last updated on Thu, 29 Sep 2016 10:50:54 +0000", issn="1434-6044", doi="10.1140/epjc/s10052-016-4176-8", opturl="http://arxiv.org/abs/1602.08980", opturl="https://doi.org/10.1140/epjc/s10052-016-4176-8", archivePrefix="arXiv", eprint="1602.08980", language="English" }