@Article{ATLASCollaborationAad_etal2011,
author="ATLAS Collaboration (Aad, G. et al
and Amoros, G.
and Cabrera Urban, S.
and Castillo Gimenez, V.
and Costa, M. J.
and Escobar, C.
and Ferrer, A.
and Fuster, J.
and Garcia, C.
and Gonzalez de la Hoz, S.
and Hernandez Jimenez, Y.
and Higon-Rodriguez, E.
and Irles Quiles, A.
and Kaci, M.
and Lacasta, C.
and Lacuesta, V. R.
and Marti-Garcia, S.
and Mi{\~A}{\textpm}ano, M.
and Mitsou, V. A.
and Moles-Valls, R.
and Moreno Llacer, M.
and Oliver Garcia, E.
and Perez Garcia-Esta{\~A}{\textpm}, M. T.
and Ros, E.
and Salt, J.
and Solans, C. A.
and Soldevila, U.
and Sanchez, J.
and Torro Pastor, E.
and Valladolid Gallego, E.
and Valls Ferrer, J. A.
and Villaplana Perez, M.
and Vos, M.
and Wildauer, A.",
title="Charged-particle multiplicities in pp interactions measured with the ATLAS detector at the LHC",
journal="New Journal of Physics",
year="2011",
publisher="Iop Publishing Ltd",
volume="13",
pages="053033--68pp",
abstract="Measurements are presented from proton-proton collisions at centre-of-mass energies of root s = 0.9, 2.36 and 7 TeV recorded with the ATLAS detector at the LHC. Events were collected using a single-arm minimum-bias trigger. The charged-particle multiplicity, its dependence on transverse momentum and pseudorapidity and the relationship between the mean transverse momentum and charged-particle multiplicity are measured. Measurements in different regions of phase space are shown, providing diffraction-reduced measurements as well as more inclusive ones. The observed distributions are corrected to well-defined phase-space regions, using model-independent corrections. The results are compared to each other and to various Monte Carlo (MC) models, including a new AMBT1 pythia6 tune. In all the kinematic regions considered, the particle multiplicities are higher than predicted by the MC models. The central charged-particle multiplicity per event and unit of pseudorapidity, for tracks with p(T) > 100 MeV, is measured to be 3.483 +/- 0.009 (stat) +/- 0.106 (syst) at root s = 0.9 TeV and 5.630 +/- 0.003 (stat) +/- 0.169 (syst) at root s = 7 TeV.",
optnote="ISI:000292002100003",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=667), last updated on Mon, 19 Dec 2011 15:23:12 +0000",
issn="1367-2630",
doi="10.1088/1367-2630/13/5/053033",
opturl="http://arxiv.org/abs/1012.5104",
opturl="https://doi.org/10.1088/1367-2630/13/5/053033",
archivePrefix="arXiv",
eprint="1012.5104",
language="English"
}