@Article{ATLASCollaborationAad_etal2012,
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 Fiorini, L.
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="Measurement of the centrality dependence of the charged particle pseudorapidity distribution in lead-lead collisions at root s(NN)=2.76 TeV with the ATLAS detector",
journal="Physics Letters B",
year="2012",
publisher="Elsevier Science Bv",
volume="710",
number="3",
pages="363--382",
abstract="The ATLAS experiment at the LHC has measured the centrality dependence of charged particle pseudorapidity distributions over vertical bar eta vertical bar < 2 in lead-lead collisions at a nucleon-nucleon centre-of-mass energy of root s(NN) = 2.76 TeV. In order to include particles with transverse momentum as low as 30 MeV, the data were recorded with the central solenoid magnet off. Charged particles were reconstructed with two algorithms (2-point {\textquoteleft}{\textquoteleft}tracklets{\textquoteright}{\textquoteright} and full tracks) using information from the pixel detector only. The lead-lead collision centrality was characterized by the total transverse energy in the forward calorimeter in the range 3.2 < vertical bar eta vertical bar< 4.9. Measurements are presented of the per-event charged particle pseudorapidity distribution, dN(ch)/d eta, and the average charged particle multiplicity in the pseudorapidity interval vertical bar eta vertical bar < 0.5 in several intervals of collision centrality. The results are compared to previous mid-rapidity measurements at the LHC and RHIC. The variation of the mid-rapidity charged particle yield per colliding nucleon pair with the number of participants is consistent with lower root s(NN) results. The shape of the dN(ch)/d eta distribution is found to be independent of centrality within the systematic uncertainties of the measurement.",
optnote="WOS:000303081900001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1009), last updated on Thu, 01 Nov 2012 19:58:01 +0000",
issn="0370-2693",
doi="10.1016/j.physletb.2012.02.045",
opturl="http://arxiv.org/abs/1108.6027",
opturl="https://doi.org/10.1016/j.physletb.2012.02.045",
archivePrefix="arXiv",
eprint="1108.6027",
language="English"
}