@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="Measurement of the centrality dependence of J/psi yields and observation of Z production in lead-lead collisions with the ATLAS detector at the LHC",
journal="Physics Letters B",
year="2011",
publisher="Elsevier Science Bv",
volume="697",
number="4",
pages="294--312",
optkeywords="ATLAS; LHC; Heavy ions; J/psi; Z boson; Centrality dependence",
abstract="Using the ATLAS detector, a centrality-dependent suppression has been observed in the yield of J/psi mesons produced in the collisions of lead ions at the Large Hadron Collider. In a sample of minimum-bias lead-lead collisions at a nucleon-nucleon centre of mass energy root s(NN) = 2.76 TeV, corresponding to an integrated luminosity of about 6.7 $\mu$b(-1), J/psi mesons are reconstructed via their decays to mu(+)mu(-) pairs. The measured J/psi yield, normalized to the number of binary nucleon-nucleon collisions, is found to significantly decrease from peripheral to central collisions. The centrality dependence is found to be qualitatively similar to the trends observed at previous, lower energy experiments. The same sample is used to reconstruct Z bosons in the mu(+)mu(-) final state, and a total of 38 candidates are selected in the mass window of 66 to 116 GeV. The relative Z yields as a function of centrality are also presented, although no conclusion can be inferred about their scaling with the number of binary collisions, because of limited statistics. This analysis provides the first results on J/psi and Z production in lead-lead collisions at the LHC.",
optnote="ISI:000288300400006",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=543), last updated on Wed, 24 Aug 2011 14:10:36 +0000",
issn="0370-2693",
doi="10.1016/j.physletb.2011.02.006",
opturl="http://arxiv.org/abs/arXiv:1012.5419",
opturl="https://doi.org/10.1016/j.physletb.2011.02.006",
archivePrefix="arXiv",
eprint="arXiv:1012.5419",
language="English"
}