Dependence on pseudorapidity and on centrality of charged hadron production in PbPb collisions at √sNN = 2.76 TeV

The CMS collaboration

doi:10.1007/JHEP08(2011)141

Dependence on pseudorapidity and on centrality of charged hadron production in PbPb collisions at √^sNN = 2.76 TeV

The CMS collaboration

Yerevan Physics Institute
Institut für Hochenergiephysik
European Organization for Nuclear Research
National Centre for Particle and High Energy Physics
University of Antwerp
Vrjie Universiteit Brussel
Université Libre de Bruxelles
Ghent University
University of Louvain
Université de Mons
Centro Brasileiro de Pesquisas Fisicas
Rua São Francisco de Xavier
São Paulo State University
Federal University of ABC (UFABC)
California Institute of Technology
Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences
University of Sofia
Institute of High Energy Physics, Chinese Academy of Sciences
Tsinghua University
Universidad de Los Andes, Colombia
University of Split
Ruđer Bošković Institute
University of Cyprus
Charles University
Egyptian Network of High Energy Physics
Suez Canal University
British University in Egypt
Fayoum University
Ain Shams University
National Institute of Chemical Physics and Biophysics, Tallinn
University of Helsinki
Helsinki Institute of Physics
LUT University
Université Paris-Sud
CEA/UVSQ/CNRS
Soltan Institute for Nuclear Studies
Massachusetts Institute of Technology
Université de Strasbourg
Université de Haute Alsace
IGFL, Université de Lyon, Université Lyon 1
Tbilisi State University
RWTH Aachen University
Moscow State University
c/o DESY
Joint Faculty of the Brandenburg University of Technology Cottbus Senftenberg
Universität Hamburg
Institute of Meteorology and Climate Research
Institute of Nuclear Physics ”Demokritos”
University of Athens
University of Ioannina
Wigner Research Centre for Physics
Institute of Nuclear Research ATOMKI
Eötvös Loránd University
University of Debrecen
Panjab University
University of Delhi
Saha Institute of Nuclear Physics
Bhabha Atomic Research Centre
Tata Institute of Fundamental Research, Mumbai
University of Visva-Bharati
Institute for Studies in Theoretical Physics and Mathematics (IPM)
Sharif University of Technology
Isfahan University of Technology
Shiraz University
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Politecnico di Bari
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University of Florence
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University of Siena
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Laboratory of Molecular Pathology
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Kangwon National University
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Chonnam National University
Konkuk University
Korea University
University of Seoul
Sungkyunkwan University
Vilnius University
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University of Auckland
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Quaid-i-Azam University
University of Warsaw
Lisboa
Joint Institute for Nuclear Research, Dubna
Petersburg Nuclear Physics Institute (PNPI)
Institute for Nuclear Research of the Russian Academy of Sciences
Institute for Theoretical and Experimental Physics
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Kurchatov Institute
University of Belgrade
University of Belgrade
Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT)
Universidad Autónoma de Madrid
University of Oviedo
CSIC-Univ. Cantabria
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Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

123 Citations (Scopus)

Résumé

A measurement is presented of the charged hadron multiplicity in hadronic PbPb collisions, as a function of pseudorapidity and centrality, at a collision energy of 2.76TeV per nucleon pair. The data sample is collected using the CMS detector and a minimum-bias trigger, with the CMS solenoid off. The number of charged hadrons is measured both by counting the number of reconstructed particle hits and by forming hit doublets of pairs of layers in the pixel detector. The two methods give consistent results. The charged hadron multiplicity density, dN_ch/dη/η=0, for head-on collisions is found to be 1612±55, where the uncertainty is dominated by systematic effects. Comparisons of these results to previous measurements and to various models are also presented.

langue originale	Anglais
Numéro d'article	141
journal	Journal of High Energy Physics
Volume	2011
Numéro de publication	8
Les DOIs	https://doi.org/10.1007/JHEP08(2011)141
état	Publié - 1 janv. 2011

Accès au document

10.1007/JHEP08(2011)141

Contient cette citation

@article{6949916204e84917a4f62a03172a1521,

title = "Dependence on pseudorapidity and on centrality of charged hadron production in PbPb collisions at √sNN = 2.76 TeV",

abstract = "A measurement is presented of the charged hadron multiplicity in hadronic PbPb collisions, as a function of pseudorapidity and centrality, at a collision energy of 2.76TeV per nucleon pair. The data sample is collected using the CMS detector and a minimum-bias trigger, with the CMS solenoid off. The number of charged hadrons is measured both by counting the number of reconstructed particle hits and by forming hit doublets of pairs of layers in the pixel detector. The two methods give consistent results. The charged hadron multiplicity density, dNch/dη/η=0, for head-on collisions is found to be 1612±55, where the uncertainty is dominated by systematic effects. Comparisons of these results to previous measurements and to various models are also presented.",

keywords = "Hadron-Hadron Scattering",

author = "\{The CMS collaboration\} and S. Chatrchyan and V. Khachatryan and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and T. Bergauer and M. Dragicevic and J. Er{\"o} and C. Fabjan and M. Friedl and R. Fr{\"u}hwirth and Ghete, \{V. M.\} and J. Hammer and S. H{\"a}nsel and M. Hoch and N. H{\"o}rmann and J. Hrubec and M. Jeitler and W. Kiesenhofer and M. Krammer and D. Liko and I. Mikulec and M. Pernicka and B. Rahbaran and H. Rohringer and R. Sch{\"o}fbeck and J. Strauss and A. Taurok and F. Teischinger and C. Trauner and P. Wagner and W. Waltenberger and G. Walzel and E. Widl and Wulz, \{C. E.\} and V. Mossolov and N. Shumeiko and \{Suarez Gonzalez\}, J. and S. Bansal and L. Benucci and \{De Wolf\}, \{E. A.\} and X. Janssen and F. Beaudette and \{Granier de Cassagnac\}, R. and C. Ochando and P. Paganini and R. Salerno and C. Thiebaux and A. Zabi and M. Nguyen",

year = "2011",

month = jan,

day = "1",

doi = "10.1007/JHEP08(2011)141",

language = "English",

volume = "2011",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "8",

}

TY - JOUR

T1 - Dependence on pseudorapidity and on centrality of charged hadron production in PbPb collisions at √sNN = 2.76 TeV

AU - The CMS collaboration

AU - Chatrchyan, S.

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Erö, J.

AU - Fabjan, C.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hammer, J.

AU - Hänsel, S.

AU - Hoch, M.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Kiesenhofer, W.

AU - Krammer, M.

AU - Liko, D.

AU - Mikulec, I.

AU - Pernicka, M.

AU - Rahbaran, B.

AU - Rohringer, H.

AU - Schöfbeck, R.

AU - Strauss, J.

AU - Taurok, A.

AU - Teischinger, F.

AU - Trauner, C.

AU - Wagner, P.

AU - Waltenberger, W.

AU - Walzel, G.

AU - Widl, E.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Bansal, S.

AU - Benucci, L.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Beaudette, F.

AU - Granier de Cassagnac, R.

AU - Ochando, C.

AU - Paganini, P.

AU - Salerno, R.

AU - Thiebaux, C.

AU - Zabi, A.

AU - Nguyen, M.

PY - 2011/1/1

Y1 - 2011/1/1

N2 - A measurement is presented of the charged hadron multiplicity in hadronic PbPb collisions, as a function of pseudorapidity and centrality, at a collision energy of 2.76TeV per nucleon pair. The data sample is collected using the CMS detector and a minimum-bias trigger, with the CMS solenoid off. The number of charged hadrons is measured both by counting the number of reconstructed particle hits and by forming hit doublets of pairs of layers in the pixel detector. The two methods give consistent results. The charged hadron multiplicity density, dNch/dη/η=0, for head-on collisions is found to be 1612±55, where the uncertainty is dominated by systematic effects. Comparisons of these results to previous measurements and to various models are also presented.

AB - A measurement is presented of the charged hadron multiplicity in hadronic PbPb collisions, as a function of pseudorapidity and centrality, at a collision energy of 2.76TeV per nucleon pair. The data sample is collected using the CMS detector and a minimum-bias trigger, with the CMS solenoid off. The number of charged hadrons is measured both by counting the number of reconstructed particle hits and by forming hit doublets of pairs of layers in the pixel detector. The two methods give consistent results. The charged hadron multiplicity density, dNch/dη/η=0, for head-on collisions is found to be 1612±55, where the uncertainty is dominated by systematic effects. Comparisons of these results to previous measurements and to various models are also presented.

KW - Hadron-Hadron Scattering

U2 - 10.1007/JHEP08(2011)141

DO - 10.1007/JHEP08(2011)141

M3 - Article

AN - SCOPUS:80053129601

SN - 1126-6708

VL - 2011

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 8

M1 - 141

ER -

Dependence on pseudorapidity and on centrality of charged hadron production in PbPb collisions at √sNN = 2.76 TeV

Résumé

Accès au document

Empreinte digitale

Contient cette citation

Dependence on pseudorapidity and on centrality of charged hadron production in PbPb collisions at √^sNN = 2.76 TeV