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    Measurement of the elliptic anisotropy of charged particles produced in PbPb collisions at √(s)NN=2.76 TeV

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    Baringer_1-7-2013.pdf (2.076Mb)
    Issue Date
    2013-01-07
    Author
    Baringer, Philip S.
    Bean, Alice
    Benelli, Gabriele
    Grachov, Oleg A.
    Kenny, R. P., III
    Murray, Michael J.
    Noonan, Danny
    Radicci, Valeria
    Sanders, Stephen J.
    Tinti, Gemma
    Wood, Jeffrey Scott
    Zhukova, Victoria
    Chatrchyan, S.
    Khachatryan, V.
    Sirunyan, A. M.
    Tumasyan, A.
    Adam, W.
    Bergauer, T.
    Dragicevic, M.
    Erö, J.
    Publisher
    American Physical Society
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Metadata
    Show full item record
    Abstract
    The anisotropy of the azimuthal distributions of charged particles produced in √sNN=2.76 TeV PbPb collisions is studied with the CMS experiment at the LHC. The elliptic anisotropy parameter, v(2), defined as the second coefficient in a Fourier expansion of the particle invariant yields, is extracted using the event-plane method, two- and four-particle cumulants, and Lee-Yang zeros. The anisotropy is presented as a function of transverse momentum (p(T)), pseudorapidity (η) over a broad kinematic range, 0.3<p(T)<20 GeV/c, |η|<2.4, and in 12 classes of collision centrality from 0 to 80%. The results are compared to those obtained at lower center-of-mass energies, and various scaling behaviors are examined. When scaled by the geometric eccentricity of the collision zone, the elliptic anisotropy is found to obey a universal scaling with the transverse particle density for different collision systems and center-of-mass energies.
    Description
    This is the publisher's version, also available electronically from http://journals.aps.org/prc/abstract/10.1103/PhysRevC.87.014902.
    URI
    http://hdl.handle.net/1808/15669
    DOI
    https://doi.org/10.1103/PhysRevC.87.014902
    ISSN
    0556-2813
    Collections
    • Physics & Astronomy Scholarly Works [1744]
    Citation
    Chatrchyan, S. et al. (CMS Collaboration). (2013). "Measurement of the elliptic anisotropy of charged particles produced in PbPb collisions at √(s)NN=2.76 TeV." Physical Review C, 87(1):014802. http://www.dx.doi.org/10.1103/PhysRevC.87.014902.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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