Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality in Au plus Au Collisions at root s(NN)=200 GeV
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Abelev-2009-Growth of Long Range Forward-Backward Multiplicity Correlations.pdf
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Author(s)
Surrow, Bernd
Sakuma, Tai
Leight, William Axel
Kocoloski, Adam Philip
Jones, Christopher LaDon
Corliss, Ross Cameron
Betancourt, Michael Joseph
Balewski, Jan T.
Redwine, Robert P
Milner, Richard G
Date Issued
October 2009
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
STAR Collaboration et al. “Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality in Au+Au Collisions at sNN=200 GeV.” Physical Review Letters 103.17 (2009): 172301. © 2009 The American Physical Society
Version
Final published version
Abstract
Forward-backward multiplicity correlation strengths have been measured with the STAR detector for Au+Au and p+p collisions at √sNN=200 GeV. Strong short- and long-range correlations (LRC) are seen in central Au+Au collisions. The magnitude of these correlations decrease with decreasing centrality until only short-range correlations are observed in peripheral Au+Au collisions. Both the dual parton model (DPM) and the color glass condensate (CGC) predict the existence of the long-range correlations. In the DPM, the fluctuation in the number of elementary (parton) inelastic collisions produces the LRC. In the CGC, longitudinal color flux tubes generate the LRC. The data are in qualitative agreement with the predictions of the DPM and indicate the presence of multiple parton interactions.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevLett.103.172301
