Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality in Au plus Au Collisions at root s(NN)=200 GeV
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; Hoffman, Alan Michael; Walker, Matthew H; ... Show more Show less
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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.
Date issued
2009-10Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
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
ISSN
0031-9007