Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality in Au plus Au Collisions at root s(NN)=200 GeV

Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality in Au plus Au Collisions at root s(NN)=200 GeV

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 u...

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Bibliographic Details
Main Authors: 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
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: American Physical Society 2010
Online Access:http://hdl.handle.net/1721.1/52455
https://orcid.org/0000-0002-5515-4563
https://orcid.org/0000-0001-5839-707X
https://orcid.org/0000-0002-0031-1963
https://orcid.org/0000-0002-9107-6312
Description
Summary: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.

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