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Title: Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality in Au+Au Collisions at sqrt sNN = 200 GeV

Abstract

Forward-backward multiplicity correlation strengths have been measured with the STAR detector for Au+Au and p+p collisions at {radical}s{sub NN} = 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 is in qualitative agreement with the predictions from the DPM and indicates the presence of multiple parton interactions.

Authors:
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
Nuclear Science Division
OSTI Identifier:
986232
Report Number(s):
LBNL-3785E
TRN: US1006608
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Journal Article
Journal Name:
Physical Review Letter
Additional Journal Information:
Journal Name: Physical Review Letter
Country of Publication:
United States
Language:
English
Subject:
73; COLOR; CONDENSATES; FLUCTUATIONS; GLASS; MULTIPLICITY; 172301

Citation Formats

STAR Collaboration, and Abelev, Betty. Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality in Au+Au Collisions at sqrt sNN = 200 GeV. United States: N. p., 2010. Web.
STAR Collaboration, & Abelev, Betty. Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality in Au+Au Collisions at sqrt sNN = 200 GeV. United States.
STAR Collaboration, and Abelev, Betty. 2010. "Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality in Au+Au Collisions at sqrt sNN = 200 GeV". United States. https://www.osti.gov/servlets/purl/986232.
@article{osti_986232,
title = {Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality in Au+Au Collisions at sqrt sNN = 200 GeV},
author = {STAR Collaboration and Abelev, Betty},
abstractNote = {Forward-backward multiplicity correlation strengths have been measured with the STAR detector for Au+Au and p+p collisions at {radical}s{sub NN} = 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 is in qualitative agreement with the predictions from the DPM and indicates the presence of multiple parton interactions.},
doi = {},
url = {https://www.osti.gov/biblio/986232}, journal = {Physical Review Letter},
number = ,
volume = ,
place = {United States},
year = {Mon Jul 05 00:00:00 EDT 2010},
month = {Mon Jul 05 00:00:00 EDT 2010}
}