Growth of long range forward-backward multiplicity correlations with centrality in Au + Au collisions at square root of sNN = 200 GeV.
Phys Rev Lett
; 103(17): 172301, 2009 Oct 23.
Article
in En
| MEDLINE
| ID: mdl-19905749
ABSTRACT
Forward-backward multiplicity correlation strengths have been measured with the STAR detector for Au + Au and p + p collisions at square root of s(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 are in qualitative agreement with the predictions of the DPM and indicate the presence of multiple parton interactions.
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Collection:
01-internacional
Database:
MEDLINE
Type of study:
Prognostic_studies
/
Qualitative_research
Language:
En
Journal:
Phys Rev Lett
Year:
2009
Document type:
Article
Affiliation country:
United States