Naslov
Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality in Au+Au Collisions at s(NN)**(1/2) = 200-GeV

Autori
Abelev, B.I. ; ... Planinić, Mirko ; Poljak, Nikola ; ...

Izvornik
Physical Review Letters (0031-9007) 103 (2009), 17; 172301-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
multiplicity; correlation; centrality

Sažetak
Forward-backward multiplicity correlation strengths have been measured with the STAR detector for Au+Au and $\textit{; ; ; p+p}; ; ; $ collisions at $\sqrt{; ; ; 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 is in qualitative agreement with the predictions from the DPM and indicates the presence of multiple parton interactions.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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