∆φ∆η Correlations in Central Au+Au Collisions at √sN N = 200 GeV (CROSBI ID 210375)
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Podaci o odgovornosti
Adams, J. ; ... ; Planinić, Mirko ; ... ; Poljak, Nikola ; ... ; Zuo, J.X.
engleski
∆φ∆η Correlations in Central Au+Au Collisions at √sN N = 200 GeV
We report charged particle pair correlation analyses in the space of Δϕ (azimuth) and Δη (pseudorapidity), for central Au+Au collisions at sNN‾‾‾‾√=200 GeV in the STAR detector. The analysis involves unlike-sign charged pairs and like-sign charged pairs, which are transformed into charge-dependent (CD) signals and charge- independent (CI) signals. We present detailed parametrizations of the data. A model featuring dense gluonic hot spots as first proposed by Van Hove predicts that the observables under investigation would have sensitivity to such a substructure should it occur, and the model also motivates selection of transverse momenta in the range 0.8<pt<2.0 GeV/c. Both CD and CI correlations of high statistical significance are observed, and possible interpretations are discussed.
correlation; central; STAR
STAR Collaboration.
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Podaci o izdanju
75
2007.
34901-1-34901-18
objavljeno
0556-2813
10.1103/PhysRevC.75.034901