{Delta}{phi} {Delta}{eta} correlations in central Au+Au collisions at {radical}{ovr s}{sub NN} = 200 GeV.
We report charged particle pair correlation analyses in the space of {Delta}{phi} (azimuth) and {Delta}{eta} (pseudorapidity), for central Au+Au collisions at {radical}s{sub NN} = 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 < p{sub T} < 2.0 GeV/c. Both CD and CI correlations of high statistical significance are observed, and possible interpretations are discussed.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); National Science Foundation (NSF)
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 965752
- Report Number(s):
- ANL-HEP-PR-09-57; PRVCAN; TRN: US0903693
- Journal Information:
- Phys. Rev. C, Vol. 75, Issue 2007; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- ENGLISH
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