What Do the Scaling Characteristics of Elliptic Flow Reveal About the Properties of the Matter at RHIC?
Journal Article
·
· AIP Conference Proceedings
- Department of Chemistry, Stony Brook University, NY 11794-3400 (United States)
Elliptic flow ({nu}2) measurements for Cu+Cu and Au+Au collisions at {radical}(s{sub NN}) = 200 GeV are used to probe several hydrodynamic scaling predictions. Eccentricity scaling of {nu}2 is observed for these data, suggesting essentially complete thermalization of the high energy density matter produced in these collisions. An estimate of the speed of sound is also obtained from the eccentricity scaled elliptic flow. The predicted mass scaling is observed for particles with transverse kinetic energy KET up to {approx} 1 GeV. For higher KET values, quark number scaling, compatible with partonic degrees of freedom, is observed.
- OSTI ID:
- 20895101
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 870; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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