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Article
Scaling properties of azimuthal anisotropy in Au plus Au and Cu plus Cu collisions at root s(NN)=200 GeV
Physical Review Letters
Document Type
Article
Disciplines
Publication Version
Published Version
Publication Date
4-1-2007
DOI
10.1103/PhysRevLett.98.162301
Abstract
Differential measurements of elliptic flow (v(2)) for Au+Au and Cu+Cu collisions at root s(NN)=200 GeV are used to test and validate predictions from perfect fluid hydrodynamics for scaling of v(2) with eccentricity, system size, and transverse kinetic energy (KET). For KET equivalent to m(T)-m up to similar to 1 GeV the scaling is compatible with hydrodynamic expansion of a thermalized fluid. For large values of KET mesons and baryons scale separately. Quark number scaling reveals a universal scaling of v(2) for both mesons and baryons over the full KET range for Au+Au. For Au+Au and Cu+Cu the scaling is more pronounced in terms of KET, rather than transverse momentum.
Copyright Owner
American Physical Society
Copyright Date
2007
Language
en
File Format
application/pdf
Citation Information
Andrew Adare, Sergey Belikov, Paul Constantin, Nathan C. Grau, et al.. "Scaling properties of azimuthal anisotropy in Au plus Au and Cu plus Cu collisions at root s(NN)=200 GeV" Physical Review Letters Vol. 98 Iss. 16 (2007) p. 162301 Available at: http://works.bepress.com/craig-ogilvie/213/
This article is published as Adare, A., S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, H. Al-Bataineh, J. Alexander et al. "Scaling properties of azimuthal anisotropy in Au+ Au and Cu+ Cu collisions at s NN= 200 GeV." Physical review letters 98, no. 16 (2007): 162301. DOI: 10.1103/PhysRevLett.98.162301. Posted with permission.