Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Universal scaling of the elliptic flow data at RHIC   Recent PHOBOS measurements of the excitation function for the pseudo-rapidity
dependence of elliptic flow in Au+Au collisions at RHIC, have posed a
significant theoretical challenge. Here we show that these differential
measurements, as well as the RHIC measurements on transverse momentum satisfy a
universal scaling relation predicted by the Buda-Lund model, based on exact
solutions of perfect fluid hydrodynamics. We also show that recently found
transverse kinetic energy scaling of the elliptic flow is a special case of
this universal scaling.

8
The categories of this paper are: hep-ex
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The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
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The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
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The categories of this paper are: cs
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The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
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The categories of this paper are: quant-ph
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The categories of this paper are: funct-an
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The categories of this paper are: patt-sol
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-fin