Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Collective flow in ultrarelativistic $^3$He-Au collisions   The triangular flow in ultrarelativistic $^3$He-Au collisions at RHIC
energies is enhanced due to the triangular arrangement of the nucleon
configurations in $^3$He. We study the fireball eccentricities in the Glauber
Monte Carlo model and find that since the configurations of the projectile
$^3$He are elongated triangles, the created fireball has a large ellipticity
and a smaller triangularity. The dependence of the triangularity on centrality
is weak, so it cannot be extracted from the centrality dependence of the
triangular flow $v_3$, as it is dominated by the centrality dependence of the
hydrodynamic response. We propose to look at the centrality dependence of the
ratio $v_n\{4\}/v_n\{2\}$, where the uncertainties from the hydrodynamic
response cancel, and show that the basic signature of the geometry-driven
collective flow is the raise of the ratio $v_3\{4\}/v_3\{2\}$ with the number
of participant nucleons for centralities less than 10%.

17
The categories of this paper are: q-fin
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The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
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The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
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The categories of this paper are: hep-th
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The categories of this paper are: nlin
30
The categories of this paper are: q-alg