Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anisotropic Flow Measurements of Identified Particles in the STAR
  Experiment   We report results of $v_1$ and $v_2$ for identified hadrons ($\pi^{\pm},
K^{\pm}, K_{S}^{0}, p, \phi$ and $\Lambda$) from Au+Au collisions at
$\sqrt{s_{NN}}$ = 3 GeV and $v_2$ for $\pi^{\pm}, K^{\pm}, p$ and $\bar{p}$ at
$\sqrt{s_{NN}}$ = 27 and 54.4 GeV using the STAR detector at RHIC. In Au+Au
collisions at high energies, one finds that the values of $v_2$ are all
positive and the number-of-constituent-quark (NCQ) scaling holds. On the other
hand, results from collisions at 3 GeV, the midrapidity $v_2$ is negative for
all hadrons and NCQ scaling is absent. In addition, the midrapidity $v_1$
slopes for all hadrons are found to be positive. Furthermore, the features of
negative $v_2$ and positive $v_1$ slope at 3 GeV can be reproduced by
calculations with baryonic mean-field potential in transport model. These
results imply that in 3 GeV Au+Au collisions, the medium is characterized by
baryonic interactions.

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The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: adap-org
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The categories of this paper are: cond-mat
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The categories of this paper are: comp-gas
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-lat
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The categories of this paper are: nlin
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The categories of this paper are: plasm-ph
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The categories of this paper are: eess
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The categories of this paper are: alg-geom