Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Using the $\phi$-meson elliptic flow to map the strength of partonic
  interaction   A compilation of recently measured STAR data for elliptic flow ($v_{2}$) of
$\phi$ mesons in RHIC Beam Energy Scan program and comparison with a multiphase
transport model (AMPT) has been presented. The experimental data at
$\sqrt{s_{NN}}$ $\geq$ 19.6 GeV agrees well with string melting version of the
AMPT model. The model includes partonic interactions and quark coalescence as a
mechanism of hadronization. This indicates that there is a substantial
contribution to collectivity from partonic interactions at $\sqrt{s_{NN}}$
$\geq$ 19.6 GeV. The measured $\phi$-meson $v_{2}$ at $\sqrt{s_{NN}}$ = 7.7 and
11.5 GeV are found to be smaller than those obtained from AMPT model without
partonic interactions. This indicates negligible contribution of partonic
collectivity to the observed $\phi$-meson $v_{2}$ at $\sqrt{s_{NN}}$ $\leq$
11.5 GeV.

33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
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The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex