Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Production at High $p_T$ in Central Au+Au and $p+p$ collisions at
  $\sqrt{s_{_{NN}}} = 200$ GeV in STAR   he $\rho^0$ production at high-$p_T$ (5.0 $\leq p_T \leq$ 10.0 GeV/$c$)
measured in minimum bias $p+p$, Au+Au and central Au+Au collisions in the STAR
detector are presented. The $\rho^0/\pi$ ratio measured in $p+p$ is compared to
PYTHIA calculations as a test of perturbative quantum chromodynamics (pQCD)
that describes reasonably well particle production from hard processes. The
$\rho^0$ nuclear modification factor are also presented. In $p+p$ collisions,
charged pions and (anti-)protons are measured in the range 5.0 $\leq p_T \leq$
15.0 GeV/$c$ and the anti-particle to particle ratio and the baryon to meson
ratios of these hadrons are discussed.

11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph