Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mid-rapidity $\pi^\pm$, $K^\pm$, and $\bar{p}$ spectra and particle
  ratios from STAR   Results are presented on $\pi^\pm$, $K^\pm$, and $\bar{p}$ transverse mass
spectra and particle multiplicity ratios at mid-rapidity in Au+Au collisions at
$\sqrt{s_{_{\rm NN}}}$=130 and 200 GeV and in p+p collisions at $\sqrt{s}$=200
GeV. Comparisons are made to results from lower energies. The bulk properties
of the collision inferred from these results are discussed.

25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ