Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Energy scan by $\phi$ mesons and threshold energy for the
  confinement-deconfinement phase transition   We argue that the ratio of $\phi$ mesons multiplicity over cube of the mean
$p_T$ is proportional to the degeneracy of the medium produced in
ultra-relativistic heavy ion collisions. The ratio extracted from the existing
$\phi$ meson data in the energy range $\sqrt{s}$=6.3-200 GeV, indicate that
beyond a threshold energy $\sqrt{s}_{th}=15.74\pm 8.10$ GeV, the medium crosses
over from a confined phase to a deconfined phase.

24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ