Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Deconfinement and degrees of freedom in $pp$ and $A-A$ collisions at LHC
  energies   We present the extraction of the temperature by analyzing the charged
particle transverse momentum spectra in lead-lead (Pb-Pb) and proton-proton
(${\bf pp}$) collisions at LHC energies from the ALICE Collaboration using the
Color String Percolation Model (CSPM). From the measured energy density ${\bm
\varepsilon}$ and the temperature T the dimensionless quantity ${\bm
\varepsilon/}T^{4}$ is obtained to get the degrees of freedom (DOF), ${\bm
\varepsilon}/T^{4}$ = DOF ${ \pi^{2}}$/30.
  We observe for the first time a two-step behavior in the increase of DOF,
characteristic of deconfinement, above the hadronization temperature at
temperature $\sim$ 210 MeV for both Pb-Pb and ${\bf pp}$ collisions and a
sudden increase to the ideal gas value of $\sim $ 47 corresponding to three
quark flavors in the case of Pb-Pb collisions.

2
The categories of this paper are: math
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int