Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Thermal Production of Charmonia at the LHC Energies   This work studies the thermal production of $J/\psi$ and $\psi(2S)$ with
Boltzmann transport model in the Quark Gluon Plasma (QGP) produced in
$\sqrt{s_{NN}}=5.02$ TeV Pb-Pb collisions. $J/\psi$ nuclear modification
factors are studied in details with the mechanisms of primordial production and
the recombination of charm and anti-charm quarks in the thermal medium.
$\psi(2S)$ binding energy is much smaller in the hot medium compared with the
ground state, so $\psi(2S)$ with middle and low $p_T$ can be mainly thermally
regenerated in the later stage of QGP expansions which enables $\psi(2S)$
inherit larger collective flows from the bulk medium. We quantitatively study
both nuclear modification factors of $J/\psi$ and $\psi(2S)$ in different
centralities and transverse momentum bins in $\sqrt{s_{NN}}=5.02$ TeV Pb-Pb
collisions.

35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn