Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magnetic catalysis of a finite size pion condensate   We study the Bose-Einstein condensation of a finite size pion gas subject to
the influence of a magnetic field. We find the expressions for the critical
chemical potential and temperature for the onset of condensation. We show that
for values of the external magnetic flux larger than the elemental flux, the
critical temperature is larger than the one obtained by considering only finite
size effects. We use experimentally reported values of pion source sizes and
multiplicities at LHC energies to show that if the magnetic flux, produced
initially in peripheral heavy-ion collision, is at least partially preserved up
to the hadronic phase, the combined finite size and magnetic field effects give
rise to a critical temperature above the kinetic freeze-out temperature. We
discuss the implications for the evolution of the pion system created in
relativistic heavy-ion collisions.

25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph