Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Influence of the inverse magnetic catalysis and the vector interaction
  in the location of the critical end point   The effect of a strong magnetic field on the location of the critical end
point (CEP) in the QCD phase diagram is discussed under different scenarios. In
particular, we consider the contribution of the vector interaction and take
into account the inverse magnetic catalysis obtained in lattice QCD
calculations at zero chemical potential. The discussion is realized within the
(2+1) Polyakov--Nambu--Jona-Lasinio model. It is shown that the vector
interaction and the magnetic field have opposite competing effects, and that
the winning effect depends strongly on the intensity of the magnetic field. The
inverse magnetic catalysis at zero chemical potential has two distinct effects
for magnetic fields above $\gtrsim 0.3$ GeV$^2$: it shifts the CEP to lower
chemical potentials, hinders the increase of the CEP temperature and prevents a
too large increase of the baryonic density at the CEP. For fields $eB<0.1$
GeV$^2$ the competing effects between the vector contribution and the magnetic
field can move the CEP to regions of temperature and density in the phase
diagram that could be more easily accessible to experiments.

27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc