Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The QCD Critical End Point Under Strong Magnetic Fields   We use the three-flavor Nambu--Jona-Lasinio model, which includes strangeness
and quark physical masses in the mean field approximation, to investigate the
influence of strong magnetic fields on the QCD phase diagram covering the whole
$T-\mu$ plane. It is found that the size of the first order transition line
increases as the field strength increases so that a larger coexistence region
for hadronic and quark matter should be expected for strong magnetic fields.
The location of the critical end point is also affected by the presence of
magnetic fields which invariably increase the temperature value at which the
first order line terminates. On the other hand, the critical end point chemical
potential value displays a subtle oscillation around the B=0 value for magnetic
fields within the $10^{17}-10^{20} \, {\rm G}$ range. These findings may have
non trivial consequences for the physics of magnetars and heavy ion collisions.

16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg