Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chiral asymmetry and axial anomaly in magnetized relativistic matter   The induced axial current and the chiral anomaly are studied in the normal
phase of magnetized relativistic matter. A special attention is paid to the
role of the chiral shift parameter Delta, leading to a relative shift of the
longitudinal momenta in the dispersion relations of opposite chirality
fermions. In the Nambu-Jona-Lasinio model, it is shown directly from the form
of the gap equation that Delta necessarily exists in the normal phase in a
magnetic field. By making use of the gauge invariant point-splitting
regularization, we then show that the presence of Delta essentially modifies
the form of the axial current, but does not affect the conventional axial
anomaly relation. By recalculating the axial current with the proper-time
regularization, we conclude that the result is robust with respect to a
specific regularization scheme used.

22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys