Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Continuous evolution of electromagnetic field in heavy-ion collisions   In heavy-ion collisions the electromagnetic field exists before the hot
nuclear matter emergence. Requiring the field continuity we compute it in the
central rapidity region by taking into account the electromagnetic response of
the Quark Gluon Plasma. We show that the electromagnetic field is nearly
time-independent from about 1~fm/c after the collision until the freezeout.

9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat