Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Estimation of electric conductivity of the quark gluon plasma via
  asymmetric heavy-ion collisions   We show that in asymmetric heavy-ion collisions, especially off-central Cu+Au
collisions, a sizable strength of electric field directed from Au nucleus to Cu
nucleus is generated in the overlapping region, because of the difference in
the number of electric charges between the two nuclei. This electric field
would induce an electric current in the matter created after the collision,
which result in a dipole deformation of the charge distribution. The directed
flow parameters $v_1^{\pm}$ of charged particles turn out to be sensitive to
the charge dipole and provide us with information about electric conductivity
of the quark gluon plasma.

20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol