Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Beam-energy and system-size dependence of the CME   The energy dependence of the local ${\cal P}$ and ${\cal CP}$ violation in
Au+Au and Cu+Cu collisions in a large energy range is estimated within a simple
phenomenological model. It is expected that at LHC the Chiral Magnetic effect
(CME) will be about 20 times weaker than at RHIC. In the lower energy range
this effect should vanish sharply at energy somewhere above the top SPS one. To
elucidate CME background effects a transport model including magnetic field
evolution is put forward.

13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th