Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dilepton and $\phi$ meson production in elementary and nuclear
  collisions at the NICA fixed target experiment   We argue that the NICA fixed target experiment will be able to provide very
important new experimental data on dilepton and $\phi$ meson production in the
basically undiscovered energy domain between the SIS and SPS energies.
Experimental information about elementary cross sections in this energy region
is an essential ingredient of models of nuclear collisions in the same energy
range.

23
The categories of this paper are: solv-int
2
The categories of this paper are: math
1
The categories of this paper are: cs
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat