Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Photon measurements in forward rapidity in heavy-ion collisions   Contribution of a preshower photon multiplicity detector to the physics of
ultra-relativistic nuclear collisions is reviewed and future possibilities at
RHIC and LHC are discussed

23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
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