Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Duality and Chiral Restoration from Low-Mass Dileptons at the CERN-SpS   We review recent theoretical progress in low-mass dilepton production at
CERN-SpS energies. Various hadronic approaches to calculate the vector
correlator in hot/dense hadronic matter are discussed and confronted with each
other. Possible consequences for the nature of chiral restoration are
indicated.

25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex