Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Pions in the nuclear medium   We discuss various aspects of pion physics in the nuclear medium. We first
study s-wave pion-nucleus interaction in connection with chiral symmetry
restoration and quark condensate in the nuclear medium. We then adress the
question of p-wave pion-nucleus interaction and collective pionic modes in
nuclei and draw the consequences for in medium $\pi\pi$ correlations especially
in the scalar-isoscalar channel. We finally discuss the modification of the rho
meson mass spectrum at finite density and/or temperature in connection with
relativistic heavy ion collisions.

10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci