Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dilatons for Dense Hadronic Matter   The idea that the explicit breaking of scale invariance by the trace anomaly
of QCD can be rephrased as a spontaneous breaking has been recently exploited
to capture the low-energy strong interaction dynamics of dense (and also hot)
matter in terms of two dilaton fields, the "soft" (chi_s) and the "hard"
(chi_h) fields, in the frame work of the hidden local gauge symmetry. In the
Freund-Nambu model, the spontaneous symmetry breaking of scale symmetry is
induced by an explicitly breaking term, while the spontaneous symmetry breaking
is possible in the flat potential model which is scale symmetric. We discuss
the interplay of the soft and hard dilatons using the spontaneously broken
scale symmetry schemes and uncover a novel structure of dense matter hitherto
unexplored.

9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an