Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effective Lagrangians for QCD: Deconfinement and Chiral Symmetry
  Restoration   Effective Lagrangians for Quantum Chromodynamics (QCD) especially suited for
understanding deconfinement and chiral symmetry restoration at nonzero
temperature and matter density are reviewed. These effective theories allow one
to study generic properties of phase transitions using non-order parameter
fields without loosing the information encoded in the true order parameter.
{}For the pure gauge theory we demonstrate that, near the deconfining phase
transition, the center group symmetry is naturally linked to the conformal
anomaly. Another relevant outcome is that when the theory contains also quarks
we can explain the intertwining of chiral symmetry restoration and
deconfinement for QCD with matter fields either in the fundamental or in the
adjoint representation of the gauge group. As a test of our general approach we
show our results to be applicable also at non zero baryon chemical potential.
We also predict new testable substructures to be present in the phase diagram
of quarks in the adjoint representation of the gauge group. Here we provide
some new insights on the large $N$ limit of gauge theories by investigating the
hadronic world. We propose that the world of infinite $N$ should already be
well described when N=6 for QCD with two and three light flavors. Finally, we
suggest possible future applications of our results for heavy ions collisions.

20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc