Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chiral transition and deconfinement in QCD   The study of QCD with two light dynamical fermions is of fundamental
importance to understand the mechanism of color confinement. We present results
of a numerical investigation on the order of the chiral phase transition with
$N_f = 2$ by use of a novel strategy in finite size scaling analysis. We
compare the critical behaviour of the specific heat, of the chiral
susceptibility and of the equation of state with the possible critical
behaviours. A second order transition in the O(4) and O(2) universality classes
are excluded by our data and substantial evidence emerges for a first order
transition. Like in most of previous works we have used the standard staggered
action with $L_t = 4$: possible scaling violations and the need for further
studies are discussed.

20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex