Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The QCD phase transition at high temperature and low density   We study the thermal properties of QCD in the presence of a small quark
chemical potential $\mu$. Derivatives of the phase transition point with
respect to $\mu$ are computed at $\mu=0$ for 2 and 3 flavors of p-4 improved
staggered fermions on a $16^3\times4$ lattice. Moreover we contrast the case of
isoscalar and isovector chemical potentials, quantify the effect of $\mu\not=0$
on the equation of state, and comment on the screening effect by dynamical
quarks and the complex phase of the fermion determinant in QCD with
$\mu\not=0$.

27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
19
The categories of this paper are: eess
2
The categories of this paper are: math
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ