Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Numerical study of QCD phase diagram at high temperature and density by
  a histogram method   We study the QCD phase structure at high temperature and density adopting a
histogram method. Because the quark determinant is complex at finite density,
the Monte-Carlo method cannot be applied directly. We use a reweighting method
and try to solve the problems which arise in the reweighting method, i.e. the
sign problem and the overlap problem. We discuss the chemical potential
dependence of the probability distribution function in the heavy quark mass
region and examine the applicability of the approach in the light quark region.

15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess