Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Determination of the endpoint of the first order deconfiniement phase
  transition in the heavy quark region of QCD   We study the endpoint of the first order deconfinement phase transition of 2
and 2+1 flavor QCD in the heavy quark region. We perform simulations of
quenched QCD and apply the reweighting method to study the heavy quark region.
The quark determinant for the reweighting is evaluated by a hopping parameter
expansion. To reduce the overlap problem, we introduce an external source term
of the Polyakov loop in the simulation. We study the location of critical point
at which the first order phase transition changes to crossover by investigating
the histogram of the Polyakov loop and applying the finite-size scaling
analysis. We estimate the truncation error of the hopping parameter expansion,
and discuss the lattice spacing dependence and the spatial volume dependence in
the result of the critical point.

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The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
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
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
19
The categories of this paper are: eess