Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phase structure of lattice QCD with two flavors of Wilson quarks at
  finite temperature and chemical potential   We present results for phase structure of lattice QCD with two degenerate
flavors ($N_f=2$) of Wilson quarks at finite temperature $T$ and small baryon
chemical potential $\mu_B$. Using the imaginary chemical potential for which
the fermion determinant is positive, we perform simulations at points where the
ratios of pseudo-scalar meson mass to the vector meson mass $m_\pi/m_\rho$ are
between $0.943(3)$ and $0.899(4)$ as well as in the quenched limit. By analytic
continuation to real quark chemical potential $\mu$, we obtain the transition
temperature as a function of small $\mu_B$. We attempt to determine the nature
of transition at imaginary chemical potential by histogram, MC history, and
finite size scaling. In the infinite heavy quark limit, the transition is of
first order. At intermediate values of quark mass $m_q$ corresponding to the
ratio of $m_\pi/m_\rho$ in the range from $0.943(3)$ to $0.899(4)$ at
$a\mu_I=0.24$, the MC simulations show absence of phase transition.

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The categories of this paper are: stat
29
The categories of this paper are: funct-an
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The categories of this paper are: econ
21
The categories of this paper are: adap-org
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ex
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The categories of this paper are: solv-int
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The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
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The categories of this paper are: math
30
The categories of this paper are: q-alg
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The categories of this paper are: nucl-th
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The categories of this paper are: gr-qc
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The categories of this paper are: acc-phys
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The categories of this paper are: chem-ph