Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Gluon Propagator at High Temperature: Screening, Improvement and
  Non-Zero Momenta   We study the gluon propagator and the singlet potential in Landau gauge in
the deconfined phase of SU(2) lattice gauge theory, using both the standard
Wilson action and a tree-level Symanzik improved action. From the long-distance
behavior of correlation functions of temporal and spatial components of the
gauge fields we extract electric (m_e) and magnetic (m_m) screening masses. For
the magnetic mass we find m_m(T) = 0.456(6) g^2(T) T. The electric mass can be
described by a next-to leading order ansatz, obtained from one loop resummed
perturbation theory. However, the best description is given by m_e(T) =
\sqrt{1.70(2)} g(T) T. The electric screening mass thus is different from its
lowest order perturbative prediction even for temperatures as high as T \sim
10^4 T_c.

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The categories of this paper are: alg-geom
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The categories of this paper are: solv-int
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The categories of this paper are: econ
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-th
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The categories of this paper are: q-bio
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The categories of this paper are: funct-an
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The categories of this paper are: q-alg
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The categories of this paper are: chem-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: acc-phys
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The categories of this paper are: math-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: mtrl-th
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The categories of this paper are: adap-org
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The categories of this paper are: atom-ph