Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gluon Mass in Landau Gauge QCD   The interpretation of the Landau gauge lattice gluon propagator as a massive
type bosonic propagator is investigated for i) an infrared constant gluon mass;
ii) an ultraviolet constant gluon mass; iii) a momentum dependent mass. We find
that the infrared data can be associated with a massive propagator with a
constant gluon mass of 651(12) MeV, but the ultraviolet lattice data is not
compatible this type of propagator. The scenario of a momentum dependent gluon
mass gives a decreasing mass with the momentum, starting from a value of $\sim
630$ MeV in the infrared region and suggesting a $q^2 \ln q^2$ dependence for
momenta above 1 GeV.

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The categories of this paper are: mtrl-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: econ
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The categories of this paper are: ao-sci
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-ex
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The categories of this paper are: gr-qc
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The categories of this paper are: nucl-th
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The categories of this paper are: patt-sol
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The categories of this paper are: acc-phys
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The categories of this paper are: chao-dyn
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The categories of this paper are: eess
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The categories of this paper are: bayes-an