Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Screening of mass singularities and finite soft-photon production rate
  in hot QCD   The production rate of a soft photon from a hot quark-gluon plasma is
computed to leading order at logarithmic accuracy. The canonical
hard-thermal-loop resummation scheme leads to logarithmically divergent
production rate due to mass singularities. We show that these mass
singularities are screened by employing the effective hard-quark propagator,
which is obtained through resummation of one-loop self-energy part in a
self-consistent manner. The damping-rate part of the effective hard-quark
propagator, rather than the thermal-mass part, plays the dominant role of
screening mass singularities. Diagrams including photon--(hard-)quark vertex
corrections also yield leading contribution to the production rate.

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The categories of this paper are: ao-sci
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The categories of this paper are: cs
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The categories of this paper are: stat
25
The categories of this paper are: patt-sol
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The categories of this paper are: nucl-ex
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: math
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: astro-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: econ
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The categories of this paper are: eess
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The categories of this paper are: hep-ph