Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: NLO thermal dilepton rate at non-zero momentum   The vector channel spectral function and the dilepton production rate from a
QCD plasma at a temperature above a few hundred MeV are evaluated up to
next-to-leading order (NLO) including their dependence on a non-zero momentum
with respect to the heat bath. The invariant mass of the virtual photon is
taken to be in the range K^2 ~ (pi T)^2 ~ (1 GeV)^2, generalizing previous NLO
results valid for K^2 >> (pi T)^2. In the opposite regime 0 < K^2 << (pi T)^2
the loop expansion breaks down, but agrees nevertheless in order of magnitude
with a previous result obtained through resummations. Ways to test the vector
spectral function through comparisons with imaginary-time correlators measured
on the lattice are discussed.

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The categories of this paper are: supr-con
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The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: solv-int
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The categories of this paper are: funct-an
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
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The categories of this paper are: cond-mat
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The categories of this paper are: q-bio
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The categories of this paper are: astro-ph
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The categories of this paper are: math
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The categories of this paper are: atom-ph
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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: q-alg
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The categories of this paper are: mtrl-th