Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fermion Self-Energy during Inflation   I report on work done with Tomislav Prokopec (Heidelberg, CERN). We computed
the one loop self-energy of a massless fermion during inflation. When the
fermion is free it experiences only a small amount of inflationary particle
production owing to the conformal invariance of its classical action. However,
when the fermion is Yukawa coupled to a massless, minimally coupled scalar,
there is copious production of fermions. In a more complicated model this
effect might generate baryon asymmetry during inflation.

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The categories of this paper are: gr-qc
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The categories of this paper are: nlin
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The categories of this paper are: q-fin
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The categories of this paper are: chem-ph
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The categories of this paper are: q-alg
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The categories of this paper are: mtrl-th
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The categories of this paper are: cs
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The categories of this paper are: math
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The categories of this paper are: ao-sci
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The categories of this paper are: plasm-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: cond-mat
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The categories of this paper are: econ
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The categories of this paper are: hep-ex
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The categories of this paper are: nucl-ex
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The categories of this paper are: dg-ga