Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Soft Pion Emission from the Nucleon Induced by Twist-2 Light-Cone
  Operators   We compute the matrix elements for pion emission from the nucleon induced by
twist-two light-cone operators in the kinematics where the pion is close to
threshold. It is shown that the results of heavy baryon ChPT are in agreement
with the results from the soft-pion theorem approach. Therefore the amplitude
of soft-pion emission is directly related to the generalized parton
distributions in the nucleon.

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The categories of this paper are: econ
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The categories of this paper are: chao-dyn
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The categories of this paper are: alg-geom
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The categories of this paper are: stat
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The categories of this paper are: patt-sol
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The categories of this paper are: math-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: atom-ph
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The categories of this paper are: physics
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The categories of this paper are: cond-mat
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The categories of this paper are: funct-an
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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: eess
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The categories of this paper are: ao-sci
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The categories of this paper are: quant-ph