Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Finite-t and target mass corrections in off-forward hard reactions   We describe a systematic approach [1] to the calculation of kinematic
corrections ~ t/Q^2, m^2/Q^2 in hard exclusive processes which involve momentum
transfer from the initial to the final hadron state. As an example, the
complete expression is derived for the time-ordered product of two
electromagnetic currents that includes all kinematic corrections due to the
quark distribution to twist-four accuracy. The results are applicable e.g. to
the studies of deeply-virtual Compton scattering.

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The categories of this paper are: q-bio
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The categories of this paper are: q-alg
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-lat
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The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
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The categories of this paper are: quant-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: astro-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: eess
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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: mtrl-th
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The categories of this paper are: ao-sci