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Hard exclusive electroproduction of a pion in the backward region

J. P. Lansberg·B. Pire·L. Szymanowski
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Abstract

We study the scaling regime of pion electroproduction in the backward region, eN->e'N'pi. We compute the leading-twist amplitude in the kinematical region, where it factorises into a short-distance matrix element and long-distance dominated nucleon Distribution Amplitudes and nucleon to pion Transition Distribution Amplitudes. Using the chiral limit of the latter, we obtain a first estimate of the cross section, which may be experimentally studied at JLab or Hermes.

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J. P. Lansberg, B. Pire, L. Szymanowski. 2007-11-09. Hard exclusive electroproduction of a pion in the backward region. https://doi.org/10.1103/physrevd.75.074004%2010.1103%2Fphysrevd.77.019902

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