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arXiv · hep-ph/0105046

Hard exclusive meson production at next-to-leading order

A. V. Belitsky·D. Müller
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Abstract

We evaluate perturbative next-to-leading order corrections to the hard exclusive leptoproduction of pi+ mesons on a transversely polarized proton target. A model dependent study shows that these corrections can be large. We analyze the scale dependence and explore the Brodsky-Lepage-Mackenzie scale setting procedure. Although the predictions for the cross section suffer from theoretical uncertainties, the transverse nucleon single spin asymmetry turns out to be a rather stable observable since higher order effects approximately cancel there.

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A. V. Belitsky, D. Müller. 2001-05-16. Hard exclusive meson production at next-to-leading order. https://doi.org/10.1016/s0370-2693(01)00751-1

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