Hard exclusive meson production at next-to-leading order

A. V. Belitsky, D. Müller

Research output: Contribution to journalArticle

46 Scopus citations

Abstract

We evaluate perturbative next-to-leading order corrections to the hard exclusive leptoproduction of π+ 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.

Original languageEnglish (US)
Pages (from-to)349-360
Number of pages12
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume513
Issue number3-4
DOIs
StatePublished - Aug 2 2001
Externally publishedYes

Keywords

  • Generalized parton distribution
  • Hard exclusive meson production
  • Next-to-leading order corrections

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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