Reconstruction of non-forward evolution kernels

A. V. Belitsky, D. Müller, A. Freund

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

We develop a framework for the reconstruction of the non-forward kernels which govern the evolution of twist-two distribution amplitudes and off-forward parton distributions beyond leading order. It is based on the knowledge of the special conformal symmetry breaking part induced by the one-loop anomaly and conformal terms generated by forward next-to-leading order splitting functions, and thus avoids an explicit two-loop calculation. We demonstrate the formalism by applying it to the chiral odd and flavour singlet parity odd sectors.

Original languageEnglish (US)
Pages (from-to)270-279
Number of pages10
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume461
Issue number3
DOIs
StatePublished - Jan 1 1999
Externally publishedYes

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Keywords

  • Conformal constraints
  • Evolution equation
  • Two-loop exclusive kernels

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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