On the odderon intercept in QCD

Abstract

The odderon singularity is studied in perturbative QCD in the framework of the Bartels-Kwieciński-Praszalowicz (BKP) equation. Arguments for the odderon intercept being exactly equal to unity are given. Besides, a variational method based on a complete system of one-gluon functions is presented. For the odderon, the highest intercept calculated by this method is $1-(N_c{\alpha }_s/\pi )0.45$. Comparison to other calculations is shown.

Comments: 9 pages in LaTeX; presented by N. Armesto at the Madrid Workshop on low x Physics (Miraflores de la Sierra, Spain, June 18th-21st 1997)