Conformal symmetry on the light cone and nonleading twist distribution amplitudes of massive vector meson

Abstract

A complete set of asymptotic three particle light cone distribution amplitudes of twist 3 and 4 for a transversely polarized massive vector meson built out of massless current quarks is constructed. The method used is based on a modified conformal projectors technique which allows to handle kinematical corrections due to a finite hadron mass. Consequences of our finding for the ρ-meson hard diffractive electroproduction and γρπform factor are discussed. Our results may imply a breakdown of OPE for some exclusive processes beyond the leading twist level.

Latex, 12 pages, no figures

References in corpus (3)

• Nonforward Parton Distributions
• Hard diffractive electroproduction, transverse momentum distribution and QCD vacuum structure
• Distribution of valence quarks and light-cone QCD sum rules

Cited by in corpus (3)

• Polarizations in B -> VV decays
• Twist-3 light-cone distribution amplitudes of the scalar mesons within the QCD sum rules and their application to the $B\to S$ transition form factors
• Subleading collinear operators and their matrix elements