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

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

1997-04-08

arxiv.org/abs/hep-ph/9704265v1

Phys.Rev. D57 (1998) 1680-1686

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex, 12 pages, no figures

Scientific paper

10.1103/PhysRevD.57.1680

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 \rho -meson hard diffractive electroproduction and \gamma \rho \pi form factor are discussed. Our results may imply a breakdown of OPE for some exclusive processes beyond the leading twist level.

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