  Exotic hybrid mesons H, with quantum numbers J^{PC}= 1^{- +} may be copiously
produced in the hard exclusive processes gamma^*(Q^2) gamma -> H and
gamma^*(Q^2) P(p) -> H P(p') because they have a leading twist distribution
amplitude with a sizable coupling constant f_H, which may be estimated through
QCD sum rules. The reaction rates scale in the same way as the corresponding
rates for usual mesons.
