  Results are presented for the 500 GeV/c pion production asymmetry and
polarization of the Lambda_c (anti-Lanbda_c) charmed baryon from Fermilab
experiment E791. An analysis of the decay to the p anti-K pi final state is
described. Resonant sub-channel fractions and phases are given and possible
resonant effects in the low mass p anti-K system discussed. Significant decay
to Lambda_c --> Delta++ K- establishes for the first time the importance of a W
exchange mechanism in charmed baryon decay.
