  We study heavy baryons with exotic flavor quantum numbers formed by a heavy
meson and a nucleon (DbarN and BN) with positive parity. One pion exchange
interaction, providing a tensor force, dominates as a long range force to bind
the DbarN and BN ystems. In the heavy quark mass limit, pseudoscalar meson and
vector meson are degenerate and the binding mechanism by the tensor force
analogous to that in the nuclear systems becomes important. As a result, we
obtain the DbarN and BN resonant states in the J^P=1/2^+, 3/2^+ and 5/2^+
channels with I=0.
