  Recently it has been pointed out that in the two-baryon $N\Delta$ or
$\Delta\Delta$ system the width of the state is greatly diminished due to the
relative kinetic energy of the two baryons, since the internal energy of the
particles, available for pionic decay, is smaller. For nonzero orbital angular
momenta this effect becomes state dependent. Also the real part of the
$N\Delta$ energy can get contribution from the centrifugal barrier leading to
rotational series of diffuse states. Obviously, these states may have an
interpretation as isospin one dibaryons. Direct and explicit calculations for
this are presented with some details of the coupled state wave functions
displayed. With finite expectation values of these repulsive effects it may be
possible to define state dependent effective thresholds for $N\Delta$ states
and these, in turn, can show resonant like behavior.
