  We introduce higher order mean curvatures of screen almost conformal (SAC)
half-lightlike submanifolds of indefinite contact manifolds, admitting a
semi-symmetric non-metric connection, and use them to generalize some known
results of [6]. Also, we derive a new set of integration formulae via the
divergence of some special vector fields tangent to this submanifold. Several
examples are also included to illustrate the main concepts.
