The local-density approximation to the delta-hole model is investigated. Features learned from work on the momentum-space approach to the pion-nucleus optical potential are incorporated into the model. In the limit of no delta-nucleus interaction, we are able to examine the reliability of the approximations of the model by comparing it to a model-exact momentum-space calculation. The model provides a numerically efficient approach to studying delta dynamics in the nucleus.

• Received 16 February 1988

DOI:https://doi.org/10.1103/PhysRevC.37.2651