Description: A generalization of the independent particle model from nuclear statics to nuclear dynamics is sought. Attention is centered on the average behavior of nuclear dynamics, as opposed to detailed behavior, such as that characteristic of shell effects in nuclear statics. In many situations, all that is needed is a model of dissipation in nuclear dynamics. Completely independent nucleons produce dissipation only when they interact with the surface of a nucleus or when they cross from one nucleus to another. The first possibility manifests itself whenever a nuclear surface deforms. Dissipation is then described by a simple 'wall formula.' The second mechanism for dissipation is relevant whenever two nuclei are moving relative to one another and are in sufficient contact that nucleons can move between them. Another simple expression, the 'window formula,' describes dissipation in this case. Neither of the two formulae has any free parameters.
Date: May 1, 1979
Creator: Robel, M.C.
Partner: UNT Libraries Government Documents Department