Kerr spinning particle, strings, and superparticle models

A combined model of the Ken spinning particle and superparticle is considered. The structure of Ken geometry is presented in a complex form as being created by a complex source. A natural supergeneralization of this construction is obtained corresponding to a complex "supersource." Performing a supershift to the Ken and Kerr-Sen solutions we obtain metrics of supergravity black holes with a nonlinear realization of broken supersymmetry.