Born 1951 in Würzburg. Study of Physics at Würzburg University, Doctorate 1979. Habilitation for Theoretical Physics, Univ. Hamburg 1989. Scientific Associate at CERN, Genva (1989 - 1990). Wissenschaftl. Mitarbeiter at the MPI für Physik, München (1990-1993). Professor for Theoretical Physics at the University of Karlsruhe (1993-2002). Director at the MPI für Physik and Scientific Member of the MPG (since 2002).