Geboren 1959 in Verdun (Frankreich); PhD 1987, University of Wisconsin (Madison, USA); Assistant Professor, Associate Professor und Professor, Columbia University (USA), 1987-2002; Spokesperson of the ZEUS Experiment at DESY, 1997-1999; Director, Nevis Laboratory of the Columbia University, 1999-2002; since 2002: Scientific Member of the MPG and Director at the MPI for Physics.