1993 PhD at the University of Dortmund (supervisor Prof. E. Reya)
1994 - 1996 Research Associate at the Rutherford Appleton Laboratory, Didcot, England
1997 - 1998 Fellow in Theory Division at CERN, Geneva, Switzerland
1998 Habilitation at the University of Dortmund
1999 - 2000 Research Associate at the C.N. Yang Institute for Theoretical Physics at Stony Brook University, Stony Brook, U.S.A.
2000 - 2003 RIKEN-Fellow at RIKEN BNL Research Center, Brookhaven National Laboratory (BNL), Upton, U.S.A.
2003 - 2005 Associate Physicist in Nuclear Theory Group at BNL and "RHIC Physics Fellow" at RIKEN BNL Research Center
2005 - 2009 Tenured Senior Scientist in Nuclear Theory Group at BNL
2006 - 2009 Adjunct Professor at Stony Brook University
2009 - present: Full Professor for Theoretical Nuclear and Particle Physics at Institute for Theoretical Physics, Tübingen University, Germany
"Friedrich Wilhelm Bessel-Award" of the Humboldt Foundation, Germany (2007)
Fellow of the American Physical Society (2009)
Strong interactions, (perturbative) Quantum Chromodynamics
Structure of the nucleon