Siegbert Hagmann

• Siegbert is no longer with KSU. He is now at
  GSI in Darmstadt.

• "Simultaneous Projectile-Target Ionization: A Novel Approach to (e, 2e) Experiments on Ions",
  H. Kollmus, R. Moshammer, R. E. Olson, S. Hagmann, M. Schulz, and J. Ullrich,
  Phys. Rev. Lett. 88, 103202 (2002)
• "Three-Body Coulomb Problem Probed by Mapping the Bethe Surface in Ionizing Ion-Atom Collisions",
  R. Moshammer, A. Perumal, M. Schulz, V. D. Rodríguez, H. Kollmus, R. Mann, S. Hagmann, and J. Ullrich.
  Phys. Rev. Lett. 87, 223201 (2001)
• "Dynamics of the fragmentation of D₂ by fast protons and slow highly charged Xe²⁶⁺",
  I. Ali, R. D. DuBois, C. L. Cocke, S. Hagmann, C. R. Feeler, and R. E. Olson,
  Phys. Rev. A 64, 022712 (2001)
• "Near-Threshold Photoionization of Hydrogenlike Uranium Studied in Ion-Atom Collisions via the Time-Reversed Process,"
  Th. Stohlker, X. Ma, T. Ludziejewski, H. F. Beyer, F. Bosch, O. Brinzanescu, R. W. Dunford, J. Eichler, S. Hagmann, A. Ichihara, C. Kozhuharov, A. Kramer, D. Liesen, P. H. Mokler, Z. Stachura, P. Swiat, and A. Warczak
  Phys. Rev. Letters 86, 983 (2001).
• "Correlated Three-Electron Continuum States in Triple Ionization by Fast Heavy-Ion Impact,"
  M. Schulz, R. Moshammer, W. Schmitt, H. Kollmus, R. Mann, S. Hagmann, R. E. Olson, and J. Ullrich
  Phys. Rev. A 61, 022703-1 (2000).
• "Electron Correlations Observed through Intensity Interferometry," M. Schulz, R. Moshammer, W. Schmitt, H. Kollmus, B. Feuerstein, R. Mann, S. Hagmann, and J. Ullrich
  Phys. Rev. Letters 84, 863 (2000).
• "Multi-hit Detector System for Complete Momentum Balance in Spectroscopy in Molecular Fragmentation Processes",
  I. Ali, R. Dörner, O. Jagutzki, S. Nüttgens, V. Mergel, L. Spielberger, Kh. Khayyat, T. Vogt, H. Bräuning, K. Ullmann, R. Moshammer, J. Ullrich, S. Hagmann, K.-O. Groeneveld, C. L. Cocke, and H. Schmidt-Böcking,
  Nucl. Instrum. and Methods B 149, 490 (1999)