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- Publications
- Influence
Separation of recollision mechanisms in nonsequential strong field double ionization of Ar: the role of excitation tunneling.
- B. Feuerstein, R. Moshammer, +12 authors W. Sandner
- Physics, Medicine
- Physical review letters
- 9 July 2001
Vector momentum distributions of two electrons created in double ionization of Ar by 25 fs, 0.25 PW/cm(2) laser pulses at 795 nm have been measured using a "reaction microscope." At this intensity,… Expand
Few-photon multiple ionization of ne and ar by strong free-electron-laser pulses.
- R. Moshammer, Y. Jiang, +20 authors J. Ullrich
- Physics, Medicine
- Physical review letters
- 18 May 2007
Few-photon multiple ionization of Ne and Ar atoms by strong vacuum ultraviolet laser pulses from the free-electron laser at Hamburg was investigated differentially with the Heidelberg reaction… Expand
Electron-impact ionization of helium: A comprehensive experiment benchmarks theory
- Xinguo Ren, I. Bray, +7 authors J. Ullrich
- Physics
- 24 May 2011
Single ionization of helium by 70.6-eV electron impact is studied in a comprehensive experiment covering a major part of the entire collision kinematics and the full 4{pi} solid angle for the emitted… Expand
Exploring sub-femtosecond correlated dynamics with an ultra-low energy electrostatic storage ring
- C. Welsch, M. Grieser, A. Dorn, R. Moshammer, J. Ullrich
- Physics
- 3 November 2005
Whereas the three‐body Coulomb problem for single excitation and ionization was claimed to be solved in a mathematically correct way during 1999 until 2004 for electron impact on hydrogen and helium,… Expand
Projectile-charge sign dependence of four-particle dynamics in helium double ionization.
- D. Fischer, R. Moshammer, +9 authors J. Ullrich
- Physics, Medicine
- Physical review letters
- 20 June 2003
Double ionization of helium by 6 MeV proton impact has been explored in a kinematically complete experiment using a "reaction microscope." For the first time, fully differential cross sections for… Expand
Tracing multiple scattering patterns in absolute (e,2e) cross sections for H2 and He over a 4π solid angle
- Xueguang Ren, A. Senftleben, +8 authors J. Ullrich
- Physics
- 27 September 2010
Absolutely normalized (e,2e) measurements for H{sub 2} and He covering the full solid angle of one ejected electron are presented for 16 eV sum energy of both final state continuum electrons. For… Expand
Laser-assisted electron-impact ionization of atoms
- C. Hoehr, A. Dorn, B. Najjari, D. Fischer, C. Schröter, J. Ullrich
- Chemistry
- 1 October 2007
Abstract Fast, 1 keV electron–helium collisions performed in an intense ( 4 × 1 0 12 W/cm2), non-resonant laser field were investigated realizing the first experiment for laser-assisted ionization.… Expand
Non-sequential double ionization of Ne in intense laser pulses: a coincidence experiment.
- R. Moshammer, B. Feuerstein, +12 authors W. Sandner
- Physics, Medicine
- Optics express
- 26 March 2001
The dynamics of Neon double ionization by 25 fs, 1.0 PW/cm 2 laser pulses at 795 nm has been studied in a many particle coincidence experiment. The momentum vectors of all ejected atomic fragments… Expand
Canadian peacekeeping: Proud tradition, strong future?
- A. Dorn
- Political Science
- 1 January 2005
Peacekeeping has a place of pride in the Canadian national identity. Canadians feel that their nation is a natural leader in this international endeavour. How is this national identity expressed, and… Expand
The Justifications for War and Peace in World Religions
- A. Dorn, Anne Frances Cation
- Political Science, History
- 1 July 2009
Abstract : One of the most important decisions of any nation or armed group is when, if ever, to wage war or apply armed force. Such life-and-death judgements are informed by and sometimes determined… Expand
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