Dresden 2011 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 26: Poster III
A 26.4: Poster
Donnerstag, 17. März 2011, 16:00–18:30, P2
Mutual Projectile and Target Ionization in N4+,5+ +He collisions — •Xincheng Wang1, Aditya Kelkar1, Katharina Schneider1, Michael Schulz2, Bennaceur Najjari1, Alexander Voitkiv1, Manfred Grieser1, Robert Moshammer1, Daniel Fischer1, and Joachim Ullrich1 — 1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, — 2Physics Department and LAMOR, University of Missouri-Rolla,
We have studied mutual projectile and target ionization processes in 1MeV/amu N4+ and N5+ +He collisions in a kinematically complete experiment. The data has been analyzed with four-particle Dalitz plots, in which multiple differential cross sections are presented as a function of the momenta of all four particles. Theoretical results from various quantum-mechanical models are convoluted with classical elastic scattering (nucleus-nucleus interaction) and the comparisons to experimental results show qualitatively good agreement with eikonal calculations. Better agreement is achieved for N5+ +He collision, while some discrepancies are observed for N4+ +He collision, where the significance of high order effects is underestimated.