Mutual projectile and target ionization in 1-MeV/amu N4+ and N5+ + He collisions

作者：Wang X^*; Schneider K; Kelkar A; Schulz M; Najjari B; Voitkiv A; Gundmundsson M; Grieser M; Krantz C; Lestinsky M; Wolf A; Hagmann S; Moshammer R; Ullrich J; Fischer D

来源：Physical Review A, 2011, 84(2): 022707.

DOI：10.1103/PhysRevA.84.022707

We have studied mutual projectile and target ionization in 1-MeV/amu N4+ and N5+ + He collisions in kinematically complete experiments by measuring the momenta of the recoil ion and both ejected electrons in coincidence with the charge-changed projectiles. By means of four-particle Dalitz plots, in which multiple differential cross sections are presented as a function of the momenta of all four particles, experimental spectra are compared with theoretical results from various models. The experimental data are qualitatively reproduced by higher-order calculations, where good agreement is achieved for N5+ + He collisions, while some discrepancies persist for N4+ + He collisions.

• 出版日期2011-8-16
• 单位复旦大学