Electron capture and ionization processes in high velocity Cn+, C-Ar and Cn+, C-He collisions

29th International Conference on Photonic, Electronic, and Atomic Collisions

Labaigt, G.^1 ; Jorge, A.^2 ; Illescas, C.^2 ; Béroff, K.^3 ; Dubois, A.^1 ; Pons, B.^4 ; Chabot, M.^5

Laboratoire de Chimie Physique-Matière et Rayonnement, Université Paris 06, CNRS, Paris

F-75231, France^1

Departamento de Qimica, Universidad Autonoma de Madrid, Modulo 13, Madrid

28049, Spain^2

Institut des Sciences Moléculaires d'Orsay, Université Paris Sud, CNRS, Orsay Cedex

F-91405, France^3

CELIA, Université de Bordeaux, CEA, CNRS, Talence

33405, France^4

Institut de Physique Nucléaire d'Orsay, Université Paris Sud, CNRS, Orsay Cedex

F-91406, France^5

关键词: Atomic orbital;    Classical trajectory monte carlo;    Close coupling;    Cluster-atom collisions;    Double electron capture;    Electron capture;    Ionization process;    Multiple ionization;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/3/032084/pdf
DOI  :  10.1088/1742-6596/635/3/032084

来源: IOP

【 摘 要 】

Single and double electron capture as well as projectile single and multiple ionization processes occurring in 125keV/u Cn+-He, Ar collisions have been studied experimentally and theoretically for 1 ≤ n ≤ 5. The Independent atom and electron (IAE) model has been used to describe the cluster-atom collision. The ion/atom-atom probabilities required for the IAE simulations have been determined by classical trajectory Monte Carlo (CTMC) and semiclassical atomic orbital close coupling (SCAOCC) calculations for the Ar and He targets respectively. In general the agreement between experiment and IAE simulations was good, with the exception of double electron capture leading to anionic C-nspecies.