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

G Labaigt (1) , A Jorge (2) , C Illescas (2) , K Béroff (3) , A Dubois (1) , B Pons (4) , M Chabot (5)

1 LCPMR - Laboratoire de Chimie Physique - Matière et Rayonnement
2 Departamento de Química
3 ISMO - Institut des Sciences Moléculaires d'Orsay
4 CELIA - Centre d'Etudes Lasers Intenses et Applications
5 IPNO - Institut de Physique Nucléaire d'Orsay

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−n species.

Domaines: Physique [physics]

G Labaigt, A Jorge, C Illescas, K Béroff, A Dubois, et al.. 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 (ICPEAC2015), Jul 2015, Toledo, Spain. pp.032084, ⟨10.1088/1742-6596/635/3/032084⟩. ⟨hal-01203454⟩