State selective fragmentation of doubly ionized sulphur dioxide

M. Jarraya (1, 2) , M. Wallner (3) , G. Nyman (4) , S. Ben Yaghlane (2) , Majdi Hochlaf (1) , J. Eland (5) , R. Feifel (3)

1 COSYS-LISIS - Laboratoire Instrumentation, Simulation et Informatique Scientifique
2 LSAMA - Laboratoire de Spectroscopie Atomique, Moléculaire et Applications
3 Department of Physics [Gothenburg]
4 GU - Göteborgs Universitet = University of Gothenburg
5 Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University

Abstract Using multi-electron–ion coincidence measurements combined with high level calculations, we show that double ionisation of SO 2 at 40.81 eV can be state selective. It leads to high energy products, in good yield, via a newly identified mechanism, which is likely to apply widely to multiple ionisation by almost all impact processes.

Domaines: Chimie

M. Jarraya, M. Wallner, G. Nyman, S. Ben Yaghlane, Majdi Hochlaf, et al.. State selective fragmentation of doubly ionized sulphur dioxide. Scientific Reports, 2021, 11 (1), pp.17137. ⟨10.1038/s41598-021-96405-5⟩. ⟨hal-04415139⟩