Ion induced fragmentation of diatomic molecular clusters

A Méry (1, 2) , A Agnihotri (1, 2) , J Douady (1, 3) , X Fléchard (4) , B Gervais (1, 3) , S Guillous (1) , W Iskandar (5) , E Jacquet (1, 3) , V Kumar (1, 2) , J Matsumoto (6) , J Rangama (1, 2) , F Ropars (1, 2) , C Safvan , H Shiromaru (6) , D Zanuttini (1, 2) , A Cassimi (1, 2)

1 CIMAP - UMR 6252 - Centre de recherche sur les Ions, les MAtériaux et la Photonique
2 AMA - Atomes, Molécules et Agrégats
3 SIMUL - Simulation
4 LPCC - Laboratoire de physique corpusculaire de Caen
5 LBNL - Lawrence Berkeley National Laboratory [Berkeley]
6 TMU - Tokyo Metropolitan University [Tokyo]

Weakly bound atomic or molecular clusters are of growing interest in the fields of atmospheric science, hadron-therapy or astrophysics. We will present our recent experimental results on the fragmentation of diatomic molecular dimers after irradiation by highly charged ions. For (N2)2 dimers, the measured KER spectrum is very similar to the one of the N2 monomers but is globally shifted towards higher energies. Moreover, sequential dissociation of the (CO)2 dimers has been observed when metastable states of the CO2+ dications are populated.

Domaines: Agrégats Moléculaires et Atomiques [physics.atm-clus]; Physique Atomique [physics.atom-ph]; Instrumentations et Détecteurs [physics.ins-det]; Physique Générale [physics.gen-ph]; Chimie-Physique [physics.chem-ph]

A Méry, A Agnihotri, J Douady, X Fléchard, B Gervais, et al.. Ion induced fragmentation of diatomic molecular clusters. 31st International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC31), Jul 2019, Deauville, France. pp.152068, ⟨10.1088/1742-6596/1412/15/152068⟩. ⟨hal-03345634⟩