Cluster excitation and ionization in high velocity collisions:the atomic approach

Férid Mezdari (1) , Karine Wohrer-Béroff (1) , Marin Chabot (2)

1 LCAM - Laboratoire des collisions atomiques et moléculaires
2 IPNO - Institut de Physique Nucléaire d'Orsay

The independent atom and electron model [1] is introduced in a quantum context and associated approximations tentatively estimated. Confrontation of the model to measured ionization and excitation cross sections of small ionic carbon clusters Cn+ in collisions with helium at an impact velocity of 2.6 a.u is presented.

Mots clés: clusters; high velocity collisions; independent atom and electron model; electronic excitation; energy deposit; ionization cross sections; two-centre interferences

Domaines: Agrégats Moléculaires et Atomiques [physics.atm-clus]

Férid Mezdari, Karine Wohrer-Béroff, Marin Chabot. Cluster excitation and ionization in high velocity collisions:the atomic approach. 2004. ⟨hal-00002994⟩