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Cluster excitation and ionization in high velocity collisions:the atomic approach
Férid Mezdari1, Karine Wohrer-Béroff1, Marin Chabot2

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.
1 :  LCAM - Laboratoire des collisions atomiques et moléculaires
2 :  IPNO - Institut de Physique Nucléaire d'Orsay
Physique/Physique/Agrégats Moléculaires et Atomiques
clusters – high velocity collisions – independent atom and electron model – electronic excitation – energy deposit – ionization cross sections – two-centre interferences
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theorie_IAE.pdf(74 KB)