Étude théorique de l'échange de charge et de l'excitation dans une collision à basse énergie entre un ion (atome) et un agrégat métallique simple

Abstract : The excitation and charge transfer process are well know in atomic collisions. The aim of this thesis is the study of these process in collisions with metallic clusters. We have worked at low velocities. So to describe the collision, we have used the mollecular method. The resolution of the Schrödmger equation for a great number of electrons is possible, to solve this problem, we have applied the independent electron model (IEM). In this experience, we can detect only some of the electrons to describe this situation, we use the inclusive probabilities formalism, and so we calculate the charge transfer and excitation cross sections. In the collisions atom ? clusters of sodium, we have compared with the experimental results of the Aimé Cotton laboratory in Orsay and we have found a good agreement. This has confirmed the validity of our theoretical method
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Bilel Zarour. Étude théorique de l'échange de charge et de l'excitation dans une collision à basse énergie entre un ion (atome) et un agrégat métallique simple. Physique Atomique [physics.atom-ph]. Université Paul Verlaine - Metz, 2001. Français. ⟨NNT : 2001METZ003S⟩. ⟨tel-01775451⟩

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