Abstract
Doubly differential cross sections for projectile ionization in fast collisions of few-electron uranium ions with the nitrogen target are calculated within the first order of the relativistic perturbation theory. A comparison with the recent measurements of the energy distribution of forward-emitted electrons is made and good agreement is found.
Highlights
For many decades ion-atom collisions serve as a tool for studying basic processes in atomic physics
The approach outlined above was used for the calculation of the energy distribution of the electrons emitted from the few-electron uranium projectiles in fast collisions with nitrogen molecules
The doubly differential cross sections for electron loss to the continuum have been calculated in the framework of the relativistic first-order perturbation theory for few-electron uranium ions colliding with a nitrogen target
Summary
For many decades ion-atom collisions serve as a tool for studying basic processes in atomic physics. Ionization of highly charged projectile heavy ions can uniquely be studied in storage rings in the inverse kinematics in collisions with gas targets In this process, called electron loss to the continuum (ELC), the velocity of the ejected “cusp” projectile electrons is close to the projectile velocity [3]. Theoretical calculations of ionization probabilities and cross sections based on the first-order perturbation theory were largely discussed in the literature [14,15,16,17,18,19,20,21,22] In this contribution, we perform computations of the energy distribution of the forward-emitted electrons in the course of ionization of Li- and Be-like uranium ions in near relativistic collisions with the nitrogen target.
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