Excitation of heavy hydrogen-like ions by light atoms in relativistic collisions with large momentum transfers

Details Excitation of heavy hydrogen-like ions by light atoms in relativistic collisions with large momentum transfers Excitation of heavy hydrogen-like ions by light atoms in relativistic collisions with large momentum transfers

2012-03-16

arxiv.org/abs/1203.3707v1

Physics

Atomic Physics

15 pages, 2 figures

Scientific paper

We present a theory for excitation of heavy hydrogen-like projectile-ions by light target-atoms in collisions where the momentum transfers to the atom are very large on the atomic scale. It is shown that in this process the electrons and the nucleus of the atom behave as (quasi-) free particles with respect to each other and that their motion is governed by the field of the nucleus of the ion. The effect of this field on the atomic particles can be crucial for the contribution to the excitation of the ion caused by the electrons of the atom. Due to comparatively very large nuclear mass, however, this field can be neglected in the calculation of the contribution to the excitation due to the nucleus of the atom.

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