| Autor: |
R. O. Barrachina, F. Navarrete |
| Rok vydání: |
2016 |
| Předmět: |
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| Zdroj: |
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 369:72-76 |
| ISSN: |
0168-583X |
| DOI: |
10.1016/j.nimb.2015.09.073 |
| Popis: |
We review the concept of quantum vortices and their appearance in ionization collisions. By relaxing the usual geometrical restrictions on the momenta of the final-state, we study these vortices as submanifolds of codimension 2 in the space where the transition matrix element T is defined. In particular, we exemplify their main characteristics by studying the ionization of hydrogen by positron impact. Previous calculation under a collinear geometry for impact energies larger than 270 eV have shown the presence of three isolated vortices. Here we demonstrate that they are produced by a single vortex line intersecting three times the corresponding two-dimensional collinear plane. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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