| Autor: |
Klaas Bijlsma, Lamberto Oltra, Emiel de Wit, Luc Assink, Ismanuel Rabadán, Luis Méndez, Ronnie Hoekstra |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Atoms, Vol 12, Iss 2, p 9 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2218-2004 |
| DOI: |
10.3390/atoms12020009 |
| Popis: |
Over a wide and partly overlapping energy range, the single-electron capture cross-sections for collisions of metastable Sn2+(5s5p Po3) (Sn2+∗) ions with H2 molecules were measured (0.1–10 keV) and calculated (0.3–1000 keV). The semi-classical calculations use a close-coupling method on a basis of electronic wavefunctions of the (SnH2)2+ system. The experimental cross-sections were extracted from double collisions in a crossed-beam experiment of Sn3+ with H2. The measured capture cross-sections for Sn2+∗ show good agreement with the calculations between 2 and 10 keV, but increase toward lower energies, whereas the calculations decrease. Additional Landau–Zener calculations were performed and show that the inclusion of spin-orbit splitting cannot explain the large cross-sections at the lowest energies which we now assume to be likely due to vibrational effects in the molecular hydrogen target. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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