Excited $Σ$ states of the hydrogen-antihydrogen molecule
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866911259532722176 |
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| author | Brumm, L. Schürmann, J. Saenz, A. |
| author_facet | Brumm, L. Schürmann, J. Saenz, A. |
| contents | Adopting explicitly correlated Kolos-Wolniewicz-type basis functions, the Born-Oppenheimer potential curves of a number of excited $Σ$ states of the hydrogen-antihydrogen system ($\bar{\rm H}$) were calculated for both, even and odd, Q symmetries, including also free positronium states. It is demonstrated that the excited leptonic states support ro-vibrational states with energies close to the ground-state dissociation threshold. As a consequence, the excited leptonic states need to be considered in theoretical treatments of ground-state H-$\bar{\mathrm{H}}$ collisions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_08308 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Excited $Σ$ states of the hydrogen-antihydrogen molecule Brumm, L. Schürmann, J. Saenz, A. Atomic Physics Quantum Physics Adopting explicitly correlated Kolos-Wolniewicz-type basis functions, the Born-Oppenheimer potential curves of a number of excited $Σ$ states of the hydrogen-antihydrogen system ($\bar{\rm H}$) were calculated for both, even and odd, Q symmetries, including also free positronium states. It is demonstrated that the excited leptonic states support ro-vibrational states with energies close to the ground-state dissociation threshold. As a consequence, the excited leptonic states need to be considered in theoretical treatments of ground-state H-$\bar{\mathrm{H}}$ collisions. |
| title | Excited $Σ$ states of the hydrogen-antihydrogen molecule |
| topic | Atomic Physics Quantum Physics |
| url | https://arxiv.org/abs/2511.08308 |