Antihydrogen formation via antiproton scattering on positronium between the $e^{-} +\bar {H}(n = 2)$ and $e^{-}+\bar {H}(n = 3)$ thresholds - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2018

Antihydrogen formation via antiproton scattering on positronium between the $e^{-} +\bar {H}(n = 2)$ and $e^{-}+\bar {H}(n = 3)$ thresholds

Résumé

The charge exchange reaction $\bar {\mathrm {p}} + \text {Ps} \rightarrow \mathrm {e}^{-} + \bar {\mathrm {H}} $ , of interest for the future experiments (GBAR, AEGIS, ATRAP, ...) aiming to produce antihydrogen atoms, is investigated in the energy range between the $\mathrm {e}^{-}+\bar {\mathrm {H}}(n = 2)$ and $\mathrm {e}^{-}+\bar {\mathrm {H}}(n = 3)$ thresholds. An ab-initio method based on the solution of the Faddeev-Merkuriev equations is used. Special focus is put on the impact of the Feshbach resonances and the Gailitis-Damburg oscillations, appearing in the vicinity of the $\bar {\mathrm {p}} +\text {Ps}(n = 2)$ threshold, on the $\bar {\mathrm {H}}$ production cross section.
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Dates et versions

hal-01902848 , version 1 (23-10-2018)

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Marianne Dufour, Mateo Valdes, Rimantas Lazauskas, Paul-Antoine Hervieux. Antihydrogen formation via antiproton scattering on positronium between the $e^{-} +\bar {H}(n = 2)$ and $e^{-}+\bar {H}(n = 3)$ thresholds. 13th International Conference on Low Energy Antiproton Physics, Mar 2018, Paris, France. pp.41, ⟨10.1007/s10751-018-1515-1⟩. ⟨hal-01902848⟩
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