Antihydrogen Formation via Antiproton Scattering with Excited Positronium

Antihydrogen Formation via Antiproton Scattering with Excited Positronium

Utilizing the two-center convergent close-coupling method, we find a several order of magnitude enhancement in the formation of antihydrogen via antiproton scattering with positronium in an excited state over the ground state. The effect is greatest at the lowest energies considered, which encompass...

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Veröffentlicht in:Physical review letters 2015-05, Vol.114 (18), p.183201-183201, Article 183201
Hauptverfasser: Kadyrov, A S, Rawlins, C M, Stelbovics, A T, Bray, I, Charlton, M
Format: Artikel
Sprache:eng
Schlagworte:
Antihydrogen
Antimatter
Antiprotons
Excitation
Formations
Gravitation
Positronium
Scattering
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Zusammenfassung:Utilizing the two-center convergent close-coupling method, we find a several order of magnitude enhancement in the formation of antihydrogen via antiproton scattering with positronium in an excited state over the ground state. The effect is greatest at the lowest energies considered, which encompass those achievable in experiment. This suggests a practical approach to creating neutral antimatter for testing its interaction with gravity and for spectroscopic measurements.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.114.183201