Abstract |
| Despite the fact that any laboratory data on the antihydrogen formation by landing antiproton on the positronium atom, as a three-body charge-transfer reaction, at energies being appropriate for high-precision spectroscopy of antimatter has not been reported yet, some measurements of charge-conjugation reaction have been performed. This reaction is the hydrogen formation by landing proton on positronium. In this study, the two-state approximation is utilized for the charge-transfer process in the proton-positronium collisional system. Through this method, the non-orthogonality of initial and final states, and its contribution to the angular distribution of partial cross sections are considered. The state-to-state partial cross sections for the transition from the groundstate of positronium to the ground state and some excited states of hydrogen are reported; furthermore, finally, the total cross-sections are provided. |
Keywords and phrases
hydrogen formation, proton, positronium, antimatter, two-state approximation, cross-section, charge-conjugation reaction.
|
FRDI Journals 
