Formation of H̅ in p̅-Ps collisions embedded in plasmas

摘要: Screening effects of plasmas on the formation antihydrogen (H) in an arbitrary s-state from ground state positronium atom (Ps) by antiproton (p) impact have been studied within framework of charge-conjugation and time-reversal invariance. Two types plasma environments have been considered, namely weakly coupled dense quantum plasma. For coupled plasma, interactions among charged particles represented by Debye-Huckel screening model, whereas for plasma, the charged exponential cosine-screened Coulomb potentials. Effects cross section energy range 15–400 keV incident antiproton. free atomic case, our results agree well with some most accurate available the literature.