Article Dans Une Revue Physical Review A Année : 2024

Full electron description of antiproton collisions with neon and argon atoms in the keV energy range

Résumé

We investigate keV-collisions between antiproton and the rare gas atoms neon and argon. We use a correlated approach in which the 8 electrons from the L-shell of neon and M-shell of argon are active and up to two-electron processes are included, going thus beyond the approximate theoretical approaches used so far. Our results show that the electronic correlation plays a major role in the single and double ionization processes. Furthermore, we show that two-electron processes contribute significantly to the electronic stopping power. These results apply to both target atoms studied in this work and we therefore conclude that a correlated approach is in general necessary to obtain accurate antiproton electronic stopping power cross sections. Our work paves the way to a better understanding and knowledge of antiproton collision physics.
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Dates et versions

hal-04737689 , version 1 (15-10-2024)

Identifiants

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C C Jia, J W Gao, Y. Wu, J G Wang, N. Sisourat. Full electron description of antiproton collisions with neon and argon atoms in the keV energy range. Physical Review A, 2024, 110 (1), pp.012803. ⟨10.1103/PhysRevA.110.012803⟩. ⟨hal-04737689⟩
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