Ionization from the outer shell of Ar by proton impact

S. Bhattacharya, R. Das, N.C. Deb, K. Roy, Derrick Crothers

Research output: Contribution to journalArticle

5 Citations (Scopus)


Recent results for proton-argon total ionization cross sections [Kirchner Phys. Rev. Lett. 79, 1658 (1997)] show large disagreement between theory and experiment for energies below 80 keV. To address this problem we have employed a recently developed theoretical method with a more pragmatic approach to the charge screening both in the initial and final channels. The target is considered as a one-electron atom and the interactions between this active electron and remaining target electrons are treated by a model potential including both short- and long-range effects. In the final channel the usual product of two continuum distorted wave functions each associated with a distinct electron-nucleus interaction is used. New results in the present calculation show good agreement in total cross sections for the energy range 10-300 keV with the measurement of Rudd [Rev. Mod. Phys. 57, 965 (1985)].
Original languageEnglish
Pages (from-to)052702
Number of pages1
JournalPhysical Review A
Issue number5
Publication statusPublished - Nov 2003

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy(all)

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    Bhattacharya, S., Das, R., Deb, N. C., Roy, K., & Crothers, D. (2003). Ionization from the outer shell of Ar by proton impact. Physical Review A, 68(5), 052702.