Antiproton-impact ionization of H, He and Li

作者：Pindzola M S^*; Lee T G; Colgan J

来源：Journal of Physics B: Atomic, Molecular and Optical Physics , 2011, 44(20): 205204.

DOI：10.1088/0953-4075/44/20/205204

Time-dependent close-coupling methods based on the expansion of one-and two-active-electron wavefunctions in spherical harmonics are used to calculate antiproton-impact single-ionization cross sections for H, He and Li. The single active electron cross sections are found to be in fair agreement with previous calculations and experiment for H and in good agreement with previous calculations for Li. However, the single active electron cross sections for He are found to be considerably larger than current and the previous two active electron cross sections, other calculations and experiment. It appears that electron correlation effects play a significant role in antiproton-impact ionization of He.

• 出版日期2011-10-28