K. Paludan et al., IONIZATION OF RARE-GASES BY PARTICLE-ANTIPARTICLE IMPACT, Journal of physics. B, Atomic molecular and optical physics, 30(17), 1997, pp. 581-587
New data for single and double ionization of the rare gases Ne, Ar, Kr
and Xe, by positron and antiproton impact are presented and compared
with existing data for electron and proton impact. It is found that th
e current understanding of these processes obtained from studies invol
ving low-Z targets only extends to high-Z atoms provided that certain
target-dependent effects are taken into consideration. In particular,
the static interaction between the projectile and the undistorted targ
et is found to play a crucial role in the case of the lighter projecti
les.