Multiple ionization of Ar by alpha particles

C. C. MONTANARI; J. E. MIRAGLIA

Toledo

Congreso; XXIX Internacional Conference on Photonic, Electronic and Atomic Collisions, ICPEAC2015; 2015

Internacional Conference on Photonic, Electronic and Atomic Collisions

We present theoretical results on multiple ionization of Ar by He2+ by employing the continuum distorted-wave eikonal initial state together with photoionization branching ratios to include Auger-type contributions.We also analyze the inner-shell ionization cross sections (K and L-shells of Ar). The high energy experimentaldata is correctly described, showing differences with proton impact tendency in the post-collisional region.At intermediate impact energies (direct ionization region) the single and double ionization are describedrather well, but we note certain overestimation for higher final charge states.