Double electron capture probability at Не$^{2+}$ ion Xe atom collisions with different impact parameters

A. A. Basalaev, M. N. Panov, O. V. Smirnov

Ioffe Institute, St. Petersburg

Abstract: Differential cross sections for scattering of helium atoms formed at collisions of Не$^{2+}$ ions with kinetic energies of 1.97, 3.00, and 7.17 keV/a.m.u with Xe atoms in processes with the formation of slow xenon ions with charges 2 – 4 have been measured. The projectiles deflection function is calculated. The probability of all these processes occurring at various values of the impact parameter of colliding particles is determined. The role of the electron shells of the Xe atom 5$(s,p)$ and 4$(s,p,d)$ for the capture of two electrons is determined depending on the speed of approach of the colliding particles, the impact parameter and the charge of the formed xenon ions.

Keywords: double electron capture, capture with ionization, scattering differential cross section, impact parameter.

Received: 16.06.2021
Revised: 06.07.2021
Accepted: 06.07.2021

DOI: 10.21883/PJTF.2021.20.51611.18921

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