Integrated total and partial cross sections for dressed carbon-ion collisions with atomic hydrogen

Collisions involving dressed ions is important for applications such as fusion plasma modelling and hadron therapy of cancer. From a theoretical perspective, modelling collisions which involve more than two electrons in a completely ab initio manner is a challenging problem. We employ an effective potential to treat the interactions with the multi-electron projectile ion in a spherically symmetric manner. This reduces the scattering problem of dressed-ion collisions with atomic hydrogen to an effective three-body problem. We have incorporated this potential into the two-centre wave-packet convergent close-coupling (WP-CCC) formalism [1] to study dressed carbon-ion collisions with atomic hydrogen. Specifically, for each charge state of carbon colliding with H, we have calculated the total cross sections for all single-electron processes in the energy region between 1 keV/u to 1 MeV/u, where coupling between the channels is important. We compare our results with the available experimental and theoretical data and present the first set of theoretical calculations for the ionisation cross section in a number of dressed C-ion collisions.

[1] Abdurakhmanov I B et al. 2021 Phys. Rev. A. 104 042820.