Testing Kinetic Theory with Antimatter Plasmas

Experiments are planned to measure the collision rates between species in two-component non-neutral plasmas in ALPHA. By using antimatter particles, electrons and antiproton "ions" can be held in a Penning-Malmberg trap using a single-polarity confining potential. New predictions from kinetic theory (Jose et. al., Phys. Rev. E 111, 035201 [2025]) can be used to generalize the previous analysis of Beck, Fajans, and Malmberg (Phys Plasmas 3, 1250 [1996]) from one-component plasmas (electrons) to two-component plasmas (electrons plus antiprotons). A description of the planned experiment will be presented. Joel's presence will be missed during these upcoming runs.