Evidence of radiative charge transfer in argon dimers

The Auger spectra of Ar2 dimers recorded in coincidence with the Ar+-Ar+ ion pairs and of the Ar atoms recorded in coincidence with the Ar2+ ions. These Auger electron spectra suggest that the Ar2+(3p−2)-Ar decays further only via radiative charge transfer to Ar+(3p−1)-Ar+(3p−1).