Comment on “Experimental study of single- and double-electron transfer in slow ${\mathrm{Ne}}^{8+}+\mathrm{He}$ collisions using photon and electron spectroscopy”

In this Comment we question the recent emphasis by Langereis et al. [Phys. Rev. A 60, 2917 (1999)] that excitation of triplet states in double-capture processes is noticeable in the ${\mathrm{Ne}}^{8+}{(1s}^2{)}^{1}S+\mathrm{He}{(1s}^2{)}^{1}S$ collisional system at 80 keV. We demonstrate that all their identified ${\mathrm{Ne}}^{6+}{(1s}^2{3lnl}^{\prime })$ autoionizing transitions can be perfectly explained by excitation of singlet states alone. In our opinion their findings based on electron spectroscopy rely on too inaccurate spectrum analysis and theoretical input data.