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Abstract This note suggests a possible origin of low energy tails observed in radiative recombination when at least one of the participating bands is degenerate. An order‐of‐magnitude calculation is made which shows that the effect can have the same origin as similar effects in the soft X‐ray emission spectra of metals. Furthermore, it is suggested that the analysis of experimental tails can lead to information about the screening lengths in the Coulomb interaction between electrons in bands.
P. T. Landsberg (Sat,) studied this question.