Comment on the observed inhibition of current from electronic bubble states in liquid helium into the vapor phase

It is proposed that, in the temperature range between approximately 3 and 4 K, electrons in bubble states in liquid helium may resonantly attach to ${\mathrm{O}}_2$ impurities (present at a fractional concentration of order ${10}^{-13\mathrm{}}$). This proposal would account for the observations of Schoepe and Wagner at temperatures below approximately 4 K.