Example of one-time correlation functions at tage = 100 extracted from the 2-TCF of Fig. 6 using the convention of Brown et al. (1997) (open red circles) and the new convention proposed here (blue crosses). The dashed (black) and solid (green) lines have been obtained by fitting the one-time correlation data with the function , where τ is the correlation time and α the Kolhrausch–Williams–Watts exponent (Madsen et al., 2010). For the fits, only the data up to have been considered.