“…Since the number of events is so small, no statistical analysis of the event to event statistical variability of is carried out, although an inspection of the obtained results indicates that the estimated mean of varies from event to event. This observation is consistent with the results obtained from the ordinary Fourier analysis 8 . By using the estimated lagged coherence from all events listed in Table 1, the estimated mean of is shown in Figure 10B for selected separation intervals, while the estimated mean of is presented in Figure 10A.…”