Right: illustration of an instance of the fit performed on one run, with the color lines illustrating the implemented models. The bottom panel displays the residual between the fit function and the corresponding data. The run in question spans approximately 28.5 hours. Left: the measured specific activity of 39 Ar plotted against the run time for the complete dataset. The exponential trendline fit is depicted, accompanied by an error band representing the average statistical uncertainty. Note that the systematic uncertainty band extends beyond the y-axis range depicted in this figure. Taken from [3].

Contexts in source publication

Context 1

... number of single 39 Ar decays is calculated by fitting a model composed of single decay, double decay, and other electronic recoil background, to the data. An example of the fit is shown in the left plot of Figure 3. The number of single decay is then determined by the integral of the single decay fit times the prescale factor divided by the bin size and an efficiency factor (í µí¼€). ...

Context 2

... Turcotte-Tardif time between the extraction of argon from the atmosphere and the running time of the detector. The specific activity of 39 Ar during the operation of DEAP-3600 is shown on the right plot of Figure 3. This measurement is consistent with results from other experiments [8,9] and represents a leading level of precision. ...