Fig. 7.

Fits of the SND20 dipion data [25] together with the spacelike data [54, 55]. The top panel shows the fit residuals when the timelike dipion channel is covered by the SND20 and BaBar [78] samples; similarly, the middle panel displays the fit residuals when covering the timelike dipion channel by the SND20 [25] and NSK [43–45, 77] spectra; the bottom panel reports likewise the case when the timelike dipion channel is covered by the SND20 and KLOE [46, 47] samples. All reported systematics are treated as point-to-point correlated