Related paper Femtoscopic correlations of identical charged pions and kaons in pp collisions at $\sqrt{s}=13$ TeV with event-shape selection The Gaussian pion radii with $S_{\rm T}>0.7$ (open circles), $S_{\rm T}<0.3$ (solid circles) and without sphericity selection (solid crosses). Statistical (bars) and systematic (boxes) uncertainties are shown. [png] [pdf] [eps]