Exponential-Gaussian-exponential fit example for events with $23 \leq N_{ch} \leq 29$, pairs with $0.3 < k_{\rm T} < 0.4 $GeV/$c$. SH representation. Dotted line shows the femtoscopic component, dash-dotted shows the background, the dashed line shows the full fit. | ![](https://alice-publications.web.cern.ch/sites/default/files/papers/3872/alifemto2.fig11a-26793.png ) |