Region of the measured \XiPi correlation corresponding to the production of $\XicZero$ decaying into \XiPi pairs. Left: results assuming only the presence of the \Xic state. Right: results assuming also the presence of the \XResDuemila state. The pink band represents the fit with Eq. \ref{eq:FitXic}, the polynomial background is given by the grey band. In blue and red, the center values of the profile shape of the \XResDuemila and \XicZero are shown, respectively (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.).