Measured correlation function of \LKPlus pairs. Statistical (bars) and systematic (boxes) uncertainties are shown separately. The light cyan band represents the total fit obtained using Eq.~\ref{eq:totcorrelation} from which the normalization $N_D$, and the scattering parameters (\Rescatt,\Imscatt, and \effran) are extracted. The orange band represents the $C_\mathrm{background}(\kstar)$ contribution, modeled as described in Section~\ref{sec:cf}, and multiplied by the constant $N_D$. Lower panel: $n_\sigma$ deviation between data and model in terms of numbers of standard deviations.