p-$\Sigma^+$ correlation function in high-multiplicity triggered pp collisions at $\sqrt{s}=13$ TeV with several model calculations using the full wave functions and the effective Gaussian parametrization of the source. The blue and magenta regions correspond to all parameter sets within the 1$\sigma$ contours of Fig. 3. The Jülich '04 meson-exchange model, which resides within the 1$\sigma$ contours, is shown as a black line. For comparison, the SMS NLO (V2) is also shown as a green line.