Figure 7

$R$ parameters extracted by fitting the Lednicky parametrization to K$^0_s$K$^0_s$ correlation functions as shown in Figure 5. Also shown for comparison are $R$ parameters extracted in the same event multiplicity ranges from a $\pi\pi$ femtoscopic study by ALICE in pp collisions at $\sqrt{s}=7$ TeV. Statistical (darker lines) and total errors are shown. The highest $m_{\rm T}$ pion $N_{\rm ch}>11$ point and lower $m_{\rm T}$ kaon $N_{\rm ch}>11$ point have been shifted by 0.03 GeV/$c^2$ for clarity.