Figure 4

Source radius parameter, $R$, extracted in the present analysis fromK$^0_{\rm S}$K$^{\rm \pm}$ femtoscopy averaged over K$^0_{\rm S}$K$^{\rm +}$and K$^0_{\rm S}$K$^{\rm -}$ and the two baseline fit methods (red symbols),along withcomparisons with identical kaon results from ALICE~ (blue symbols) Statistical (lines) and the linear sum of statistical and systematic uncertainties (boxes) are shown.
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