. . Ratios of transverse momentum spectra of $\sigmapm$ (a) and $\xizero$ (b) in inelastic \pp collisions at $\cms$ = 13 TeV to the ones in inelastic \pp collisions $\cms$ = 7 TeV  compared with those of $\Xi^{-}$, $\Lambda$ and $\pi^{\pm}$ . The statistical and systematic uncertainties are shown as vertical error bars and boxes, respectively. In the present measurement, the shaded boxes represent the multiplicity-uncorrelated uncertainties.