of scaling variable. Panel a) corresponds to pions, b) to kaons and c) to protons. In panel d) we show comparison of geometrical scaling for protons in scaling variables $\tau_{\tilde{m}_{\rm T}}$ and $\tau_{m_{\rm T}}$, no GS can be achieved in the latter case.[]{data-label="ratiosmandpT"}](pr_RmT_pT_027.pdf "fig:") ![Panels a) – c): comparison of geometrical scaling in three different variables: $\tau_{p_{\rm T}}$, $\tau_{\tilde{m}_{\rm T}}$ and $\tau_{\tilde{m}_{\rm T} p_{\rm T}}$ for $\lambda=0.27$. Full symbols correspond to ratios $R_{W_{1}/W_{2}}$ plotted in terms of the scaling variable $\tau_{p_{\rm T}}$, open symbols to $\tau_{\tilde{m}_{\rm T}}$ and $\tau_{\tilde{m}_{\rm T}%
p_{\rm T}}$, note negligible differences between the latter two forms of scaling variable. Panel a) corresponds to pions, b) to kaons and c) to protons. In panel d) we show comparison of geometrical scaling for protons in scaling variables $\tau_{\tilde{m}_{\rm T}}$ and $\tau_{m_{\rm T}}$, no GS can be achieved in the latter case.[]{data-label="ratiosmandpT"}](pr_RmT0_pT_027.pdf "fig:")

Let us remark that recently CMS collaboration has published data on identified spectra [@Chatrchyan:2012qb], however for much smaller range of transverse momenta. Pion and proton spectra have been measured up to 1.5 – 1.7 GeV/$c$ respectively, whereas kaons up to 1 GeV/$c$ only. In this region ratios $R_{W_1/W_2}$ develop a dip and therefore an attempt to 