Separation power ($n_{\sigma}$) of hadron identification in the HMPID as a function of $p_{\rm{T}}$. The separation n$_{\sigma}$ of pions and kaons (kaons and protons) is defined as the difference between the average of the Gaussian distributions of $\langle\theta_{\rm{ckov}}\rangle$ for the two hadron species divided by the average of the Gaussian widths of the two distributions.