$\mathrm{\Lambda }$ - anomaly in the hadron chemical freeze-out

A new way to overcome the $\mathrm{\Lambda }$ hyperon selective suppression, which is known as the $\mathrm{\Lambda }$-anomaly, has been suggested. In particular, the additional radius of a $\mathrm{\Lambda }$ hyperon is introduced into the model of hadron resonance gas with the multicomponent hard-core repulsion. The proposed approach allows one to describe the hadron multiplicity ratios measured at the AGS, SPS and RHIC energies with the accuracy ${\chi }^2\mathrm{/}dof=$52/55$\simeq$0.95.