Λ-Anomaly in the Hadronic Chemical Freeze-Out
DOI:
https://doi.org/10.15407/ujpe59.08.0755Keywords:
hadron multiplicities, hard-core repulsion, chemical freeze-out, strangeness suppressionAbstract
A new way to overcome the Λ hyperon selective suppression, which is known as the Λ-anomaly, has been suggested. In particular, the additional radius of a Λ 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 x2/dof = 52/55 ≃ 0.95.
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