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The multiplicities of light (anti)nuclei were measured recently by the ALICEcollaboration in Pb+Pb collisions at the center-of-mass collision energy$\sqrt{s_{NN}} =2.76$ TeV. Surprisingly, the hadron resonance gas model is ableto perfectly describe their multiplicities under various assumptions. Forinstance, one can consider the (anti)nuclei with a vanishing hard-core radius(as the point-like particles) or with the hard-core radius of proton, but thefit quality is the same for these assumptions. In this paper we assume thehard-core radius of nuclei consisting of $A$ baryons or antibaryons to followthe simple law $R(A) = R_b (A)^\frac{1}{3}$, where $R_b$ is the hard-coreradius of nucleon. To implement such a relation into the hadron resonance gasmodel we employ the induced surface tension concept and analyze the hadronicand (anti)nuclei multiplicities measured by the ALICE collaboration. The hadronresonance gas model with the induced surface tension allows us to verifydifferent scenarios of chemical freeze-out of (anti)nuclei. It is shown thatthe most successful description of hadrons can be achieved at the chemicalfreeze-out temperature $T_h=150$ MeV, while the one for all (anti)nuclei is$T_A=168.5$ MeV. Possible explanations of this high temperature of (anti)nucleichemical freeze-out are discussed.

On separate chemical freeze-outs of hadrons and light (anti)nuclei in high energy nuclear collisions