Speaker
Description
The opportunity of study light exotic states containing ssbar and ccbar quarks in hadron and ion collisions with Nuclotron deamss with the energies up to 12 GeV is discussed. It represents a good testing tool for the theories of strong interactions, i.e. QCD in both the perturbative and non-perturbative regimes, LQCD, potential models and phenomenological models. The analysis of light exotics containing ssbar and ccbar pair is given. The recent experimental data on such states are analyzed. Special attention was given to the low lying XYZ-particles. The attempts of their possible interpretation are considered. The results on physics simulations are obtained. Some of these states can be interpreted as tetraquarks with a hidden charm or strangeness. But much more data on different decay modes are needed before firmer conclusions can be made. These data can be derived from the experiments using the proton, deutron and ion beams with √S up to 4 GeV planned at Nuclotron facility of the NICA complex.
