Thermodynamic characterizations of Exotic and Missing States
E. Megías*, E. Ruiz Arriola and L.L. Salcedo
Pre-published on:
February 19, 2018
Published on:
March 20, 2018
Abstract
Thermal shifts and fluctuations at finite temperature below the deconfinement crossover of QCD from hadronic matter to the Quark-Gluon Plasma provide a viable way to look for exotic and missing states with given quantum numbers in the hadronic spectrum. We study a realization of the Hadron Resonance Gas model in the light quark (uds) flavor sector of QCD to study: i) the entropy shifts, and ii) the fluctuations of electric charge, baryon number and strangeness; and extract from them the possible existence of missing and exotic states from a comparison with lattice data. The analysis of the entropy shift based on the free energy of the Polyakov loop suggests the existence of exotic hybrids gqˉq and gqqq.
DOI: https://doi.org/10.22323/1.310.0232
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