Confined but chirally symmetric hadrons at large density and the Casher's argument - High Energy Physics - PhenomenologyReportar como inadecuado




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Abstract: Casher-s argument, which is believed to be quite general, states that in theconfining regime chiral symmetry is necessarily broken. In the large-N c limitand at moderate and low temperatures QCD is confining up to arbitrary largedensities, and there should appear a quarkyonic matter. It has beendemonstrated, within a manifestly confining and chirally symmetric model, whichis a 3+1 dimensional generalization of the -t Hooft model, that, at zerotemperature and at a density exceeding a critical one, the chiral symmetry isrestored while quarks remain confined in color-singlet hadrons. This is inconflict with the Casher-s argument. Here we explain the reason why theCasher-s argument fails and clarify the physical mechanism lying behind suchconfined but chirally symmetric hadrons.



Autor: L. Ya. Glozman

Fuente: https://arxiv.org/







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