Chiralspin symmetry and QCD at high temperature
Abstract
It has been found very recently on the lattice that at high temperature at vanishing chemical potential QCD is increasingly SU(2)CS and SU(2NF) symmetric. We demonstrate that the chemical potential term in the QCD Lagrangian has precisely the same symmetry. Consequently the QCD matter beyond the chiral restoration line on the T - μ plane is at least approximately SU(2)CS and SU(2NF) symmetric.
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