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 \(SU(2N_{F})\) 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 at high temperature on the T -μ plane is at least approximately \(SU(2)_{CS}\) and \(SU(2N_{F})\) symmetric.
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Communicated by R. Sharma
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Glozman, L.Y. Chiralspin symmetry and QCD at high temperature. Eur. Phys. J. A 54, 117 (2018). https://doi.org/10.1140/epja/i2018-12560-0
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DOI: https://doi.org/10.1140/epja/i2018-12560-0