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QCD regimes at increasing temperatures

Published on:

8 February 2024

Primary Category:

High Energy Physics - Lattice

Paper Authors:

L. Ya. Glozman

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Key Details

Indications of three regimes in hot QCD: hadron gas, stringy fluid, quark-gluon plasma

Introduces an electric-sector 'chiral spin symmetry' emerging >155 MeV

Other lattice evidences for stringy fluid regime

Possibility of two phase transitions in large-N_c limit

AI generated summary

QCD regimes at increasing temperatures

This paper overviews lattice results indicating three regimes in hot QCD: a hadron gas below 155 MeV; an intermediate 'stringy fluid' from 155-500 MeV with restored chiral symmetry but still confined; and a quark-gluon plasma above 500 MeV. The paper introduces a 'chiral spin symmetry' appearing in the electric sector above chiral restoration. It discusses the possibility these become distinct phases at large N_c, with two phase transitions.

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