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QCD phase transition in the early universe - Theory Center

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Overview – <strong>QCD</strong>: Properties – F<strong>in</strong>ite Temperature <strong>QCD</strong> – Unsettled Issues – Early Universe - Summary<br />

Chiral symmetry and conf<strong>in</strong>ement<br />

● Connection between chiral symmetry and<br />

conf<strong>in</strong>ement<br />

● Removal of conf<strong>in</strong><strong>in</strong>g properties removes<br />

also chiral symmetry break<strong>in</strong>g<br />

● Seem to be l<strong>in</strong>ked by collective<br />

(topological) excitations<br />

● Not understood<br />

– But some progress <strong>in</strong> <strong>the</strong> last years<br />

<strong>QCD</strong> Phase Transition(s) & The Early Universe/Axel Maas

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