QCD phase transition in the early universe - Theory Center
QCD phase transition in the early universe - Theory Center
QCD phase transition in the early universe - Theory Center
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Overview – <strong>QCD</strong>: Formulation – F<strong>in</strong>ite Temperature <strong>QCD</strong> – Unsettled Issues – Early Universe - Summary<br />
Formulation of <strong>QCD</strong><br />
● Gauge <strong>Theory</strong> with classical Lagrangian<br />
,<br />
L=− 1<br />
4 F <br />
– : Quarks<br />
a<br />
A – : Gluons<br />
– Upon quantization commonly auxiliary fields to<br />
described quantum fluctuations (“Ghosts”) are<br />
<strong>in</strong>troduced<br />
<strong>QCD</strong> Phase Transition(s) & The Early Universe/Axel Maas<br />
a F , a iD −m<br />
F<br />
a<br />
=∂<br />
A<br />
a<br />
−∂<br />
A D =∂ −ieA<br />
a<br />
<br />
a<br />
<br />
a<br />
gf<br />
abc b c<br />
A A
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