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arXiv · 1811.00559

Early Cosmological Period of QCD Confinement

Seyda Ipek·Tim Tait
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Abstract

If the strong coupling is promoted to a dynamical field-dependent quantity, it is possible that the strong force looked very different in the early Universe. We consider a scenario in which the dynamics is such that QCD confines at high temperatures with a large dynamical scale, relaxing back to ~1 GeV before big bang nucleosynthesis. We discuss the cosmological implications and explore potential applications, including fleshing out a new mechanism for baryogenesis which opens up if QCD confines before the electroweak phase transition of the Standard Model.

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Seyda Ipek, Tim Tait. 2018-11-01. Early Cosmological Period of QCD Confinement. https://doi.org/10.1103/physrevlett.122.112001

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