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Baryogenesis at the QCD Scale

R. Brandenberger·I. Halperin·A. Zhitnitsky
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Abstract

We propose a new mechanism for explaining the observed asymmetry between matter and antimatter, based on nonperturbative physics at the QCD scale. Our mechanism is a charge separation scenario, making use of domain walls separating the recently discovered long-lived metastable vacua from the lowest energy vacuum. The walls acquire a fractional negative baryon charge, leaving behind a compensating positive baryon charge in the bulk. The regions of metastable vacuum bounded by walls ("B-shells") will contribute to the dark matter of the Universe.

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R. Brandenberger, I. Halperin, A. Zhitnitsky. 1999-03-11. Baryogenesis at the QCD Scale. https://arxiv.org/abs/hep-ph/9903318

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