1998/08/28 by R. Brandenberger, Robert Brandenberger, Igor Halperin +6 · 1 citation
Economics, Econometrics and Finance · Physics and Astronomy · #Astrophysics (astro-ph) #Complex Systems and Time Series Analysis #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #Quantum Chromodynamics and Particle Interactions #Theoretical and Computational Physics #astro-ph #hep-ph #hep-th
paper · pdf · doi:10.48550/arxiv.hep-ph/9808471
The role of explicit CP violation is clarified. RevTex, 4 pages
openalex publication_date 1998/08/28 · arxiv created 1999/01/05 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We propose a new baryosymmetric mechanism for baryogenesis which takes place at the QCD scale and is based on the existence of domain walls separating the metastable vacua from the lowest energy vacuum. The walls acquire fractional negative and positive baryon charges, while the observed baryon asymmetry is due to a non-zero value of the θ angle at the temperatures near the QCD chiral phase transition. The regions of metastable vacuum bounded by walls carry a negative baryon charge and may contribute a significant fraction of the dark matter of the Universe.