Baryogenesis at the QCD Scale
High Energy Physics - Phenomenology
2007-05-23 v1 Astrophysics
High Energy Physics - Theory
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.
Keywords
Cite
@article{arxiv.hep-ph/9903318,
title = {Baryogenesis at the QCD Scale},
author = {R. Brandenberger and I. Halperin and A. Zhitnitsky},
journal= {arXiv preprint arXiv:hep-ph/9903318},
year = {2007}
}
Comments
11 pages, based on a plenary talk by R.B. at SEWM-98 and an invited talk by A.Z. at COSMO-98, to be publ. in the proceedings of SEWM-98