Baryogenesis through axion domain wall

Details Baryogenesis through axion domain wall Baryogenesis through axion domain wall

2000-02-21

arxiv.org/abs/hep-ph/0002219v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages

Scientific paper

Generic axion models give rise to axion domain walls in the early Universe
and they have to disappear not to overclose the universe, thus limiting the
nature of discrete symmetry allowed in these type of models. Through QCD
sphalerons, net chiral charge can be created by these collapsing walls which in
turn can result the observed baryon assymmetry.

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