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Axion-Assisted Electroweak Baryogenesis

Abstract:

We consider a hidden-valley gauge sector, G, with strong coupling scale Lambda~TeV and CP-violating topological parameter, theta, as well as a new axion degree of freedom which adjusts theta to near zero in the current universe. If the G-sector couples to the Standard Model via weak-scale states charged under both, then in the early universe it is possible for the CP-violation due to theta (which has not yet been adjusted to zero by the hidden axion) to feed in to the SM and drive efficient b...

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Publication date:
2010-06-30
Source identifiers:
151169
Keywords:
Pubs id:
pubs:151169
UUID:
uuid:1e6fead9-d5e1-4ea7-9de6-1561c98f5fc1
Local pid:
pubs:151169
Deposit date:
2013-02-20

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