Axiogenesis
Journal Article
·
· Physical Review Letters
- Univ. of Michigan, Ann Arbor, MI (United States)
- Institute for Advanced Study, Princeton, NJ (United States)
We propose a mechanism called axiogenesis where the cosmological excess of baryons over antibaryons is generated from the rotation of the QCD axion. The Peccei-Quinn (PQ) symmetry may be explicitly broken in the early Universe, inducing the rotation of a PQ charged scalar field. The rotation corresponds to the asymmetry of the PQ charge, which is converted into the baryon asymmetry via QCD and electroweak sphaleron transitions. In the concrete model we explore, interesting phenomenology arises due to the prediction of a small decay constant and the connections with new physics at the LHC and future colliders and with axion dark matter.
- Research Organization:
- Institute for Advanced Study, Princeton, NJ (United States); Univ. of Michigan, Ann Arbor, MI (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); Raymond and Beverly Sackler Foundation Fund
- Grant/Contract Number:
- SC0009988; SC0019225
- OSTI ID:
- 1605496
- Alternate ID(s):
- OSTI ID: 1801997
- Journal Information:
- Physical Review Letters, Vol. 124, Issue 11; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 60 works
Citation information provided by
Web of Science
Web of Science
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