| Autor: |
Co RT; Leinweber Center for Theoretical Physics, University of Michigan, Ann Arbor, Michigan 48109, USA., Harigaya K; School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540, USA. |
| Jazyk: |
angličtina |
| Zdroj: |
Physical review letters [Phys Rev Lett] 2020 Mar 20; Vol. 124 (11), pp. 111602. |
| DOI: |
10.1103/PhysRevLett.124.111602 |
| Abstrakt: |
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. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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