Ruling out light axions: The writing is on the wall
We revisit the domain wall problem for QCD axion models with more than one quark charged under the Peccei-Quinn symmetry. Symmetry breaking during or after inflation results in the formation of a domain wall network which would cause cosmic catastrophe if it comes to dominate the Universe. The netwo...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SciPost
2023-07-01
|
| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.15.1.003 |