|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'500'096
Articles rated: 2609
18 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Altered Axion Abundance from a Dynamical Peccei-Quinn Scale | | Itamar J. Allali
; Mark P. Hertzberg
; Yi Lyu
; | | Date: |
29 Mar 2022 | | Abstract: | We build a model in which the relic abundance of axions is altered from the
standard misalignment mechanism, either increased or decreased, due to the
presence of a new light scalar that couples to the radial part of the
Peccei-Quinn (PQ) field. The light scalar makes the effective PQ
symmetry-breaking scale dynamical, altering the early-time dynamics for the
axion and affecting its late-time dark matter abundance. We analyze this new
mechanism semi-analytically and numerically, showing that we can accommodate
both lighter or heavier axion dark matter, compared to the standard treatments.
We discuss implications of the model for axion searches and fundamental
physics. | | Source: | arXiv, 2203.15817 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser claudebot
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER