Speaker
Anke Biekoetter
(JGU Mainz)
Description
In the presence of axions and axion-like particles (ALPs) that couple to the Standard Model via non-renormalisable dimension-5 operators, non-zero Wilson coefficients (WCs) of the Standard Model effective field theory (SMEFT) are induced by renormalisation group evolution. Since many of the SMEFT WCs are experimentally constrained, this ALP-SMEFT interference allows to derive indirect bounds on the ALP couplings to SM particles.
In this talk, we reinterpret bounds on the SMEFT to perform a global analysis of the WCs of the ALP EFT. The obtained bounds are independent of the mass of the ALP. They are competitive with direct (collider) bounds in the O(GeV) − O(TeV) ALP-mass range.
| PhD Student | no |
|---|
Author
Anke Biekoetter
(JGU Mainz)
Co-authors
Anne Galda
(Johannes Gutenberg-University Mainz)
Javier Fuentes-Martin
(Universidad de Granada)
Matthias Neubert
(Johannes Gutenberg University Mainz)
