Speaker
Alessandro Valenti
(University of Padua)
Description
Scenarios assuming an exact CP symmetry in the UV do not suffer quality problems, and are thus interesting alternatives to PQ-based solutions to the Strong CP problem. However, to correctly reproduce the Standard Model quark masses and CP violation these models must feature a non-trivial coincidence between a priori unrelated CP-even and CP-odd mass scales. In this talk we elucidate the origin of this condition and show that it can be naturally addressed by a confining dynamic generated at the Planck scale. This approach is robust and very predictive: it features vector-like quarks below a few 10’s of TeV and a dark sector that may lead to interesting cosmological signatures.
Author
Alessandro Valenti
(University of Padua)
Co-author
Luca Vecchi
(EPFL - Ecole Polytechnique Federale Lausanne (CH))
