1. A Cosmological Solution to the Doublet-Triplet Splitting Problem
- Author
-
Csaki, Csaba, D'Agnolo, Raffaele Tito, Kuflik, Eric, and Sesma, Pablo
- Subjects
High Energy Physics - Phenomenology ,High Energy Physics - Theory - Abstract
We propose a model that provides a simultaneous solution to the doublet-triplet splitting problem of grand unified theories, the electroweak hierarchy problem and the strong CP problem. The mechanism is based on the dynamics of two axion-like particles that would crunch the universe at the time of the QCD phase transition if triplets were light or had a VEV or if doublets were heavy or did not have a VEV. The only trace left at low energies are these two axion-like particles. They are weakly coupled to the Standard Model and could be detected at upcoming axion experiments or by a combination of neutron EDM measurements and the astrophysical detection of fuzzy dark matter., Comment: 40 pages, 14 figures
- Published
- 2024