Cosmological Relaxation of the Electroweak Scale
Abstract
A new class of solutions to the electroweak hierarchy problem is presented that does not require either weak-scale dynamics or anthropics. Dynamical evolution during the early Universe drives the Higgs boson mass to a value much smaller than the cutoff. The simplest model has the particle content of the standard model plus a QCD axion and an inflation sector. The highest cutoff achieved in any technically natural model is 108 GeV .
- Publication:
-
Physical Review Letters
- Pub Date:
- November 2015
- DOI:
- 10.1103/PhysRevLett.115.221801
- arXiv:
- arXiv:1504.07551
- Bibcode:
- 2015PhRvL.115v1801G
- Keywords:
-
- 12.60.Fr;
- Extensions of electroweak Higgs sector;
- High Energy Physics - Phenomenology;
- High Energy Physics - Theory
- E-Print:
- 10 pages, 2 figures. v2: We describe a way in which the bound on the cutoff in the QCD model can be raised to 1000 TeV. We've added a discussion of constraints on reheating. An additional constraint is noted for the non-QCD model. Other clarifications of the model added throughout