Cosmological Relaxation of the Electroweak Scale

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 10^{8} GeV.

• NS
  National Science Foundation

  Awards: PHY-1316706, PHY-1417295, PHY-1214000
• UD
  U.S. Department of Energy

  Award: DE-SC0012012