Radiatively Generating the Higgs Potential and Electroweak Scale via the Seesaw Mechanism

摘要

The minimal seesaw scenario can radiatively generate the Higgs potential to induce electroweak symmetry breaking while supplying an origin of the Higgs vacuum expectation value from an underlying Majorana scale. If the Higgs potential and (derived) electroweak scale have this origin, the heavy SU(3) x SU(2) x U(1)(Y) singlet states are expected to reside at m(N) similar to 10-500 PeV for couplings |omega| similar to 10(-4.5) - 10(-6) between the Majorana sector and the standard model. In this framework, the usual challenge of the electroweak scale hierarchy problem with a classically assumed potential is absent as the electroweak scale is not a fundamental scale. The new challenge is the need to generate or accommodate PeV Majorana mass scales while simultaneously suppressing tree-level contributions to the potential in ultraviolet models.