One-loop Self-energies in the Electroweak Model with Nonlinearly Realized Gauge Group

Understand

We evaluate at one loop the self-energies in generic D dimensions for the W,Z mesons in the Electroweak model where the gauge group is nonlinearly realized.

• In this model the Higgs boson parameters are absent, while a second mass parameter appears together with a scale for the radiative corrections.
• We estimate these parameters in a simplified fit on leptons and gauge bosons data.
• We check physical unitarity and the absence of infrared divergences.