The running of coupling constants and unitarity in a finite electroweak model

Understand

We investigate the properties of a Finite Electroweak (FEW) Theory first proposed in 1991.

• The theory predicts a running of the electroweak coupling constants and a suppression of tree level amplitudes, ensuring unitarity without a Higgs particle.
• We demonstrate this explicitly by calculating W_L^+W_L^- -> W_L^+W_L^- and e+e- -> W_L^+W_L^- in both the electroweak Standard Model and the FEW model.