Vector Condensate Model of Electroweak Interactions

Abstract

Motivated by the fact that the Higgs is not seen, we have proposed a version of the standard model where the scalar doublet is replaced by a vector doublet and its neutral member forms a nonvanishing condensate. Gauge fields are coupled to the new vector fields B in a gauge invariant way leading to mass terms for the gauge fields by condensation. B-particles become massive because of their self interactions. Fermion and gauge field couplings are standard. Low energy charged current phenomenology fixes the condensate. Fermion masses are coming from the condensation and B-particle-fermion couplings. The Kobayashi-Maskawa description is unchanged. The model has a low mementum scale of about 2 TeV. For instance, from tree-graph unitarity at a scale of 1 TeV the minimum mass of a charged B-particle is 369 GeV. Such B-particles are shown to copiously produced at high-energy linear $e^+e^-$ colliders. The model survives the test of oblique radiative corrections. To each momentum scale there exists a range of B masses where the S, T parameters are compatible with the experiment. For instance, at a scale of 1 TeV from the S parameter the minimum mass of a charged (neutral) B is 200-350 GeV (400-550 GeV).