Tests of a Family Gauge Symmetry Model at 10^3 TeV Scale

TL;DR

This paper explores a U(3) family gauge symmetry model at 1000 TeV, analyzing its unique experimental signatures, constraints from flavor-changing processes, and potential detection at colliders.

Contribution

It introduces a specific family gauge symmetry model with fixed gauge coupling and boson spectrum, and studies its experimental implications and constraints.

Findings

Current flavor-changing process constraints limit the model's parameters.

Predicted signatures could be observable at LHC and future lepton colliders.

The gauge boson exchange leads to family number violations.

Abstract

Based on a specific model with U(3) family gauge symmetry at $10^3$ TeV scale, we show its experimental signatures to search for. Since the gauge symmetry is introduced with a special purpose, its gauge coupling constant and gauge boson mass spectrum are not free. The current structure in this model leads to family number violations via exchange of extra gauge bosons. We investigate present constraints from flavor changing processes and discuss visible signatures at LHC and lepton colliders.