vix.ing · top · new · best · stats · spec

Vectorlike chiral fourth family to explain muon anomalies

2017/12/31 by Stuart Raby, Andreas Trautner · 3 citations
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Electron #Gauge (firearms) #Gauge group #Gauge symmetry #Gauge theory #Higgs boson #Lepton #Mixing (physics) #Muon #Neutrino Physics Research #Nuclear physics #Parameter space #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum mechanics #Quark #Standard Model (mathematical formulation) #hep-ph

paper · pdf · doi:10.1103/physrevd.97.095006

published as Phys. Rev. D 97, 095006 (2018) · 15 pages + Appendix, 4 figures, 4 tables; v2: added references

arxiv created 2018/01/05 · openalex publication_date 2018/05/07 · arxiv updated 2018/05/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The Standard Model (SM) is amended by one generation of quarks and leptons which are vectorlike (VL) under the SM gauge group but chiral with respect to a new U(1)_3\ensuremath-4 gauge symmetry. We show that this model can simultaneously explain the deviation of the muon g\ensuremath-2 as well as the observed anomalies in b\ensuremath→s\ensuremathμ+\ensuremathμ^\ensuremath- transitions without conflicting with the data on Higgs decays, lepton flavor violation, or Bs\ensuremath-Bs mixing. The model is string theory motivated and Grand Unified Theory compatible, i.e. UV complete, and fits the data predicting VL quarks, leptons, and a massive Z^\ensuremath' at the TeV scale, as well as \ensuremathτ\ensuremath→3\ensuremathμ and \ensuremathτ\ensuremath→\ensuremathμ\ensuremathγ within reach of future experiments. The Higgs couplings to SM generations are automatically aligned in flavor space.

Citations

Cited by