Phenomenology of an extended IDM with loop-generated fermion mass hierarchies

Research output: Contribution to journalArticle

Abstract

We perform a comprehensive analysis of the most distinctive and important phenomenological implications of the recently proposed mechanism of sequential loop generation of strong hierarchies in the Standard Model (SM) fermion mass spectra. This mechanism is consistently realized at the level of renormalizable interactions in an extended variant of the Inert Higgs Doublet model, possessing the additional Z2(1)×Z2(2) discrete and U1 X gauge family symmetries, while the matter sectors of the SM are extended by means of SU2 L-singlet scalars, heavy vector-like leptons and quarks, as well as right-handed neutrinos. We thoroughly analyze the most stringent constraints on the model parameter space, coming from the Z collider searches, related to the anomaly in lepton universality, and the muon anomalous magnetic moment, as well as provide benchmark points for further tests of the model and discuss possible “standard candle” signatures relevant for future explorations.

Details

Authors
Organisations
External organisations
  • Federico Santa Maria Technical University
  • Nuclear Physics Institute of the Academy of Sciences, Czech Republic
  • Federal University of Santa Catarina
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics
Original languageEnglish
Article number610
JournalEuropean Physical Journal C
Volume79
Issue number7
Publication statusPublished - 2019 Jul
Publication categoryResearch
Peer-reviewedYes