English

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

High Energy Physics - Phenomenology 2019-09-04 v2

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)Z_{2}^{(1)}\times Z_{2}^{(2)} discrete and U1XU_{1X} gauge family symmetries, while the matter sectors of the SM are extended by means of SU2LSU_{2L}-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 ZZ^{\prime } 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.

Keywords

Cite

@article{arxiv.1901.09552,
  title  = {Phenomenology of an extended IDM with loop-generated fermion mass hierarchies},
  author = {A. E. Cárcamo Hernández and Sergey Kovalenko and Roman Pasechnik and Ivan Schmidt},
  journal= {arXiv preprint arXiv:1901.09552},
  year   = {2019}
}

Comments

Version accepted for publication in EPJC. arXiv admin note: text overlap with arXiv:1901.02764