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Roman Pasechnik

Senior lecturer

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Grand unified origin of gauge interactions and families replication in the standard model

Author

  • António P. Morais
  • Roman Pasechnik
  • Werner Porod

Summary, in English

The tremendous phenomenological success of the Standard Model (SM) suggests that its flavor structure and gauge interactions may not be arbitrary but should have a fundamental first-principle explanation. In this work, we explore how the basic distinctive properties of the SM dynamically emerge from a unified New Physics framework tying together both flavor physics and Grand Unified Theory (GUT) concepts. This framework is suggested by a novel anomaly-free supersymmetric chiral E6 × SU(2)F × U(1)F GUT containing the SM. Among the most appealing emergent properties of this theory is the Higgs-matter unification with a highly-constrained massless chiral sector featuring two universal Yukawa couplings close to the GUT scale. At the electroweak scale, the minimal SM-like effective field theory limit of this GUT represents a specific flavored three-Higgs doublet model consistent with the observed large hierarchies in the quark mass spectra and mixing already at tree level.

Department/s

  • Theoretical Particle Physics

Publishing year

2021-12

Language

English

Publication/Series

Universe

Volume

7

Issue

12

Document type

Journal article

Publisher

MDPI AG

Topic

  • Subatomic Physics

Keywords

  • Grand unified theories
  • Phenomenology of New Physics
  • Supersymmetry

Status

Published

ISBN/ISSN/Other

  • ISSN: 2218-1997