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Roman Pasechnik

Senior lecturer

Typical working day..

On a radiative origin of the Standard Model from trinification

Author

  • José Eliel Camargo-Molina
  • António P. Morais
  • Roman Pasechnik
  • Jonas Wessén

Summary, in English

In this work, we present a trinification-based grand unified theory incorporating a global SU(3) family symmetry that after a spontaneous breaking leads to a left-right symmetric model. Already at the classical level, this model can accommodate the matter content and the quark Cabbibo mixing in the Standard Model (SM) with only one Yukawa coupling at the unification scale. Considering the minimal low-energy scenario with the least amount of light states, we show that the resulting effective theory enables dynamical breaking of its gauge group down to that of the SM by means of radiative corrections accounted for by the renormalisation group evolution at one loop. This result paves the way for a consistent explanation of the SM breaking scale and fermion mass hierarchies.

Department/s

  • Department of Astronomy and Theoretical Physics

Publishing year

2016-09-01

Language

English

Publication/Series

Journal of High Energy Physics

Volume

2016

Issue

9

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Keywords

  • Effective field theories
  • GUT
  • Renormalization Group
  • Spontaneous Symmetry Breaking

Status

Published

ISBN/ISSN/Other

  • ISSN: 1029-8479