Mar 23 – 27, 2020
Brooklyn, NY
US/Eastern timezone

Grand Unified origin of gauge interactions and families replication in the Standard Model

Mar 26, 2020, 9:00 AM
30m
Brooklyn, NY

Brooklyn, NY

333 Adams Street, Brooklyn, New York 11201, USA
Contributed Talk Electroweak Physics and Beyond the Standard Model Electroweak Physics and Beyond the Standard Model

Speaker

Roman Pasechnik (Lund university)

Description

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 flavour physics and Grand Unified Theory (GUT) concepts. This framework is suggested by the gauge Left-Right-Color-Family Grand Unification under the exceptional E8 symmetry that, via an orbifolding mechanism, yields a supersymmetric chiral 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.

Primary authors

Roman Pasechnik (Lund university) Dr Antonio Morais (Aveiro university) Dr Werner Porod (Wurzburg university)

Presentation materials

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