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roman pasechnik

Roman Pasechnik

Senior lecturer

roman pasechnik

Asymptotic ultraviolet-safe unification of gauge and Yukawa couplings : The exceptional case

Author

  • Giacomo Cacciapaglia
  • Aldo Deandrea
  • Roman Pasechnik
  • Zhi Wei Wang

Summary, in English

The ultimate dream of unification models consists in combining both gauge and Yukawa couplings into one unified coupling. This is achieved by using a supersymmetric exceptional E6 gauge symmetry together with asymptotic unification in compact five-dimensional space-time. The ultraviolet fixed point requires exactly three fermion generations: one in the bulk, and the two light ones localised on the SO(10) boundary in order to cancel gauge anomalies. A second option allows to preserve baryon number and to lower the compactification scale down to the typical scales of the intermediate Pati-Salam gauge theory.

Department/s

  • Particle and nuclear physics

Publishing year

2024-05

Language

English

Publication/Series

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Volume

852

Document type

Journal article

Publisher

Elsevier

Topic

  • Subatomic Physics

Keywords

  • E grand unification
  • Pati-Salam theory
  • Ultraviolet fixed point

Status

Published

ISBN/ISSN/Other

  • ISSN: 0370-2693