Asymptotically safe Pati-Salam theory

E. Molinaro, F. Sannino, Z. W. Wang*

*Corresponding author for this work

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Abstract

We provide an asymptotically safe Pati-Salam embedding of the standard model. Safety is achieved by adding to the theory gauged vectorlike fermions and by employing recently developed large number-of-flavor techniques and results. We show that the gauge, scalar quartic and Yukawa couplings achieve an interacting ultraviolet fixed point below the Planck scale. The minimal model is a relevant example of a standard model extension in which unification of all type of couplings occurs because of a dynamical principle, i.e., the presence of an ultraviolet fixed point. This extension differs from the usual grand unified theories scenario in which only gauge couplings unify and become free with the remaining couplings left unsafe. We find renormalization group flow solutions that match the standard model couplings values at low energies allowing for realistic safe extensions of the standard model.

Original languageEnglish
Article number115007
JournalPhysical Review D
Volume98
Issue number11
Number of pages13
ISSN2470-0010
DOIs
Publication statusPublished - 1. Dec 2018

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