PoS - Proceedings of Science
Volume 256 - 34th annual International Symposium on Lattice Field Theory (LATTICE2016) - Physics Beyond the Standard Model
Interacting ultraviolet completions of four-dimensional gauge theories
A. Bond,* D. Litim
*corresponding author
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Pre-published on: February 15, 2017
Published on: March 24, 2017
Abstract
Ultraviolet fixed points provide an important means to define continuum limits of quantum field
theories. In this contribution, we explain how interacting ultraviolet fixed points may arise in
general four-dimensional gauge theories coupled weakly to scalar and fermionic matter fields.
Our results derive from a systematic classification of all high- and low-energy fixed points in
general gauge theories within perturbation theory. It is shown why and how Yukawa interactions
provide a unique mechanism for the generation of perturbative ultraviolet fixed points. Phase
diagrams for simple gauge theories are discussed to illustrate the main results. Some implications
for particle physics beyond the Standard Model are indicated.
DOI: https://doi.org/10.22323/1.256.0208
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