Asymptotically safe standard model extensions?

Giulio Maria Pelaggi, Alexis D. Plascencia, Alberto Salvio, Francesco Sannino, Juri Smirnov, Alessandro Strumia

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Abstrakt

We consider theories with a large number NF of charged fermions and compute the renormalization group equations for the gauge, Yukawa and quartic couplings resummed at leading order in 1=NF. We construct extensions of the standard model where SU(2) and/or SU(3) are asymptotically safe. When the same procedure is applied to the Abelian U(1) factor, we find that the Higgs quartic can not be made asymptotically safe and stay perturbative at the same time.

OriginalsprogEngelsk
Artikelnummer095013
TidsskriftPhysical Review D
Vol/bind97
Udgave nummer9
Antal sider12
ISSN2470-0010
DOI
StatusUdgivet - 2018

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  • Citationsformater

    Pelaggi, G. M., Plascencia, A. D., Salvio, A., Sannino, F., Smirnov, J., & Strumia, A. (2018). Asymptotically safe standard model extensions? Physical Review D, 97(9), [095013]. https://doi.org/10.1103/PhysRevD.97.095013