Critical behavior in a non-asymptotically free version of the SU(3)c×SU(2)L×U(1)Y model
(1989) Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. B228, p. 370 (1989)
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- Abstract
- The non-perturbative unification of the SU(3)c⊗SU(2)L⊗U(1)Y model, a la Maiani, Parisi and Petronzio is described in terms of critical exponents at a common Landau singularity. The exponents are evaluated using renormalization group techniques. Numerical integrations of the renormalization group equations are performed, including three-loop diagonal effects. The currently accepted values of the gauge couplings αi(MW) at the weak boson mass scale are reproduced only when there are precisely eight generations of fermions with masses not bigger than the weak boson ones. A large number of Higgs doublets is favoured (NH=7±3). The unification scale is found to be around 1015 GeV.
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Alacoque, C., Deom, C., & Pestieau, J. (1989). Critical behavior in a non-asymptotically free version of the SU(3)c×SU(2)L×U(1)Y model. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, B228, 370. https://doi.org/10.1016/0370-2693(89)91561-X (Original work published 1989)