Gildener-Weinberg two-Higgs-doublet model at two loops
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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗
Engineering topics
Eichten, Estia J.
Publications and source records attributed to Eichten, Estia J..
Higgs alignment and the top quark
There is a surprising connection between the top quark and Higgs alignment in Gildener-Weinberg multi-Higgs doublet models. Were it not for the top quark and its large mass, the coupling of the 125 GeV Higgs boson H to gauge bosons and fermions would be indistinguishable from those of the Standard Model Higgs. The top quark’s coupling to a single Higgs doublet breaks this perfect alignment in higher orders of the Coleman-Weinberg loop expansion of the effective potential. But the effect is still small, ≲O(1%), and probably experimentally inaccessible.
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗