Chiral Yukawa models in the planar limit

George Bathas, Herbert Neuberger

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We consider the most general renormalizable chiral Yukawa model with SU(3)color replaced by SU(Nc), SU(2)L replaced by SU(Nw) and U(1)Y replaced by U(1)Nw-1 in the limit Nc → ∞, Nw → ∞ with the ρ{variant}= Nw Nc≠0, ∞ held fixed. Since for Nw≥3 only one renormalizable Yukawa coupling per family exists and there is no mixing between families the limit is appropriate for the description of the effects of a heavy top quark when all the other fermions are taken to be massless. A rough estimate of the triviality bound on the Yukawa coupling is equivalent to mt≤1 TeV.

Original languageEnglish (US)
Pages (from-to)417-422
Number of pages6
JournalPhysics Letters B
Issue number3-4
StatePublished - Oct 29 1992

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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