Large-NF expansion for the Yukawa coupling

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11 Citations (Scopus)


By enlarging the number of fermion species and sclar fields, we generalize the Yukawa-Higgs sector of the standard model. We solve this model to leading order in a 1NF expansion. We study the behavior of the fermion mass and the width when they are below the cutoff scale of the theory. Other Yukawa-Higgs models with different chiral structures are also studied. We find that the mass of the fermion is finite and is below the cutoff scale for any finite on-shell Yukawa coupling in the chiral models.

Original languageEnglish
Pages (from-to)1547-1554
Number of pages8
JournalPhysical Review D
Issue number5
Publication statusPublished - 1991
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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