Family mass hierarchy from universal seesaw mechanism

Aharon Davidson, Kameshwar C. Wali

Research output: Contribution to journalArticlepeer-review

58 Scopus citations


The universal seesaw mechanism which accounts for me,u,dmW, predicts m Lm Rme2. Combined with an axial-vector symmetry principle, this mechanism allows for the coeexistence of heavy (mW) families without appeal to a hierarchy in Yukawa couplings and without introduction of additional mass scales. It then follows that (i) the physical right-handed heavy (light) ordinary fermions are mostly SU(2)R singlets (doublets), (ii) there is no analogous neutrino mass hierarchy, and (iii) mPQmL mW2 sets the Peccei-Quinn mass scale.

Original languageEnglish
Pages (from-to)1813-1816
Number of pages4
JournalPhysical Review Letters
Issue number18
StatePublished - 1 Jan 1988
Externally publishedYes


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