Family mass hierarchy from universal seesaw mechanism

Aharon Davidson and Kameshwar C. Wali
Phys. Rev. Lett. 60, 1813 – Published 2 May 1988
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Abstract

The ‘‘universal seesaw mechanism,’’ which accounts for me,u,dmW, predicts mνLmνRme2. 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) mPQmνLmW2 sets the Peccei-Quinn mass scale.

  • Received 25 January 1988

DOI:https://doi.org/10.1103/PhysRevLett.60.1813

©1988 American Physical Society

Authors & Affiliations

Aharon Davidson and Kameshwar C. Wali

  • Physics Department, Syracuse University, Syracuse, New York 13244

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Issue

Vol. 60, Iss. 18 — 2 May 1988

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