Large neutrino mixing with the universal strength of the Yukawa couplings

1999/06/30 by G.C. Branco, G. C. Branco, M. N. Rebelo +1 · 15 citations
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Mixing (physics) #Neutrino #Neutrino Physics Research #Neutrino oscillation #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Sterile neutrino #Yukawa potential #hep-ph

paper · pdf · doi:10.1103/physrevd.62.073004

published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 62(7) (American Physical Society) · 7 pages, ReVTeX, small comments added

arxiv created 2000/02/08 · openalex publication_date 2000/09/05 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We analyze, within the framework of universal strength for Yukawa couplings (USY), various structures for the Dirac and Majorana neutrino mass matrices giving rise, through the seesaw mechanism, to a degenerate mass spectrum. A specific USY Ansatz is presented for the charged lepton and neutrino effective mass matrix, leading to quasi-degenerate neutrinos and a leptonic mixing matrix which provides a large angle solution for both the atmospheric and solar neutrino problems.

Citations

• Predicting VCKM with universal strength of Yukawa couplings
• Mikheyev-Smirnov-Wolfenstein enhancement of oscillations as a possible solution to the solar-neutrino problem
• Can neutrinos be degenerate in mass?
• Atmospheric neutrino oscillation and a phenomenological lepton mass matrix
• Neutrino oscillations and stellar collapse
• Possible Explanation of the Solar-Neutrino Puzzle

Cited by

• Universality of Yukawa couplings confronts recent neutrino data