2009/09/12 by Pran Nath, Raza M. Syed, Raza M Syed · 27 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Electroweak interaction #Fermion #Gauge (firearms) #Higgs boson #Higgs sector #Lepton #Neutrino #Neutrino Physics Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quark #Standard Model (mathematical formulation) #Yukawa potential #hep-ph
paper · pdf · doi:10.1103/physrevd.81.037701
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 81(3) (American Physical Society) · 34 page, 1 figure
arxiv created 2009/09/12 · openalex publication_date 2010/02/09 · arxiv updated 2015/05/14 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Fermion mass generation for the third generation is considered within a unified Higgs model with a single pair of vector-spinor 144+144 of Higgs multiplets. Extending a previous work it is shown that much larger masses can arise for all the third generation fermions from mixing with 45 and 120 matter multiplets via the cubic couplings 16\ifmmode⋅\else\textperiodcentered\fi45\ifmmode⋅\else\textperiodcentered\fi144 and 16\ifmmode⋅\else\textperiodcentered\fi120\ifmmode⋅\else\textperiodcentered\fi144 in addition to the quartic couplings. Further, it is found that values of tan\ensuremathβ as low as 10 can allow for a b\ensuremath-\ensuremathτ\ensuremath-t unification consistent with the current data. The quartic and cubic couplings naturally lead to Dirac as well as Majorana neutrino masses necessary for the generation of a seesaw neutrino mass of the right size for the tau neutrino.