1999/01/06 by Takeo Matsushima, Matsushima, Takeo
Physics and Astronomy · #Atomic and Subatomic Physics Research #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9901234
37 pages, 3 figures
openalex publication_date 1999/01/06 · arxiv created 1999/02/05 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A fermion-boson-type composite model for quarks and leptons is proposed. Elementary fields are only one kind of spin-1/2 and spin-0 preon. Both are in the global supersymmetric pair with the common electric charge of e/6 and belong to the fundamental representations of (3,2,2) under the spontaneously unbroken SU(3)C*SU(2)L*SU(2)R gauge symmetry induced necessarily by the concept of ``Cartan connection'' equipped with ``Soldering Mechanism''. Preons are composed into subquarks which are ``intermediate clusters'' towards quarks and leptons. The mechanism of making higher generations is obtained by adding neutral scalar subquark composed of a preon-antipreon pair in the 3-state of SU(2)L,R. This model predicts the CKM matrix elements : |Vts|=2.6*10-2,|Vtd|=1.4*10-3; the neutral pseudoscalar meson mass differences : DeltaMD≈10-14 GeV, DeltaMBs≈10-11 GeV,DeltaMTu≈10^(-10∼-9) GeV and ΔMTc≈10^(-8∼-7) GeV; the phases of CP violation : thetaK=θD=θBs=θTc ≃(1/2)θBd≃(1/2)θTu.This model also suggests that ΔM2≈10(-8∼-7)eV2 with large mixing angle in (νe,νμ)-oscillation.