2003/03/31 by Qaisar Shafi, Zurab Tavartkiladze
Physics and Astronomy · #Brane #Dimension (graph theory) #Extra dimensions #Higgs boson #Higgs sector #Neutrino #Neutrino Physics Research #Orbifold #Particle physics theoretical and experimental studies #Phenomenology (philosophy) #Quantum Chromodynamics and Particle Interactions #Symmetry (geometry) #hep-ph
paper · pdf · doi:10.1016/s0550-3213(03)00489-9
published as Nucl.Phys.B665:469-486,2003 · Version to appear in Nucl. Phys. B
openalex publication_date 2003/07/07 · arxiv created 2003/07/13 · arxiv updated 2014/11/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present a five dimensional supersymmetric SO(10) model compactified on an orbifold S(1)/Z2\tm Z2'. The gauge symmetry G422≡ SU(4)c\tm SU(2)L\tm SU(2)R, realized on one of the fixed points (branes), is spontaneously broken to the MSSM via the higgs mechanism. Employing a flavor \cal U(1) symmetry and suitably extending the 'matter' sector enables us to understand large mixings in the neutrino sector via a democratic approach, versus the small CKM mixings. A residual \cal R-symmetry on G422 brane helps eliminate the troublesome dimension five nucleon decay, while the \cal U(1) symmetry plays an essential role in suppressing dimension six decay. For rare leptonic decays we expect \rm BR(μ→ e\ga)∼ \rm BR(τ→ μ\ga)∼ \rm BR(τ→ e\ga).