1994/09/30 by Naoyuki Haba, Chuichiro Hattori, M. Matsuda +3 · 1 citation
Engineering · Physics and Astronomy · #Black Holes and Theoretical Physics #Particle Accelerators and Free-Electron Lasers #Particle physics theoretical and experimental studies #hep-ph #hep-th
paper · pdf · doi:10.1143/ptp.94.233
published as Prog.Theor.Phys. 94 (1995) 233-248 · LaTeX 24 pages
arxiv created 1994/12/20 · openalex publication_date 1995/08/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
In Calabi-Yau string compactification, it is pointed out that there exists a new type of SU(5) ×U(1)2 mode (the aligned SU(5) ×U(1)2 model) in which the SU(5) differs from the standard SU(5) and also from the flipped SU(5). With the aid of the discrete symmetry suggested from Gepner model, we propose a simple and phenomenologically interesting three-generation model with the aligned SU(5) ×U(1)2 gauge symmetry. The triplet-doublet splitting problem can be solved. It is also found that there is a realistic solution for solar neutrino problem and for the µ-problem. At low energies this model is in accord with the minimal supersymmetric standard model except for the existence of singlet fields with masses of O(1) TeV.