2007/03/29 by Ching-Ming Chen, Tianjun Li, V. E. Mayes +2 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Electron #Gauge (firearms) #Grand Unified Theory #Lepton #Minimal Supersymmetric Standard Model #Neutrino #Nuclear physics #Orientifold #Particle physics #Particle physics theoretical and experimental studies #Physics #Quark #Seesaw mechanism #Seesaw molecular geometry #Standard Model (mathematical formulation) #String (physics) #String theory #Supersymmetry #Supersymmetry breaking #Symmetry breaking #Theoretical physics #hep-ph #hep-th
paper · pdf · doi:10.1016/j.physletb.2008.06.024
published as Phys.Lett.B665:267-270,2008 · RevTex4, 4 pages, 4 tables
arxiv created 2007/03/29 · openalex publication_date 2008/06/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We describe a three-family Pati–Salam model from intersecting D6-branes in type IIA string theory on the T6/(Z2×Z2) orientifold which is of strong phenomenological interest. In the model, the gauge coupling unification is achieved naturally at the string scale, and the gauge symmetry can be broken down to the Standard Model (SM) close to the string scale. Moreover, we find that it is possible to obtain the correct SM quark masses and mixings, and the tau lepton mass. Additionally, neutrino masses and mixings may be generated via the seesaw mechanism. Furthermore, we calculate the supersymmetry breaking soft terms, and the corresponding low-energy supersymmetric particle spectra which may potentially be tested at the Large Hadron Collider (LHC), and provide the observed dark matter density.