Higgs doublets, split multiplets and heterotic SU(3)(C) x SU(2)(L) x U(1)(Y) spectra

Article, Preprint English OPEN
Donagi, R. ; He, Y. ; Ovrut, B. A. ; Reinbacher, R.
  • Publisher: Elsevier
  • Journal: Physics Letters B, volume 618, issue 1-4, pages 259-264 (issn: 0370-2693)
  • Related identifiers: doi: 10.1016/j.physletb.2005.05.004
  • Subject: QC | High Energy Physics - Theory | Mathematics - Algebraic Geometry | Nuclear and High Energy Physics
    arxiv: General Relativity and Quantum Cosmology | High Energy Physics::Theory | High Energy Physics::Phenomenology | Mathematics::Symplectic Geometry | High Energy Physics::Lattice

A methodology for computing the massless spectrum of heterotic vacua with Wilson lines is presented. This is applied to a specific class of vacua with holomorphic SU(5)-bundles over torus-fibered Calabi-Yau threefolds with fundamental group Z_2. These vacua lead to low energy theories with the standard model gauge group SU(3)_C x SU(2)_L x U(1)_Yand three families of quark/leptons. The massless spectrum is computed, including the multiplicity of Higgs doublets.
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