Abstract
We search for the three-generation standard-like and/or Pati-Salam models from the SO(32) heterotic string theory on smooth, quotient complete intersection Calabi-Yau threefolds with multiple line bundles, each with structure group U(1). These models are S- and T-dual to intersecting D-brane models in type IIA string theory. We find that the stable line bundles and Wilson lines lead to the standard model gauge group with an extra U(1)B−L via a Pati-Salam-like symmetry and the obtained spectrum consists of three chiral generations of quarks and leptons, and vector-like particles. Green-Schwarz anomalous U(1) symmetries control not only the Yukawa couplings of the quarks and leptons but also the higher-dimensional operators causing the proton decay.
Original language | English |
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Article number | 45 |
Journal | Journal of High Energy Physics |
Volume | 2018 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2018 May 1 |
Keywords
- Superstring Vacua
- Superstrings and Heterotic Strings
ASJC Scopus subject areas
- Nuclear and High Energy Physics