SO(32) heterotic line bundle models

Hajime Otsuka*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)


    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 languageEnglish
    Article number45
    JournalJournal of High Energy Physics
    Issue number5
    Publication statusPublished - 2018 May 1


    • Superstring Vacua
    • Superstrings and Heterotic Strings

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics


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