SO(32) heterotic line bundle models

Hajime Otsuka

doi:10.1007/JHEP05(2018)045

SO(32) heterotic line bundle models

Hajime Otsuka^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

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
Article number	45
Journal	Journal of High Energy Physics
Volume	2018
Issue number	5
DOIs	https://doi.org/10.1007/JHEP05(2018)045
Publication status	Published - 2018 May 1

Keywords

Superstring Vacua
Superstrings and Heterotic Strings

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1007/JHEP05(2018)045

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AB - 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.

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SO(32) heterotic line bundle models

Abstract

Keywords

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