Discrete R-symmetries and anomaly universality in heterotic orbifolds

Nana G. Cabo Bizet*, Tatsuo Kobayashi, Damian K. Mayorga Pena, Susha L. Parameswaran, Matthias Schmitz, Ivonne Zavala Carrasco

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

We study discrete R-symmetries, which appear in the 4D low energy effective field theory derived from heterotic orbifold models. We derive the R-symmetries directly from the geometrical symmetries of the orbifolds. In particular, we obtain the corresponding R-charges by requiring that the couplings be invariant under these symmetries. This allows for a more general treatment than the explicit computations of correlation functions made previously by the authors, including models with discrete Wilson lines, and orbifold symmetries beyond plane-by-plane rotational invariance. The R-charges obtained in this manner differ from those derived in earlier explicit computations. We study the anomalies associated with these R-symmetries, and comment on the results.

Original languageEnglish
Article number098
Number of pages23
JournalJournal of High Energy Physics
Issue number2
DOIs
Publication statusPublished - 24-Feb-2014

Keywords

  • Superstrings and Heterotic Strings
  • Discrete and Finite Symmetries
  • Conformal Field Models in String Theory
  • Anomalies in Field and String Theories
  • MINIMAL STRING UNIFICATION
  • GRAND UNIFIED THEORIES
  • SIGMA-MODEL ANOMALIES
  • GRAVITATIONAL ANOMALIES
  • YUKAWA COUPLINGS
  • GAUGE ANOMALIES
  • Z(6) ORBIFOLD
  • MSSM
  • LANDSCAPE
  • HAIR

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