Discrete R-symmetries and Anomaly Universality in Heterotic Orbifolds

Nana Geraldine Cabo Bizet; Tatsuo Kobayashi; Damian Kaloni Mayorga Pena; Susha L. Parameswaran; Matthias Schmitz; Ivonne Zavala

arXiv · 1308.5669

Discrete R-symmetries and Anomaly Universality in Heterotic Orbifolds

Nana Geraldine Cabo Bizet·Tatsuo Kobayashi·Damian Kaloni Mayorga Pena·Susha L. Parameswaran·Matthias Schmitz·Ivonne Zavala

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Abstract

We study discrete R-symmetries, which appear in 4D low energy effective field theory derived from hetetoric orbifold models. We derive the R-symmetries directly from geometrical symmetries of 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. Surprisingly, for the cases covered by earlier explicit computations, the R-charges differ from the previous result. We study the anomalies associated with these R-symmetries, and comment on the results.

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BibTeX RIS

Nana Geraldine Cabo Bizet, Tatsuo Kobayashi, Damian Kaloni Mayorga Pena, Susha L. Parameswaran, Matthias Schmitz, Ivonne Zavala. 2014-03-06. Discrete R-symmetries and Anomaly Universality in Heterotic Orbifolds. https://arxiv.org/abs/1308.5669

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