期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 2, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP02(2014)098
关键词
Superstrings and Heterotic Strings; Discrete and Finite Symmetries; Conformal Field Models in String Theory; Anomalies in Field and String Theories
资金
- Proyecto Nacional de Ciencias Basicas Particulas y Campos (CITMA, Cuba)
- Ministry of Education, Culture, Sports, Science and Technology of Japan [25400252]
- Deutsche Forschungsgemeinschaft [Graduiertenkolleg GRK 1463, SFB-Tansregio TR33]
- European Union [PITN-GA-2009-237920]
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.
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