Discrete gauge symmetries in global intersecting D-brane models constrain the exact form of the perturbative as well as non-perturbative superpotential. We derive the complete set of conditions on the existence of discrete Zn gauge symmetries on toroidal orbifolds, T6/ZN and T6/Z2 × Z2M, with fractional or rigid D6-branes on tilted tori, for which global models of particle physics are known. Several examples of global left-right symmetric and Pati-Salam models are presented. Some discrete 'stringy' Zn symmetries are trivial from the field theory point of view, while others have not been identified before.
CITATION STYLE
Honecker, G., & Staessens, W. (2013). To tilt or not to tilt: Discrete gauge symmetries in global intersecting D-brane models. Journal of High Energy Physics, 2013(10). https://doi.org/10.1007/JHEP10(2013)146
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