Remarks on anomalous U(1) symmetries in string theory

Details Remarks on anomalous U(1) symmetries in string theory Remarks on anomalous U(1) symmetries in string theory

2000-03-10

arxiv.org/abs/hep-ph/0003102v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, Latex, Contribution to the Proceedings of COSMO-99, International Workshop on Particle Physics and the Early Universe

Scientific paper

Anomalous U(1) gauge symmetries appear frequently both in heterotic and type I/type II string theory. In the heterotic case we find at most a single anomalous U(1), while in open string theories several such symmetries can appear. We review the properties of the anomalous gauge bosons, the appearance of Fayet-Iliopoulos terms and the concept of heterotic-type I duality. Phenomenological applications of these symmetries might be different in the type I/type II case compared to the heterotic one.

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