Anomalous U(1) gauge symmetries and heterotic-typeI/II string duality
Hans Peter Nilles
TL;DR
This paper reviews anomalous U(1) gauge symmetries in heterotic and type I/II string theories, exploring their properties, duality conjectures, and potential phenomenological implications.
Contribution
It provides a comparative analysis of anomalous U(1) symmetries across different string theories and discusses the conjectured heterotic-type I/II duality.
Findings
Heterotic theories typically have a single anomalous U(1).
Open string theories can have multiple anomalous U(1) symmetries.
The paper discusses the status of heterotic-type I/II duality and phenomenological applications.
Abstract
Anomalous U(1) gauge symmetries can appear both in heterotic and type I string theories. In the heterotic case we find a single anomalous U(1), while in open string theories several such symmetries can appear. Nonetheless, there is a conjectured duality symmetry that might connect these two theories. We review the properties of anomalous gauge symmetries in various string theories as well as the status of this heterotic-type I/II duality. We also comment on the possible phenomenological applications of anomalous gauge symmetries in string theory.
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Taxonomy
TopicsBlack Holes and Theoretical Physics · Quantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies