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Four-derivative couplings and BPS dyons in heterotic CHL orbifolds
Three-dimensional string models with half-maximal supersymmetry are believedto be invariant under a large U-duality group which unifies the S and Tdualities in four dimensions. We propose an exact, U-duality invariant formulafor four-derivative scalar couplings of the form $F(\Phi) (\nabla\Phi)^4$ i...
Autores principales: | , , |
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Lenguaje: | eng |
Publicado: |
2017
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.21468/SciPostPhys.3.1.008 http://cds.cern.ch/record/2244888 |