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On $R^4$ threshold corrections in IIB string theory and (p,q) string instantons
We obtain the full non-perturbative thresholds of $R^4$ terms in IIB string theory compactified to eight and seven dimensions. They are given by the perturbative results plus a sum over D-instantons and (p,q) string instantons. The thresholds are shown to be U-duality invariant. They are given by a...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
1997
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/S0550-3213(97)00645-7 http://cds.cern.ch/record/329197 |