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$F^{4}$ Terms in N=4 String Vacua
We discuss $F_{\mu\nu}^4$ terms in toroidal compactifications of type-I and heterotic SO(32) string theory. We give a simple argument why only short BPS multiplets contribute to these terms at one loop, and verify heterotic-type-I duality to this order. Assuming exact duality, we exhibit in the hete...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
1996
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/S0920-5632(97)00079-0 http://cds.cern.ch/record/315610 |