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Infrared divergences and harmonic anomalies in the two-loop superstring effective action
We analyze the pertubative contributions to the $D^4 R^4$ and $D^6 R^4$ couplings in the low-energy effective action of type II string theory compactified on a torus $T^d$, with particular emphasis on two-loop corrections. In general, it is necessary to introduce an infrared cut-off $\Lambda$ to sep...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
2015
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| Acceso en línea: | https://dx.doi.org/10.1007/JHEP12(2015)102 http://cds.cern.ch/record/2058419 |