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Perturbative gravitational couplings and Siegel modular forms in $D=4, N=2$ string models
We consider four-parameter $D=4,N=2$ string models with Hodge numbers $(4,214- 12n)$ and $(4,148)$, and we express their perturbative Wilsonian gravitational coupling $F_1$ in terms of Siegel modular forms.
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| Lenguaje: | eng |
| Publicado: |
1996
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| Acceso en línea: | https://dx.doi.org/10.1016/S0920-5632(97)00314-9 http://cds.cern.ch/record/317302 |