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.

Detalles Bibliográficos
Autor principal: Lópes-Cardoso, G
Lenguaje:eng
Publicado: 1996
Materias:
Particle Physics - Theory
Acceso en línea:https://dx.doi.org/10.1016/S0920-5632(97)00314-9
http://cds.cern.ch/record/317302
Descripción
Sumario: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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