We compute the six-dimensional effective action of the heterotic string compactified on K3 for the standard embedding and for a class of backgrounds with line bundles and appropriate Yang-Mills fluxes. We compute the couplings of the charged scalars and the bundle moduli as functions of the geometrical K3 moduli from a Kaluza-Klein analysis. We derive the D-term potential and show that in the flux backgrounds U (1) vector multiplets become massive by a Stückelberg mechanism.

6D effective action of heterotic compactification on K3 with nontrivial gauge bundles

VALANDRO, ROBERTO
2012

Abstract

We compute the six-dimensional effective action of the heterotic string compactified on K3 for the standard embedding and for a class of backgrounds with line bundles and appropriate Yang-Mills fluxes. We compute the couplings of the charged scalars and the bundle moduli as functions of the geometrical K3 moduli from a Kaluza-Klein analysis. We derive the D-term potential and show that in the flux backgrounds U (1) vector multiplets become massive by a Stückelberg mechanism.
JOURNAL OF HIGH ENERGY PHYSICS
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11368/2874211
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