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.



Titolo: 6D effective action of heterotic compactification on K3 with nontrivial gauge bundles
Autori: 
VALANDRO, ROBERTO
mostra contributor esterni 
Data di pubblicazione: 2012
Rivista: 
JOURNAL OF HIGH ENERGY PHYSICS  
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.
Handle: http://hdl.handle.net/11368/2874211
Digital Object Identifier (DOI): http://dx.doi.org/10.1007/JHEP04(2012)028
Appare nelle tipologie:1.1 Articolo in Rivista

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