Effective actions near singularities

Link:

https://doi.org/10.1088/1126-6708/2003/02/053

Autor/in:

Erscheinungsjahr:

2003

Medientyp:

Text

Schlagworte:

Gauge Symmetry
Supergravity Models
Superstrings and Heterotic Strings
Supersymmetric Effective Theories

Beschreibung:

We study the heterotic string compactified on K3 × T2 near the line T = U, where the effective action becomes singular due to an SU(2) gauge symmetry enhancement. By 'integrating in' the light W± vector multiplets we derive a quantum corrected effective action which is manifestly SU(2) invariant and non-singular. This effective action is found to be consistent with a residual SL(2,ℤ) quantum symmetry on the line T = U. In an appropriate decompactification limit, we recover the known SU(2) invariant action in five dimensions. © SISSA/ISAS 2003.

Lizenz:

info:eu-repo/semantics/restrictedAccess

Quellsystem:

Forschungsinformationssystem der UHH

Interne Metadaten

Quelldatensatz: oai:www.edit.fis.uni-hamburg.de:publications/bf336bdd-ab30-4a54-8c93-2a0508e571a4