Covariant N=2 heterotic string in four dimensions

Details Covariant N=2 heterotic string in four dimensions Covariant N=2 heterotic string in four dimensions

2006-11-09

arxiv.org/abs/hep-th/0611105v1

JHEP 0703:082,2007

Physics

High Energy Physics

High Energy Physics - Theory

11+3 pages

Scientific paper

10.1088/1126-6708/2007/03/082

We construct a covariant formulation of the heterotic superstring on K3 times T^2 with manifest N=2 supersymmetry. We show how projective superspace appears naturally in the hybrid formulation giving a (partially) geometric interpretation of the harmonic parameter. The low-energy effective action for this theory is given by a non-standard form of N=2 supergravity which is intimately related to the N=1 old-minimal formulation. This formalism can be used to derive new descriptions of interacting projective superspace field theories using Berkovits' open string field theory and the the heterotic Berkovits-Okawa-Zwiebach construction.

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