Perturbative Couplings of Vector Multiplets in $N=2$ Heterotic String Vacua

Details Perturbative Couplings of Vector Multiplets in $N=2$ Heterotic String Vacua Perturbative Couplings of Vector Multiplets in $N=2$ Heterotic String Vacua

1995-04-04

arxiv.org/abs/hep-th/9504006v1

Nucl.Phys.B451:53-95,1995

Physics

High Energy Physics

High Energy Physics - Theory

44 pages, latex

Scientific paper

10.1016/0550-3213(95)00291-Y

We study the low-energy effective Lagrangian of $N=2$ heterotic string vacua at the classical and quantum level. The couplings of the vector multiplets are uniquely determined at the tree level, while the loop corrections are severely constrained by the exact discrete symmetries of the string vacuum. We evaluate the general transformation law of the perturbative prepotential and determine its form for the toroidal compactifications of six-dimensional $N=1$ supersymmetric vacua.

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