Fibering heterotic compactification data over moduli space organizes deformations as components of universal curvatures and incorporates α'^2 supersymmetry corrections.
alpha'-Corrections to Heterotic Superstring Effective Action Revisited
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abstract
In this letter we establish that the supersymmetric R^2 effective action for the heterotic string, obtained from the supersymmetrisation of the Lorentz Chern-Simons term, is to order $\alpha'$ equivalent modulo field redefinitions to heterotic string effective actions computed by different methods.
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2026 1verdicts
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Universal geometry as an organising principle for heterotic moduli
Fibering heterotic compactification data over moduli space organizes deformations as components of universal curvatures and incorporates α'^2 supersymmetry corrections.