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Article overview
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Higher-Derivative Gravity in String Theory | Kristin Forger
; Burt A. Ovrut
; Stefan J. Theisen
; Daniel Waldram
; | Date: |
21 May 1996 | Journal: | Phys.Lett. B388 (1996) 512-520 | Abstract: | We explicitly extract the structure of higher-derivative curvature-squared terms at genus 0 and 1 in the d=4 heterotic string effective action compactified on symmetric orbifolds by computing on-shell S-matrix superstring amplitudes. In particular, this is done within the context of calculating the graviton 4-point amplitude. We also discuss the moduli-dependent gravitational threshold corrections to the coupling associated with the CP even quadratic curvature terms. | Source: | arXiv, hep-th/9605145 | Services: | Forum | Review | PDF | Favorites |
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