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The One-Loop H^2R^3 and H^2(DH)^2R Terms in the Effective Action

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arxiv 0807.3453 v2 pith:6VCVP4KK submitted 2008-07-22 hep-th

classification hep-th
keywords termsactioneffectiveepsilonone-loopalphaamplitudesconsider
verification ladder T0 review T1 audit T2 compute T3 formal
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We consider the one-loop B^2h^3 and B^4h amplitudes in type II string theory, where B is the NS-NS two-form and h the graviton, and expand to lowest order in alpha'. After subtracting diagrams due to quartic terms in the effective action, we determine the presence and structure of both an H^2R^3 and H^2(DH)^2R term. We show that both terms are multiplied by the usual (t_8t_8\pm{1/8}\epsilon_{10}\epsilon_{10}) factor.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Effective Action in M-Theory: $(DF)^4$ Superinvariants

    hep-th 2025-07 conditional novelty 6.0 of 10

    A local supersymmetry analysis reduces the 24 independent (DF)^4 terms in the M-theory eight-derivative action to 10 free parameters, consistent with scattering amplitude results.

  2. Type IIB at eight derivatives: Five-Point Axio-Dilaton Couplings

    hep-th 2025-07 conditional novelty 6.0 of 10

    The complete five-point, eight-derivative effective action of Type IIB in the gravity plus axio-dilaton sector is derived, with identical tree-level and one-loop kinematics and full SL(2,Z) modular completion.

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