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

Abstract

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}ε_{10}ε_{10}) factor.

20 pages, 3 figures; corrected typos

References in corpus (1)

• Chiral splitting and world-sheet gravitinos in higher-derivative string amplitudes

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