Higher-derivative couplings in string theory: five-point contact terms

2019/12/23 by Liu, James T., Minasian, Ruben · 6 citations
#FOS: Physical sciences #High Energy Physics - Theory (hep-th)

paper · doi:10.48550/arxiv.1912.10974

Abstract

We compute the tree-level H²R³ couplings of type II strings and provide some basic tests of the couplings by considering both K3 and Calabi-Yau threefold compactifications. Curiously, additional kinematical structures show up at tree level that are not present in the one-loop couplings. This has interesting implications for type II supersymmetry as well as SL(2, \mathbb Z) duality in type IIB strings.

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• Type IIA supergravity at one loop: α'³ terms in the metric-dilaton-RR one-form sector
• Effective Action in M-Theory: (DF)⁴ Superinvariants
• Type IIB at eight derivatives: Five-Point Axio-Dilaton Couplings
• Effective action of bosonic string theory at order α'³

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