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arXiv · 2409.08984

Higher-derivative supersymmetric effective field theories

Osmin Lacombe·Lorenzo Paoloni·Francisco G. Pedro
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Abstract

In this paper we study higher-derivative supersymmetric effective field theories focusing on the systematic procedure for the elimination of ghosts from the spectrum. Particular attention is paid to the auxiliary fields, for which the higher-derivative terms induce non-algebraic equations of motion. By employing field redefinitions or the reduction of order procedure (both in component and superfield language) we show that the auxiliary fields remain non-dynamical in the EFT and that on shell they give rise to both derivative and non-derivative corrections to the scalar action. These methods are applied to the search for a SUSY embedding of the DBI action and to the dimensional reduction of HD terms for the K\"ahler moduli in type IIB string compactifications.

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Osmin Lacombe, Lorenzo Paoloni, Francisco G. Pedro. 2024-09-13. Higher-derivative supersymmetric effective field theories. https://doi.org/10.1007/jhep03(2025)059

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