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arXiv · 2603.21459

Symmetries of non-maximal supergravities with higher-derivative corrections

Yi Pang·Robert J. Saskowski
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Abstract

We consider hidden symmetries arising from U-duality in the dimensional reduction of non-maximal higher-derivative supergravities to three dimensions. In particular, we consider the $G_{2(2)}$ symmetry of minimal five-dimensional supergravity and the $O(d+p+1,d+1)$ symmetry of bosonic and heterotic string theory on $T^d$. Using a group theory argument, we show that the higher-derivative corrections explicitly break all hidden symmetry enhancements. As special cases, this also implies that higher-derivative corrections prevent the symmetry enhancement to $SL(3,\mathbb R)$ in pure five-dimensional gravity and $O(4,4)$ in the STU model.

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Yi Pang, Robert J. Saskowski. 2026-03-23. Symmetries of non-maximal supergravities with higher-derivative corrections. https://doi.org/10.1103/yj2x-v42c

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