Phys.Rev.D, 114, 2, 026011 (2026)
Symmetries of nonmaximal supergravities with higher-derivative corrections
Yi Pang1,2 and Robert Saskowski1
1 Center for Joint Quantum Studies and Department of Physics, School of Science, Tianjin University, Tianjin 300350, China.
2 Peng Huanwu Center for Fundamental Theory, Hefei, Anhui 230026, China.
* pangyi1@tju.edu.cn, robert_saskowski@tju.edu.cn
Abstract
We consider hidden symmetries arising from U duality in the dimensional reduction of nonmaximal higher-derivative supergravities to three dimensions. In particular, we consider the G2(2) symmetry of minimal five-dimensional supergravity and the O(d+p+1,d+1) symmetry of bosonic and heterotic string theory on Td. 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,R) in pure five-dimensional gravity and O(4,4) in the STU model.
