Dark coloured scalars impact on single and di-Higgs production at the LHC Pedro Gabriel, Margarete Mühlleitner, Daniel Neacsu and Rui Santos Eur. Phys. J. C, 85 1 (2025) 94 Published online: 27 January 2025 DOI: 10.1140/epjc/s10052-025-13741-w