Searching for exotic Higgs bosons from top quark decays at the HL-LHC Gautam Bhattacharyya, Indrani Chakraborty, Dilip Kumar Ghosh, Tapoja Jha and Gourab Saha Eur. Phys. J. C, 84 9 (2024) 927 Published online: 14 September 2024 DOI: 10.1140/epjc/s10052-024-13274-8