Charged Higgs induced 5 and 6 lepton signatures from heavy neutrinos at the LHC Arindam Das, Shinya Kanemura and Prasenjit Sanyal Eur. Phys. J. C, 83 6 (2023) 454 Published online: 01 June 2023 DOI: 10.1140/epjc/s10052-023-11656-y