====== KA-TP-14-2023 Search for an invisible scalar in $t\bar{t}$ final states ====== Duarte Azevedo, Rodrigo Capucha, Pedro Chaves, Joao Bravo Martins, Antonio Onofre, Rui Santos\\ KA-TP-14-2023\\ Download: [[https://arxiv.org/abs/not.available ]]