====== KA-TP-19-2023 First shot of the smoking gun: Probing the electroweak phase transition in the 2HDM with novel searches for $A \to ZH$ in $\ell^+ \ell^- t \bar t$ and $\nu \nu b \bar b$ final states ====== Thomas Biekötter, Sven Heinemeyer, Jose Miguel No, Kateryna Radchenko, María Olalla Olea Romacho, Georg Weiglein\\ KA-TP-19-2023\\ Download: [[https://arxiv.org/abs/2309.17431 ]]