Observation of tt[over ¯] Production in Pb+Pb Collisions at sqrt[s_{NN}]=5.02 TeV with the ATLAS Detector. - Aad G; Aakvaag E; Abbott B; Abdelhameed S; Abeling K; Abicht NJ; Abidi SH; Aboelela M; Aboulhorma A; Abramowicz H; Abulaiti Y; Acharya BS; et al. (Physical review letters, 2025)