TY - GEN T1 - Search for a new pseudoscalar decaying into a pair of muons in events with a top-quark pair at $\sqrt{s} = 13$ TeV with the ATLAS detector UR - http://dx.doi.org/10.1103/PhysRevD.108.092007 PY - 2023/04/27 AU - Collaboration ATLAS ED - Y2 - 2025/11/20 ER -