TY - GEN AU - Aad, Georges AU - Rodríguez Chala, Mikael AU - Atlas Collaboration, / PY - 2023 UR - https://hdl.handle.net/10481/91344 AB - A search for a new pseudoscalar a-boson produced in events with a top-quark pair, where the a-boson decays into a pair of muons, is performed using √s=13  TeV pp collision data collected with the ATLAS detector at the LHC, corresponding to an... LA - eng PB - American Physical Society TI - Search for a new pseudoscalar decaying into a pair of muons in events with a top-quark pair at √s=13 TeV with the ATLAS detector DO - 10.1103/PhysRevD.108.092007 ER -