G. Aad, B. Abbott, K. Abeling, N. J. Abicht, B. Ali, K. Augsten, B. Bergmann, T. Billoud, H. Day-Hall, Z. Hubáček et al.: 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. Physical Review D 108(9), 092007 (2023). doi:10.1103/PhysRevD.108.092007