Observability of an ultraheavy diquark decaying into vectorlike quarks at the LHC. Daniel C. Costache, Calin Alexa, Anca M. Dinu, Ioan M. Dinu, Ioana Duminica, Matei S. Filip, Gabriel C. Majeri. In: PHYSICAL REVIEW D, 22 June 2026, DOI: 10.1103/qxhl-4pqz.