Left: inelastic interaction cross section for antitritons with the two analysis methods on an average material element of the ALICE detector as a function of the momentum $p$ at which the interaction occurs. Dashed black lines represent the default \geantf parameterisations for antitritons. Right: comparison between the results reported in the left panel and the results for \AntiHeThree inelastic cross section measured in Pb--Pb collisions at \snn = 5.02 TeV from Ref.~. Note that \AntiHeThree nuclei can be clearly identified in both TPC and TOF detectors over a much wider momentum range than \antit In both panels, boxes show the statistical and systematic uncertainties summed in quadrature.