Figure 7

Ratio of anti-particle to particle efficiency based on GEANT4 and a modified version of GEANT3 including an empirical model to describe the hadronic interaction of anti-nuclei for (anti-)deuterons (left) and for (anti-)$\rm ^3He$ (right). The estimate of the systematic uncertainty for the hadronic interaction based on the difference between the two models is indicated by the blue band.