Integrated deuteron-to-proton (d/p) and antideuteron-to-antiproton ($\overline{\text{d}}/\overline{\text{p}}$)ratios in inelastic pp collisions as a function of the averagecharged particle multiplicity for different center-of-mass energies The average d/p ratio in AA collisions lies two times above the highest value in pp collisions (not shown). Dashed and solid lines represent the expected values from EPOS (LHC) with afterburner and the bands their uncertainties The CERN ISR value is corrected by the contribution of feed-downantiprotons estimated with an EPOS (LHC) simulation.