  Antinuclei are considered to be one of the most promising probes in the
indirect search for dark matter (DM) annihilation in space. However, in light
of recent results on the production of light antinuclei in pp collisions at the
LHC, an abundant production of light (anti)nuclei is also expected from
Standard Model (SM) collisions of primary cosmic rays with the interstellar
medium. Hence further precise measurements are required to constrain the
production models of antinuclei in SM collisions to be sensitive to additional
DM annihilation events. The most recent results of the ALICE collaboration on
the production of antideuterons ($\overline{\mathrm{d}}$) and antihelium-3
($^3\overline{\text{He}}$) in proton-proton (pp) and proton-lead (p--Pb)
collisions are shown. These results provide valuable input for state-of-the-art
calculations of the production models currently used to estimate the SM
background to DM searches.

Nuclear Experiment;High Energy Physics - Experiment