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The relevant part: "The ALICE analysis shows that, during Run 2 of the LHC (2015–2018), about 86 billion gold nuclei were created at the four major experiments. In terms of mass, this corresponds to just 29 picograms (2.9 ×10-11 g)."

Just need to scale it by trillions to make 1 ounce, but transmutation of lead to gold - the dream of many alchemists - is now just a by product of particle accelerators.