“All of our observations find a complete symmetry between matter and antimatter, which is why the universe should not actually y exist,” Christian Smorra, the study’s lead author, said in a statement. “An asymmetry must exist here somewhere but we simply do not understand where the difference is. What is the source of the symmetry break?”
Publication
C. Smorra et al., A parts-per-billion measurement of the antiproton magnetic moment, Nature 550, 371-374, 19 October 2017,
DOI:10.1038/nature24048