Physicists propose one-positron cyclotron to test antimatter symmetry

A new experimental concept called a one-positron cyclotron could put a central Standard Model prediction under direct scrutiny. Positrons, the antimatter twins of electrons, share the same mass but carry an opposite charge, and they also act like miniature bar magnets. The Standard Model predicts that a positron's magnetic moment should be exactly equal and opposite to that of an electron. The proposal aims to test this equality, though the work remains at the proposal stage.
What do you think a measurable difference in positron and electron magnetic moments would mean for our understanding of the universe?

