Electrons are really, really round.
A new measurement confirms the subatomic particle’s spherical shape to a record level of exactness, physicists report in the July 7 Science.
That near-perfect roundness deepens the mystery behind how the universe came to be filled with matter as opposed to its counterpart, antimatter. Any asymmetry in the electron’s shape, namely the distribution of the particle’s electric charge, would point to a related asymmetry in the laws of nature, one that could explain this feature of the cosmos.
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