No one has ever probed a particle more stringently than this. In a new experiment, scientists measured a magnetic property of the electron more carefully than ever before, making the most precise ...

A neglected force produced by neutrinos and other particles helps atomic physics measurements align with predictions of the standard model.

A tiny discrepancy in particle physics has loomed for decades as an exciting possible crack in one of science’s most ...

A major obstacle in calculating the muon’s behavior is the strong force, the most powerful of the four fundamental forces, along with gravity, electromagnetism, and the weak force. It binds quarks ...