Physicists know that their elegant theoretical description of forces and particles – the Standard Model – must be incomplete, ...

Quantum electrodynamics (QED) is the most rigorously tested quantum field theory of the standard model of particle physics 1. It describes the fundamental electromagnetic interactions of particles and ...

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 ...

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 ...

Physicists have found that an elementary particle called the W boson appears to be 0.1% too heavy — a tiny discrepancy that could foreshadow a huge shift in fundamental physics. The measurement, ...

For years, one tiny mismatch in particle physics carried outsized hopes. The muon, a heavier and short-lived cousin of the ...

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Welcome to this Physics World Particle & Nuclear Briefing bringing you the best of our recent coverage in these two areas. In this issue, we talk to Mark Thomson, who is set to take over running the ...