The particles that are in an atom: protons, neutrons and electrons The particles that are in protons and neutrons: quarks The four fundamental forces: gravity, electromagnetism, the strong force and ...

Explore the standard model of particle physics and its implications as discoveries challenge long-held theories. Fermilab’s Tevatron, the largest particle accelerator in the United States, was shut ...

New results from the MicroBooNE experiment at Fermilab found no evidence of a hypothetical fourth flavor of neutrino ...

Scientists have taken a major step toward solving a long-standing mystery in particle physics, by finding no sign of the ...

Two papers challenged the existence of theorized particles called sterile neutrinos that might account for mysteries like the ...

A decade-long investigation into puzzling neutrino behavior has now ruled out one of the most widely discussed explanations: ...

Why do neutrinos, these elementary particles, sometimes seem to act in such a puzzling way? For decades, physicists have been ...

Physicists have nailed a fiendishly difficult measurement — the mass of the fundamental particle the W boson. The result, from the CMS experiment at the Large Hadron Collider (LHC), is in line with ...

"Precision in these measurements is critical, as even subtle discrepancies could signal deviations from the model — ...