“There’s a lot of meanings for ‘small,’” says Janet Conrad, a particle physicist at the Massachusetts Institute of Technology ...

Researchers are trying to explain their anomalous findings. Their larger experiment is an ongoing investigation of CP ...

Chinese particle physicists have announced evidence for a new subatomic particle found when the (J/psi) meson decays to a positive and negative pion pair. Although new subatomic particles are ...

A refined measurement for subatomic muons has major implications—if fundamental theories are accurate.

The peculiar wobble of a subatomic particle called a muon in a U.S. laboratory experiment is making scientists increasingly suspect they are missing something in their understanding of physics ...

Forte and colleagues fed 35 years of data from particle accelerators, including the world’s largest and most powerful machine of this kind, the LHC, to a computer algorithm that pieces proton ...

The United States' military has announced it is seeking to create powerful subatomic particle beams that would enable personnel to "see" through walls tens of yards thick and even peer deep ...

Physicists working with the LHCb experiment at CERN have proven that a subatomic particle can switch into its antiparticle and back again. The researchers were able to prove this using extremely ...

Peter Higgs, a British physicist and Nobel Prize winner whose musings on the origins of mass launched a nearly five-decade, multibillion-dollar search for a subatomic particle — later known as ...

Science Physics Particle Physics This subatomic particle’s surprising heft has weighty consequences If the W boson is heavier than expected, then a foundational idea in physics is unfinished ...

At Fermilab, US physicists are refining their measurements of this subatomic particle—which has major implications for the Standard Model.