In the everyday world that humans experience, objects behave in a predictable way, explained by classical physics. One of the important aspects of classical physics is that nothing travels faster than ...

Quantum experiments keep stripping away our everyday intuitions, replacing them with a picture of reality in which cause, effect and even “facts” depend on how we look. New tests of entanglement, ...

Physicists have shown that particles produced in collimated sprays called jets retain information about their origins in subatomic particle smashups. Physicists at the U.S. Department of Energy's (DOE ...

In double-slit interference experiment, photons can pass through either the upper or lower path, with detectors behind each path determining the exact route taken by the photons. At the same time, an ...

When an energetic quark or gluon gets knocked free during a proton-proton collision, this free "parton" first generates a shower of other partons, which then "fragment" to form hadrons (h) such as ...