How a mysterious particle could explain the universe’s missing antimatter Everything we see around us, from the ground beneath our feet to the most remote galaxies, is made of matter.

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

Two independent lines of evidence from the world’s most powerful particle experiments are converging on the same uncomfortable conclusion: something is producing signals that the Standard Model of ...

A team of theoretical physicists has proposed a new particle that could act as a bridge between ordinary matter and dark matter, existing in a warped fifth dimension beyond space and time. Their model ...

Everything we see around us, from the ground beneath our feet to the most remote galaxies, is made of matter. For scientists, that has long posed a problem: According to physicists’ best current ...