Quarks are elementary particles that are the building blocks of all visible matter in the universe. Explore them in more detail here.

What if time were the only truly fundamental dimension of our Universe? A recent theory proposes a radically different vision ...

Thus, all three quarks in a baryon are of different colors, and a meson must contain a colored quark and an antiquark of the corresponding anticolor. Gluons and the strong force.

What happens when the smallest building blocks of matter refuse to play by the rules of traditional physics? For decades, ...

From living matter to molecules to elementary particles, the world is made of “chiral” objects that differ from their ...

Still, the different approaches provide a rough agreement on where the proton's mass resides and, thus, the mass radius of the proton. The striking thing about the result is that it's different ...

The massive quarks — counterintuitively heavier than the proton itself — might carry about 0.6 percent of a proton’s momentum.

Physics Protons seem to be a different size depending on how you look at them. An experiment that probed particles called gluons, which contain most of the mass of a proton, has revealed that a ...

Do top quarks, nature's heaviest elementary particle, obey Einstein's rules at all times of day and night? Scientists at the Large Hadron Collider have the answer.