Physicists have struggled for seven decades with the question of why there is more matter in the universe than antimatter.

Professor Claudia Ratti explains about quarks and gluons, including the so-called Quark-Gluon Plasma, plus Quantum ...

Top quarks follow the rules of special relativity day and night. Is there a time of day or night at which nature's heaviest elementary particle stops obeying Einstein's rules? The answer to that ...

Most top quarks are produced in top–antitop pairs by the strong force. The production rate for this process is substantial (it has a cross-section of about 7 picobarns) and the presence of two ...

Scientists have achieved an incredible feat—mapping the forces inside a proton with extreme precision, uncovering the immense ...

On this week's episode: big bird intelligence, astronauts should jump, sheep and human history, and a tiny great ape.

Polarized proton containing spinning quarks and gluons (represented by right-handed and left-handed spirals). The negative Δg solutions (blue) are disfavored relative to the positive Δg ...

Quarks are the particles in the standard model of particle physics that bind together and comprise particles like protons and neutrons. There are six "flavors" of quark with increasing masses ...

Thus, the direction of the top quarks created by such collisions should change, too. Wildly, that means that the number of quarks created should depend on what time of day the collisions occur!