Physics researchers working at the High Energy Accelerator Research Organization (KEK) Laboratory in Japan have observed a new type of interaction among the most fundamental of particles, the quark.

A recent experiment has determined how much of the mirror-symmetry breaking in the electron-quark interaction originates from quarks' spin preference in the weak interaction five times more precisely ...

Pentaquarks do not fit into the traditional quark model of hadrons, but understanding these exotic new particles is offering fresh insights into the subtleties of the strong interaction Five quarks In ...

UPTON, NY--Nuclear physicists from around the world seeking to understand the intricate details of the building blocks of visible matter are meeting in Venice, Italy, May 13-19, to discuss the latest ...

UPTON, NY—Using some of the world’s most powerful supercomputers, a group of theorists has produced a major advance in the field of nuclear physics—a calculation of the “heavy quark diffusion ...

Light and heavy New calculations reveal quark distributions in flavour-asymmetric mesons. (Courtesy: iStock Traffic-Analyzer) The distribution of quarks inside flavour-asymmetric mesons has been ...

The study of dibaryon physics investigates the formation and characteristics of bound states comprising six quarks, effectively representing a composite of two baryons. Central to this field is the ...

The internal structure of a proton, with quarks, gluons, and quark spin shown. The nuclear force acts like a spring, with negligible force when unstretched but large, attractive forces when stretched ...

Like atoms, subatomic particles can link up to form “molecules.” A long-studied subatomic particle called Lambda (1405) is actually a molecule of two tightly knit particles, researchers report in the ...

The early Universe was a strange place. The Universe was so dense and hot that atoms and nuclei could not form—they would be ripped apart by high-energy collisions. Even protons and neutrons could not ...