Scientists can determine the mass of subatomic particles that are built from quarks by looking at the particles' energy and ...

Protons and neutrons–known collectively as nucleons–are both the building blocks of matter, but one of these particles has ...

Scientists have uncovered new details about how mass is distributed inside tiny particles called hadrons, such as protons, ...

Atomic nuclei, composed of protons and neutrons, hide quarks and gluons at their core. These latter particles, still challenging to study, have long eluded scientists. In the mid-20th century, ...

Hybrid model A new description of nuclei combines the quark–gluon model of particle physics with the proton–neutron description of nuclear physics. In this artist’s impression, quarks are illustrated ...

A recent study has proposed a new mechanism for the formation of primordial black holes that could provide answers about dark matter.

which will help physicists better understand the structure and spin of both neutrons and protons. A new way to detect ...

A significant step forward in heavy-ion collision physics. The ATLAS collaboration said that this observation marks a major ...

At that point, the whole cosmos was in a state called the quark-gluon plasma. Quarks are fundamental particles that make up (among other things) the protons and neutrons at the core of atoms.

The mass of a hadron can be determined by calculating the trace of the energy-momentum tensor within the hadron, which ...