A team of physicists has embarked on a journey where few others have gone: into the glue that binds atomic nuclei. The resultant measurement, which was extracted from experimental data taken at the ...

Physicists report new evidence that production of an exotic state of matter in collisions of gold nuclei at the Relativistic Heavy Ion Collider (RHIC) can be 'turned off' by lowering the collision ...

Very soon after the Big Bang, the universe enjoyed a brief phase where quarks and gluons roamed freely, not yet joined up into hadrons such as protons, neutrons and mesons. This state, called a ...

For jets of particles within the quark-gluon plasma created in a heavy-ion collision, jets with a wide splitting-angle radiate energy independently, losing more energy than jets with a narrow ...

GlueX The spectrometer at Jefferson Lab was used to study the behaviour of gluons within nuclei. (Courtesy: Jefferson Lab/Aileen Devlin) A new experiment has offered the clearest view yet of how ...

In the first fraction of a second after the big bang, the universe was a hot, dense ocean of perfectly free-flowing particles called a quark-gluon plasma. It didn't last long—all the gluons and ...