The LHC lead-ion collision run starts

The LHC is back delivering collisions to the experiments after the successful leak repair in August. But instead of protons, it is now the turn of lead ion beams to collide, marking the first heavy-ion run in five years.

Exploring the hidden charm of quark-gluon plasma

Quark–gluon plasma is an extremely hot and dense state of matter in which the elementary constituents—quarks and gluons—are not confined inside composite particles called hadrons, as they are in the protons and neutrons ...

Particle physicists study 'little bangs' at the ATLAS experiment

A new result from the ATLAS Collaboration at CERN studies the interactions of photons—particles of light—with lead nuclei at the Large Hadron Collider (LHC). Using new data collection techniques, physicists revealed an ...

More energy means more effects—in proton collisions

The higher the collision energy of particles, the more interesting the physics. Scientists from the Institute of Nuclear Physics of the Polish Academy of Sciences in Cracow have found further confirmation of this assumption, ...

The hunt for hot nuclear matter

In particle physics, a jet is a shower of collimated particles generated by a highly energetic quark or gluon. In a lead-lead collision, jets must traverse through quark gluon plasma, altering their energy, track and consistency.

Researchers explore the billiard dynamics of photon collisions

When one snooker ball hits another, both spring away from each other in an elastic manner. In the case of two photons, a similar process, the elastic collision, has never been observed. Physicists from the Institute of Nuclear ...

CERN collides heavy nuclei at new record high energy

The world's most powerful accelerator, the 27 km long Large Hadron Collider (LHC) operating at CERN in Geneva established collisions between lead nuclei, this morning, at the highest energies ever. The LHC has been colliding ...

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