The early universe was a fluid quark-gluon plasma

Scientists from the Niels Bohr Institute, University of Copenhagen, and their colleagues from the international ALICE collaboration recently collided xenon nuclei, in order to gain new insights into the properties of the ...

Small, short-lived drops of early universe matter

What was matter like moments after the Big Bang? Particles emerging from the lowest energy collisions of small particles with large heavy nuclei at the Relativistic Heavy Ion Collider (RHIC) could hold the answer. Scientists ...

The chances of detecting clumps in atomic nuclei are growing

What do atomic nuclei really look like? Are the protons and neutrons they contain distributed chaotically? Or do they perhaps bind into alpha clusters, that is, clumps made up of two protons and two neutrons? In the case ...

How are hadrons born at the huge energies available in the LHC?

Our world consists mainly of particles built up of three quarks bound by gluons. The process of the sticking together of quarks, called hadronisation, is still poorly understood. Physicists from the Institute of Nuclear Physics ...

A very special run for the LHCb experiment

For the first time, the LHCb experiment at CERN has collected data simultaneously in collider and in fixed-target modes. With this, the LHCb special run is even more special.

The most exotic fluid has an unexpectedly low viscosity

Collisions of lead nuclei in the Large Hadron Collider (LHC) take place at such great energies that quarks that are normally confined inside nucleons are released and, together with the gluons that hold them together, form ...

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