Theory of the strong interaction verified

The fact that the neutron is slightly more massive than the proton is the reason why atomic nuclei have exactly those properties that make our world and ultimately our existence possible. Eighty years after the discovery ...

Explainer: What are fundamental particles?

It is often claimed that the Ancient Greeks were the first to identify objects that have no size, yet are able to build up the world around us through their interactions. And as we are able to observe the world in tinier ...

Accelerating argon

Over the past few days, the SPS has been accelerating argon ions, which have started to be sent to the NA61/SHINE experiment. This operating mode, using a new type of ion, required a number of modifications to the accelerator.

Infographic: Rhic cooks up a quantum tempest in a teacup

When particles collide inside Brookhaven Lab's Relativistic Heavy Ion Collider (RHIC), they melt at trillion-degree temperatures and form a friction-free "perfect" liquid. This quark-gluon plasma, composed of the liberated ...

A closer look at the perfect fluid

By combining data from two high-energy accelerators, nuclear scientists have refined the measurement of a remarkable property of exotic matter known as quark-gluon plasma. The findings reveal new aspects of the ultra-hot, ...

Extension of standard model by knot algebra

This paper makes a connection between the quantum group SLq(2), which described knots, and the elementary particles of the standard model. The elements of the fundamental (j = 1/2) representation of SLq(2) are interpreted ...

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