Institute for Subatomic Physics

At the Institute for Subatomic Physics (SAP) we conduct fundamental experimental research into the building blocks of matter and the various forces acting on them. We are part of the ALICE experiment at the CERN's Large Hadron Collider (LHC) in Geneva (Switzerland) and we closely collaborate with the Nikhef institute in Amsterdam.

Science in the spotlight

ALICE
LHC

News from UU

Het basiskamp van de gletsjeronderzoekers op de locatie van zomerse smeltmeren. (© Nick Gillett)
2 May 2018
Meltwater lakes do not only appear in summer, Utrecht glaciologist Peter Kuipers Munneke discovered. The cause: warm wind.
10 April 2018
The winners will compete in the Breaking Science 2018 final of 23 April
5 April 2018
New collaborative program between Utrecht University and University of Tsukuba on Quark-Gluon Plasma Physics within the ALICE experiment.
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Publications
Publications Subatamic Physics

Elliptic flow of charged particles in Pb-Pb collisions at 2.76 TeV

In one of the first publications of the ALICE experiment, where our institute played a leading role in the analysis, we showed that the emission of particles in heavy-ion collisions at the LHC has a characteristic anisotropy, called elliptic flow. The observation demonstrates that a thermalised, dense system is created, and the strength of the effect shows, that the matter behaves as a perfect liquid with an extremely small viscosity.

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