The SoLid collaboration aims to contribute to the understanding of the reactor anomaly, where the flux of (anti-)neutrinos coming from nuclear reactors is observed to be lower than expected from calculations. A possible reason for this deficit is an oscillation of the electon-antineutrino into a new fundamental particle, the sterile neutrino. By deploying a segmented detector close to a nuclear reactor core, the SoLid experiment will be able to detect or rule out such a neutrino oscillation.
The SoLid detector was constructed at Ghent during 2016-2017 and is now taking data at the BR2 research reactor at the Belgian center for nuclear research SCK.