Überraschendes Signal im Dunkle-Materie-Detektor XENON1T
07/2020 - Daten von XENON1T, dem weltweit empfindlichsten Dunkle-Materie-Detektor an dem das Physikalische Institut beteiligt ist, enthalten einen überraschenden Signalüberschuss.
The "core" of the XENON1T detector.
Scientists from the international XENON collaboration observed a surprising excess of low-energy events in the XENON1T dark matter experiment. XENON1T was built to detect dark matter, however, the observed signal cannot be caused by dark matter. The scientists have observed an unexpected rate of events, the source of which is not yet fully understood. The signature of the excess is similar to what might result from a tiny residual amount of tritium (super heavy hydrogen), but could also be a sign of something more exciting: the existence of a new particle known as the solar axion or the indication of previously unknown properties of neutrinos.