Observation of Excess Electronic-Recoil Events in XENON1T

  • Date: –11:30
  • Location: Zoom
  • Lecturer: Adam Brown (University of Zurich )
  • Contact person: Rebeca Gonzalez Suarez
  • Seminarium

This will be a virtual seminar, and will be hosted in Zoom

Link: https://uu-se.zoom.us/j/67847925839

Meeting ID: 678 4792 5839

This meeting is password protected, if you are interested in joining, send an email to rebeca.gonzalez.suarez@physics.uu.se

We present recent results from the XENON1T experiment. Using a 0.65 t yr exposure, we perform one of the most sensitive searches for solar axions, an enhanced neutrino magnetic moment using solar neutrinos, and bosonic dark matter. We observe an excess of low-energy (1—7 keV) events. A solar axion signal is favoured at 3.4σ over background. The signal can also be explained by the beta-decay of tritium within the detector or by an enhanced neutrino magnetic moment. We review the XENON1T detector and its other results and present the evidence for excess low-energy events together with the alternative interpretations.