Nachrichten
XENONnT: Freiburg parts on cover page of Physik Journal
XENONnT components produced in Freiburg prominently featured.
XENONnT Instrument Paper
A comprehensive article on the XENONnT dark matter experiment and all its subsystems was published.
The PANCAKE Platform
The astroparticle physics group published an article describing the design and performance of PANCAKE, the world's largest liquid xenon detector test platform.
The XENONnT Field Cage
The central component of a dual-phase liquid xenon time projection chamber (TPC) is its field cage. This is the structure that establishes the electric field in which electrons drift across the TPC and ensures that this field is homogenious. A new articles, authored by members of Freiburg's astroparticle physics group, describes the field cage of the XENONnT dark matter detector. The field cage was designed by and many of its components were produced in Freiburg.
Gamma spectrometry for archaeology
Using our low-background gamma spectrometer GeMSE for an interdisciplinary project with geologists and archeologists, we could proof that the iron used to produce an arrowhead in the Bronze Age is of extraterrestrial origin: most likely it comes from an iron meteorite that impacted on Estonia.
First WIMP Search Results from the XENONnT Experiment
One of the world's most sensitive detector to search for the mysterious dark matter particle releases its first results in the search for WIMPs, one of the most popular dark matter particle candidates.
PostDoc Position on XENON and DARWIN open
We are looking for a PostDoc in experimental astroparticle physics to work on XENONnT and on R&D towards DARWIN/XLZD.
First results from a Search for New Physics in Electronic Recoils from XENONnT
XENONnT, the latest detector of the XENON Dark Matter program, shows an unprecedentedly low background which facilitates searches for new, very rare phenomena with high sensitivity. First results clarify an exciting excess observed in the predecessor XENON1T and set strong limits on new physics scenarios.
Die Suche nach neuer Physik mit Elektron-Rückstoßsignalen: Erste Ergebnisse des XENONnT Experiments
XENONnT, der neueste Detektor der internationalen XENON-Kollaboration, zeigt ein bisher unerreicht niedriges Niveau an Untergrundsignalen, das eine empfindliche Suche nach neuen, sehr seltenen Phänomenen ermöglicht. Erste Ergebnisse klären nun ein aufregendes Signal, das im Vorgängerexperiment XENON1T beobachtet wurde, und setzen starke Grenzen für verschiedene Szenarien neuer Physik.
About GeMSE's new Background ... and a banana
A new paper describes the current background level of the group's GeMSE low-background spectrometer, the (almost) fully remote operation of the facility and a novel way to simulate the detection efficiency of complex-shaped (e.g., banana-like) objects.
New analysis options in a single-phase TPC
A new paper by the ERC-funded ULTIMATE team studies new options for data analysis opening up in single-phase liquid xenon TPCs.
Freiburg joins SHiP
The Astroparticle Physics Group at the University of Freiburg joins the SHiP Experiment at CERN.
APPEC Dark Matter Report
The APPEC Committee Report on the direct detection of dark matter was published online today.
Polishing the XENONnT DAQ
Scientists from Freiburg and Nikhef make the DAQ system of XENONnT ready for science data.
New low-mass WIMP limit from XENON1T
The world's most sensitive dark matter detector to-date improves upon its own results below masses of ~12 GeV/c².
Search for inelastic interactions of WIMP dark matter in XENON1T
The XENON collaboration has set world-leading constraints on the cross-section of WIMP dark matter interacting inelastically, in a pre-print published on arXiv and co-authored by the Astroparticle Physics group of the University of Freiburg.
Nature News Article on DARWIN
Nature author Elizabeth Gibney writes an article on DARWIN and its science case.
Dark Matter Sensitivity of XENONnT
A new publication, co-authored by the Freiburg Astroparticle Physics group, discusses the sensitivity of the upcoming XENONnT experiment to dark matter in the form of weakly interacting massive particles (WIMPs).
Observation of low-energy Excess in XENON1T
The XENON1T dark matter detector observes an unexpected excess of electron recoil events at low energies. This big question is: what is it?
The transparency of Teflon to Xenon Light
Researchers from the Universities of Freiburg and Münster have measured how liquid xenon scintillation light is blocked by PTFE (Teflon).
Solar neutrinos in the ultimate dark matter detector
Multi ton-scale liquid xenon-based dark matter detectors also do have an excellent sensitivity for solar neutrinos.
The DARWIN Observatory can do neutrino physics as well
DARWIN will be very sensitive to the neutrinoless double beta decay of 136Xe -- even without any isotopic enrichment.
Assembly of the XENONnT TPC
Members of the Freiburg Astroparticle Physics group participated in the assembly of the XENONnT detector.
Study on Meteorites using the GeMSE spectrometer
Results from an interdisciplinary work of astroparticle physicists and geologists using our low-background facility GeMSE.
Christmas Lectures
The 2019 editions of the Freiburg Physics Christmas lectures were once more very successful.