M. Willers
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View article: Description of CRESST-II and CRESST-III pulse shape data
Description of CRESST-II and CRESST-III pulse shape data Open
A set of data from 68 cryogenic detectors operated in the CRESST dark matter search experiment between 2013 and 2019 was collected and labeled to train binary classifiers for data cleaning. Here, we describe the data set and how the traine…
View article: Optimal Operation of Cryogenic Calorimeters Through Deep Reinforcement Learning
Optimal Operation of Cryogenic Calorimeters Through Deep Reinforcement Learning Open
Cryogenic phonon detectors with transition-edge sensors achieve the best sensitivity to sub-GeV/c $$^2$$ dark matter interactions with nuclei in current direct detection experiments. In such devices, the temperature of the thermometer a…
View article: Detector Development for the CRESST Experiment
Detector Development for the CRESST Experiment Open
Recently low-mass dark matter direct searches have been hindered by a low-energy background, drastically reducing the physics reach of the experiments. In the CRESST-III experiment, this signal is characterised by a significant increase of…
View article: Geant4 simulations of the influence of contamination and roughness of the detector surface on background spectra in CRESST
Geant4 simulations of the influence of contamination and roughness of the detector surface on background spectra in CRESST Open
CRESST is an experiment for the direct detection of dark matter, capable of detecting nuclear\nrecoils down to 10 eV, which results in an impressive sensitivity for sub-GeV dark matter particles.\nFor a better understanding of the measured…
View article: Optimal operation of cryogenic calorimeters through deep reinforcement learning
Optimal operation of cryogenic calorimeters through deep reinforcement learning Open
Cryogenic phonon detectors with transition-edge sensors achieve the best sensitivity to light dark matter-nucleus scattering in current direct detection dark matter searches. In such devices, the temperature of the thermometer and the bias…
View article: Detector development for the CRESST experiment
Detector development for the CRESST experiment Open
Recently low-mass dark matter direct searches have been hindered by a low energy background, drastically reducing the physics reach of the experiments. In the CRESST-III experiment, this signal is characterised by a significant increase of…
View article: Observation of a low energy nuclear recoil peak in the neutron calibration data of the CRESST-III experiment
Observation of a low energy nuclear recoil peak in the neutron calibration data of the CRESST-III experiment Open
New-generation direct searches for low mass dark matter feature detection thresholds at energies well below 100 eV, much lower than the energies of commonly used x-ray calibration sources. This requires new calibration sources with sub-keV…
View article: Characterisation of low background CaWO$_4$ crystals for CRESST-III
Characterisation of low background CaWO$_4$ crystals for CRESST-III Open
The CRESST-III experiment aims at the direct detection of dark matter particles via their elastic scattering off nuclei in a scintillating CaWO _4 target crystal. For many years CaWO _4 crystals have successfully been produced in-hou…
View article: Latest observations on the low energy excess in CRESST-III
Latest observations on the low energy excess in CRESST-III Open
The CRESST experiment observes an unexplained excess of events at low energies. In the current CRESST-III data-taking campaign we are operating detector modules with different designs to narrow down the possible explanations. In this work,…
View article: Results on sub-GeV dark matter from a 10 eV threshold CRESST-III silicon detector
Results on sub-GeV dark matter from a 10 eV threshold CRESST-III silicon detector Open
We present limits on the spin-independent interaction cross section of dark matter particles with silicon nuclei, derived from data taken with a cryogenic calorimeter with 0.35 g target mass operated in the CRESST-III experiment. A baselin…
View article: Report on scipost_202210_00023v1
Report on scipost_202210_00023v1 Open
The CRESST-III experiment aims at the direct detection of dark matter particles via their elastic scattering off nuclei in a scintillating CaWO 4 target crystal.For many years CaWO 4 crystals have successfully been produced in-house at Tec…
View article: Testing spin-dependent dark matter interactions with lithium aluminate targets in CRESST-III
Testing spin-dependent dark matter interactions with lithium aluminate targets in CRESST-III Open
In the past decades, numerous experiments have emerged to unveil the nature of dark matter, one of the most discussed open questions in modern particle physics. Among them, the Cryogenic Rare Event Search with Superconducting Thermometers …
View article: Report on 2207.09375v1
Report on 2207.09375v1 Open
The CRESST experiment observes an unexplained excess of events at low energies.In the current CRESST-III data-taking campaign we are operating detector modules with different designs to narrow down the possible explanations.In this work, w…
View article: Cosmic activation of Cresst’s CaWO<sub>4</sub> crystals
Cosmic activation of Cresst’s CaWO<sub>4</sub> crystals Open
The CRESST experiment searches for dark matter induced nuclear recoils inside CaWO 4 based cryogenic calorimeters at the Laboratori Nazionali del Gran Sasso (LNGS) in Italy. To identify reliably a potential signal, a precise understanding …
View article: Latest results of CRESST-III’s search for sub-GeV/c<sup>2</sup> dark matter
Latest results of CRESST-III’s search for sub-GeV/c<sup>2</sup> dark matter Open
The CRESST-III experiment searches for direct interactions of dark matter with ordinary matter. The main event signature would be a nuclear recoil inside one of the scintillating CaWO 4 crystals. Operating the crystals as cryogenic calorim…
View article: First results on low-mass dark matter from the CRESST-III experiment
First results on low-mass dark matter from the CRESST-III experiment Open
The CRESST experiment (Cryogenic Rare Even Search with Superconducting Thermometers), located at Laboratori Nazionali del Gran Sasso in Italy, searches for dark matter particles via their elastic scattering off nuclei in a target material.…
View article: First results from the CRESST-III low-mass dark matter program
First results from the CRESST-III low-mass dark matter program Open
The CRESST experiment is a direct dark matter search which aims to measure\ninteractions of potential dark matter particles in an earth-bound detector.\nWith the current stage, CRESST-III, we focus on a low energy threshold for\nincreased …
View article: Description of CRESST-III Data
Description of CRESST-III Data Open
In CRESST-III, 10 cryogenic detector modules optimized for low energy thresholds were operated for almost two years (May 2016 - February 2018). Together with this document we are publishing data from the best performing detector module whi…
View article: First results on sub-GeV spin-dependent dark matter
First results on sub-GeV spin-dependent dark matter Open
In this work, we want to highlight the potential of lithium as a target for spin-dependent dark matter search in cryogenic experiments, with a special focus on the low-mass region of the parameter space.
We operated a prototype detector …
View article: Direct Dark Matter Search With The Cresst-Iii Experiment
Direct Dark Matter Search With The Cresst-Iii Experiment Open
The CRESST-III (Cryogenic Rare Event Search with Superconducting Thermometers) experiment located in the Gran Sasso underground laboratory (LNGS, Italy) aims at the direct detection of dark matter (DM) particles. The experiment employs sci…