11 documents found, page 1 of 2
Probing spin-dependent dark matter interactions with 6 Li: CRESST Collaboration
Angloher, G.; Benato, G.; Bento, A.; Bertoldo, E.; Bertolini, A.; Breier, R.; Bucci, C.; Canonica, L.; D’Addabbo, A.; Di Lorenzo, S.; Einfalt, L.CRESST is one of the most prominent direct detection experiments for dark matter particles with sub- GeV/c2 mass. One of the advantages of the CRESST experiment is the possibility to include a large variety of nuclides in the target material used to probe dark matter interactions. In this work, we discuss in particular the interactions of dark matter particles with protons and neutrons of 6Li. This is now possi...
Cryogenic characterization of a $$\hbox {LiAlO}_{2}$$ crystal and new results o...
Abdelhameed, A. H.; Angloher, G.; Bauer, P.; Bento, A.; Bertoldo, E.; Breier, R.; Bucci, C.; Canonica, L.; D’Addabbo, A.; Di Lorenzo, S.; Erb, A.In this work, a first cryogenic characterization of a scintillating LiAlO2 single crystal is presented. The results achieved show that this material holds great potential as a target for direct dark matter search experiments. Three different detector modules obtained from one crystal grown at the Leibniz-Institut für Kristallzüchtung (IKZ) have been tested to study different properties at cryogenic temperatures...
Erratum to: Geant4-based electromagnetic background model for the CRESST dark m...
Abdelhameed, A. H.; Angloher, G.; Bauer, P.; Bento, A.; Bertoldo, E.; Breier, R.; Bucci, C.; Canonica, L.; D’Addabbo, A.; Lorenzo, S. Di; Erb, A.
Geant4-based electromagnetic background model for the CRESST dark matter experi...
Abdelhameed, A. H.; Angloher, G.; Bauer, P.; Bento, A.; Bertoldo, E.; Breier, R.; Bucci, C.; Canonica, L.; D'Addabbo, A.; Lorenzo, S. Di; Erb, A.The CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) dark matter search experiment aims for the detection of dark matter particles via elastic scattering off nuclei in CaWO4 crystals. To understand the CRESST electromagnetic background due to the bulk contamination in the employed materials, a model based on Monte Carlo simulations was developed using the Geant4 simulation toolkit. The res...
Direct dark matter search with the CRESST-III experiment - status and perspectives
Willers, M.; Angloher, G.; Bento, A.; Bucci, C.; Canonica, L; Defay, X; Erb, A.; Feilitzsch, F v; Iachellini, N Ferreiro; Gütlein, A.; Gorla, PThe CRESST-III experiment, located in the Gran Sasso underground laboratory (LNGS, Italy), aims at the direct detection of dark matter (DM) particles. Scintillating CaWO4 crystals operated as cryogenic detectors are used as target material for DM-nucleus scattering. The simultaneous measurement of the phonon signal from the CaWO4 crystal and of the emitted scintillation light in a separate cryogenic light detec...
Search for dark photons using data from CRESST-II Phase 2
Gütlein, A.; Angloher, G.; Bento, A.; Bucci, C.; Canonica, L.; Defay, X.; Erb, A.; Feilitzsch, F v; Iachellini, N Ferreiro; Gorla, P.; Hauff, D.Understanding the nature and origin of dark matter is one of the most important challenges for modern particle physics. During the previous decade the sensitivities of direct dark matter searches have improved by several orders of magnitude. These experiments focus their work mainly on the search for dark-matter particles interacting with nuclei (e.g. Weakly Interacting Massive Particles, WIMPs). However, there...
New results on low-mass dark matter from the CRESST-II experiment
Petricca, F.; Angloher, G.; Bento, A.; Bucci, C.; Canonica, L.; Defay, X.; Erb, A.; v Feilitzsch, F.; Ferreiro Iachellini, N.; Gorla, P.; Gütlein, A.The CRESST-II experiment is searching for dark matter particles via their elastic scattering off nuclei in a target material. The CRESST target consists of scintillating CaWO4 crystals which are operated as cryogenic calorimeters at millikelvin temperatures and read out by transition edge sensors. Each interaction in the CaWO4 target crystal produces a phonon signal and also a light signal that is measured by a...
In-situ study of light production and transport in phonon/light detector module...
Kiefer, M.; Angloher, G.; Bento, A.; Bucci, C.; Canonica, L.; Erb, A.; Feilitzsch, F. v.; Iachellini, N. Ferreiro; Gorla, P.; Gütlein, A.; Hauff, D.
Results on low mass WIMPs using an upgraded CRESST-II detector
Angloher, G.; Bento, A.; Bucci, C.; Canonica, L.; Erb, A.; von Feilitzsch, F.; Iachellini, N. Ferreiro; Gorla, P.; Gütlein, A.; Hauff, D.; Huff, P.The CRESST-II cryogenic dark matter search aims for the detection of WIMPs via elastic scattering off nuclei in CaWO4 crystals. We present results from a lowthreshold analysis of a single upgraded detector module. This module efficiently vetoes low energy backgrounds induced by α-decays on inner surfaces of the detector. With an exposure of 29.35 kg live days collected in 2013 we set a limit on spin-independent...
Energy-dependent light quenching in CaWO4 crystals at mK temperatures
Strauß, R.; Angloher, G.; Bento, A.; Bucci, C.; Canonica, L.; Carli, W.; Erb, A.; von Feilitzsch, F.; Gorla, P.; Gütlein, A.; Hauff, D.; Hellgartner, D.ScintillatingCaWO4 single crystals are a promising multi-element target for rare-event searches and are currently used in the direct dark matter experiment CRESST (Cryogenic Rare Event Search with Superconducting Thermometers). The relative light output of different particle interactions in CaWO4 is quantified by quenching factors (QFs). These are essential for an active background discrimination and the identi...