6 documents found, page 1 of 1
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...
New limits on the resonant absorption of solar axions obtained with a $$^\mathb...
Abdelhameed, A. H.; Bakhlanov, S. V.; Bauer, P.; Bento, A.; Bertoldo, E.; Canonica, L.; Derbin, A. V.; Drachnev, I. S.; Iachellini, N. FerreiroA search for resonant absorption of solar axions by 169Tm nuclei was carried out. A newly developed approach involving low-background cryogenic bolometer based on Tm3Al5O12 crystal was used that allowed for significant improvement of sensitivity in comparison with previous 169Tm based experiments. Themeasurements performed with 8.18 g crystal during 6.6 days exposure yielded the following limits on axion coupli...
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...
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...