Results on light dark matter particles with a low-threshold CRESST-II detector

By G. Angloher, A. Bento, C. Bucci, L. Canonica, X. Defay, A. Erb, F. Feilitzsch, N. Iachellini, P. Gorla, A. Gütlein and 30 more. 2015

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The CRESST-II experiment uses cryogenic detectors to search for nuclear recoil events induced by the elastic scattering of dark matter particles in CaWO$$_4$$4 crystals. Given the low energy threshold of our detectors in combination with light target nuclei, low mass dark matter particles can be probed with high sensitivity. In this letter we present the results from data of a single detector module corresponding to 52 kg live days. A blind analysis is carried out. With an energy threshold for nuclear recoils of 307 eV we substantially enhance the sensitivity for light dark matter. Thereby, we extend the reach of direct dark matter experiments to the sub- GeV/$$c^2$$c2 region and demonstrate that the energy threshold is the key parameter in the search for low mass dark matter particles.

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/eb08d9e8e2140a783ee760067f835cbe7827e1d6

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Citations in the corpus

Low-mass dark matter search with CDMSlite (2017, result): “Spin-independent WIMP-nucleon cross section 90% upper limits from CDMSlite Run 1 (red dotted curve with red uncertainty band) [11] and Run 2 (black solid curve with orange uncertainty band) [12] compared to the other (more recent) most sensitive results in this mass region: CRESST-II (magenta dashed”
Light dark matter: Models and constraints (2017, methodology): “The orange shaded region is excluded by CRESST [27].”
Direct detection of strongly interacting sub-GeV dark matter via electron recoils (2019, methodology): “tact interactions mediated by a dark photon. In addition to the bounds derived in this paper (see Fig.4, top left), we also show constraints from nuclear recoil DM-searches by XENON1T [83], CRESST-II [84], the CRESST 2017 surface run [85] as obtained in [44], as well as the lower boundaries obtained”
Search for invisible decays of a Higgs boson produced through vector boson fusion in proton-proton collisions at $\sqrt{s} =$ 13 TeV (2018, methodology): “Limits are computed as a function of mχ and are compared to those from the XENON1T [79], LUX [80], PandaX-II [81], CDMSlite [82], CRESST-II [83], and CDEX-10 [84] experiments.”
Dark matter, millicharges, axion and scalar particles, gauge bosons, and other new physics with LDMX (2018, methodology): “The shaded gray regions are excluded from previous experiments, such as the BaBar monophoton analysis [96], beam dump search at E137 [16, 86], and the XENON10 direct detection experiment [32, 97–99].”
Direct detection of sub-GeV dark matter with semiconductor targets (2015, background): “a silicon target. See text electron-recoil DM constraint set with XENON10 data [31]. The black curve labelled “Current NR Constraints” shows constraints from conventional nuclear-recoil searches from [3,75,76]. Some measurements only constrain as a function of m A0. Among these, we only show the str”
Dark Matter's secret liaisons: phenomenology of a dark U(1) sector with bound states (2016, methodology): “ndependent DM-nucleus scattering. More specically, for M DM & 3 GeV we use the latest Lux WS2014-16 run [121] to set limits, while for M DM . 3 GeV we derive bounds from the Cresst-II experiment [122]. We follow the procedure of [123] described in Appendix B.2 (Lux) and B.3 (Cresst-II), where th”