The COSINUS project: perspectives of a NaI scintillating calorimeter for dark matter search

Angloher, G.; Carniti, P.; Cassina, L.; Gironi, L.; Gotti, C.; Gütlein, A.; Hauff, D.; Maino, M.; Nagorny, S.S.; Pagnanini, L.; Pessina, G.; Petricca, F.; Pirro, S.; Pröbst, F.; Reindl, F.; Schäffner, K.; Schieck, J.; Seidel, W.

doi:10.1140/epjc/s10052-016-4278-3

Cited by 105 publications

(119 citation statements)

References 54 publications

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“…Other experiments using the same target are crucial to ascertain whether the DAMA/LIBRA positive signal is a signature of the halo dark matter particles or some systematics. There are several efforts around the world pursuing this goal [13,14,15]. COSINE-100 and ANAIS-112 experiments are presently in data taking phase, and both have already published preliminary analysis.…”

Section: Introductionmentioning

confidence: 99%

ANAIS-112 status: two years results on annual modulation

Amaré

Cebrián

Cintas

et al. 2020

J. Phys.: Conf. Ser.

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ANAIS (Annual modulation with NaI Scintillators) is a dark matter direct detection experiment located at the Canfranc Underground Laboratory (LSC), in Spain. The goal is to confirm or refute in a model independent way the DAMA/LIBRA positive result: an annual modulation in the low-energy detection rate compatible with the expected signal induced by dark matter particles in the galactic halo. This signal, observed for about 20 years, is in strong tension with the negative results of other very sensitive experiments, but a direct comparison using the same target material, NaI(Tl), was still lacking. ANAIS-112, consisting of 112.5 kg of NaI(Tl) scintillators, is taking data at the LSC since August 2017. Here we present the preliminary annual modulation analysis corresponding to two years of data (exposure of 220.69 kg×y) and the ANAIS-112 projected sensitivity for the scheduled 5 y of operation.

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Section: Introductionmentioning

confidence: 99%

ANAIS-112 status: two years results on annual modulation

Amaré

Cebrián

Cintas

et al. 2020

J. Phys.: Conf. Ser.

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“…Cryogenic detectors measure the temperature rise ∆T = ∆E/C following an energy deposition ∆E in a target with a heat capacity C. For crystalline material kept at a temperature O(mK), C is small enough to achieve a measurable ∆T even for small energy depositions. The detector technology of NUCLEUS is based on CRESST cryogenic detectors [29] which have world-leading sensitivity in the field of direct low mass dark matter search and are driven by similar requirements as the study of CEνNS: a sub-keV energy threshold as well as a low intrinsic background. The CRESST experiment has developed CaWO 4 and Al 2 O 3 crystals as targets with masses between 24 g and 300 g.…”

Section: The Nucleus Experimentsmentioning

confidence: 99%

“…Detectors with a total mass of O(1 g) enable ultra-low thresholds [30] and imply a total event rate per crystal of 1 Hz which is crucial to keep the deadtime at a value of O(1%). In the CRESST experiment [29], transition edge sensors (TESs) have proven to be a highly sensitive thermometer able to measure the low recoil energies produced in CEνNS. With a 0.5 g prototype detector made from a (5 mm) 3 Al 2 O 3 cubic crystal, an unprecedented ultra-low threshold of E th = (19.7 ± 0.9) eV has been reached [13], one order of magnitude lower than previous devices.…”

Section: The Nucleus Target Detectorsmentioning

confidence: 99%

Exploring $$\hbox {CE}\nu \hbox {NS}$$ with NUCLEUS at the Chooz nuclear power plant

et al. 2019

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Coherent elastic neutrino-nucleus scattering (CEνNS) offers a unique way to study neutrino properties and to search for new physics beyond the Standard Model. Nuclear reactors are promising sources to explore this process at low energies since they deliver large fluxes of (anti-)neutrinos with typical energies of a few MeV. In this paper, a new-generation experiment to study CEνNS is described. The NUCLEUS experiment will use cryogenic detectors which feature an unprecedentedly low energy threshold and a time response fast enough to be operated in above-ground conditions. Both sensitivity to low-energy nuclear recoils and a high event rate tolerance are stringent requirements to measure CEνNS of reactor antineutrinos. A new experimental site, denoted the Very-Near-Site (VNS), at the Chooz nuclear power plant in France is described. The VNS is located between the two 4.25 GW th reactor cores and matches the requirements of NUCLEUS. First results of on-site measurements of neutron and muon backgrounds, the expected dominant background contributions, are given. In this paper a preliminary experimental setup with dedicated active and passive background reduction techniques is presented. Furthermore, the feasibility to operate the NUCLEUS detectors in coincidence with an active muon-veto at shallow overburden is studied. The paper concludes with a sensitivity study pointing out the promising physics potential of NUCLEUS at the Chooz nuclear power plant. Figure 1: Differential CEνNS count rate on Li 2 WO 4 (solid green line), CaWO 4 (dashed blue line), germanium (dash-dotted red line) and Al 2 O 3 (dotted orange line), calculated with the antineutrino flux expected at the Very-Near-Site from both Chooz-B reactor cores. The reactor neutrino flux model follows [3] as parameterized in [4]. The NUCLEUS experiment aims to reach a background count rate of of 100 counts/(keV·kg·day), indicated by the gray band.

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“…Also in LNGS, COSINUS (Cryogenic Observatory for SIgnatures seen in Nextgeneration Underground Searches) pursues a different approach, developing NaI scintillating bolometers [26]. As the phonon signal is independent of the particle type but the scintillation light is dependent, such a detector has potential to discriminate nuclear recoil events from electronic background.…”

Section: Annual Modulationmentioning

confidence: 99%

Small scale direct dark matter search experiments

Cebrián

2020

J. Phys.: Conf. Ser.

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Experiments based on noble liquids and solid state cryogenic detectors have had a leading role in the direct detection of dark matter. But smaller scale projects can help to explore the new dark matter landscape with advanced, ultra-sensitive detectors based on recently developed technologies. Here, the physics case of different types of small scale dark matter experiments will be presented and many of them will be reviewed, highlighting the detection techniques and summarizing their properties, results and status.

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The COSINUS project: perspectives of a NaI scintillating calorimeter for dark matter search

Cited by 105 publications

References 54 publications

ANAIS-112 status: two years results on annual modulation

ANAIS-112 status: two years results on annual modulation

Exploring $$\hbox {CE}\nu \hbox {NS}$$ with NUCLEUS at the Chooz nuclear power plant

Small scale direct dark matter search experiments

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