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DoubleTES detectors to investigate the CRESST low energy background: results from above-ground prototypes

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arxiv 2404.02607 v1 pith:G3FR5RQI submitted 2024-04-03 physics.ins-det

DoubleTES detectors to investigate the CRESST low energy background: results from above-ground prototypes

G. Angloher , S. Banik , G. Benato , A. Bento , A. Bertolini , R. Breier , C. Bucci , J. Burkhart
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L. Canonica A. D'Addabbo S. Di Lorenzo L. Einfalt A. Erb F.v. Feilitzsch S. Fichtinger D. Fuchs A. Garai V.M. Ghete P. Gorla P.V. Guillaumon S. Gupta D. Hauff M. Je\v{s}kovsk\'y J. Jochum M. Kaznacheeva A. Kinast H. Kluck H. Kraus S. Kuckuk A. Langenk\"amper M. Mancuso L. Marini B. Mauri L. Meyer V. Mokina M. Olmi T. Ortmann C. Pagliarone L. Pattavina F. Petricca W. Potzel P. Povinec F. Pr\"obst F. Pucci F. Reindl J. Rothe K. Sch\"affner J. Schieck S. Sch\"onert C. Schwertner M. Stahlberg L. Stodolsky C. Strandhagen R. Strauss I. Usherov F. Wagner V. Wagner V. Zema
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classification physics.ins-det
keywords energycressteventsbackgroundclosecrystaldarkdetector
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In recent times, the sensitivity of low-mass direct dark matter searches has been limited by unknown low energy backgrounds close to the energy threshold of the experiments known as the low energy excess (LEE). The CRESST experiment utilises advanced cryogenic detectors constructed with different types of crystals equipped with Transition Edge Sensors (TESs) to measure signals of nuclear recoils induced by the scattering of dark matter particles in the detector. In CRESST, this low energy background manifests itself as a steeply rising population of events below 200 eV. A novel detector design named doubleTES using two identical TESs on the target crystal was studied to investigate the hypothesis that the events are sensor-related. We present the first results from two such modules, demonstrating their ability to differentiate between events originating from the crystal's bulk and those occurring in the sensor or in its close proximity.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Prospect of the NUCLEUS Experiment at Chooz for Coherent Elastic Neutrino-Nucleus Scattering and New Physics Searches

    hep-ex 2026-03 conditional novelty 6.0

    Assuming the low-energy background can be eliminated, a 7-gram NUCLEUS detector at Chooz is projected to see coherent neutrino-nucleus scattering at 4.7σ in one year and to set competitive bounds on new neutrino interactions.

  2. Characterization of a Two-Channel Optical and Near-infrared Transition Edge Sensor System for Rare-Event Searches

    physics.ins-det 2026-05 unverdicted novelty 4.0

    A two-channel TES system for 1064 nm achieves 86% efficiency, <7% energy resolution, and <6 mHz background, allowing 5-sigma detection of signals at 2.7e-5 Hz (5e-24 W) in 20 days.