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120 results on '"Einfalt L."'

1. Neutrino flux sensitivity to the next galactic core-collapse supernova in COSINUS

Author

Angloher, G., Bharadwaj, M. R., Cababie, M., Colantoni, I., Dafinei, I., De Santis, A. L., Di Marco, N., Einfalt, L., Ferella, F., Ferroni, F., Fichtinger, S., Filipponi, A., Frank, T., Friedl, M., Ge, Z., Heikinheimo, M., Hughes, M. N., Huitu, K., Kellermann, M., Maji, R., Mancuso, M., Pagnanini, L., Petricca, F., Pirro, S., Pröbst, F., Profeta, G., Puiu, A., Reindl, F., Schaeffner, K., Schieck, J., Schreiner, P., Schwertner, C., Shera, K., Stahlberg, M., Stendhal, A., Stukel, M., Tresca, C., Wagner, F., Yue, S., Zema, V., Zhu, Y., and Pagliaroli, G.

Subjects
Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Solar and Stellar Astrophysics
Abstract

While neutrinos are often treated as a background for many dark matter experiments, these particles offer a new avenue for physics: the detection of core-collapse supernovae. Supernovae are extremely energetic, violent and complex events that mark the death of massive stars. During their collapse stars emit a large number of neutrinos in a short burst. These neutrinos carry 99\% of the emitted energy which makes their detection fundamental in understanding supernovae. This paper illustrates how COSINUS (Cryogenic Observatory for SIgnatures seen in Next-generation Underground Searches), a sodium iodide (NaI) based dark matter search, will be sensitive to the next galactic core-collapse supernova. The experiment is composed of two separate detectors which will be sensitive to far and nearby supernovae. The inner core of the experiment will consist of NaI crystals operating as scintillating calorimeters, mainly sensitive to the Coherent Elastic Scattering of Neutrinos (CE$\nu$NS) against the Na and I nuclei. The low mass of the cryogenic detectors gives the experiment a sensitivity to close supernovae below 1kpc without pileup. They will see up to hundreds of CE$\nu$NS events from a supernova happening at 200pc. The crystals reside at the center of a cylindrical 230T water tank, instrumented with 30 photomultipliers. This tank acts as a passive and active shield able to detect the Cherenkov radiation induced by impinging charged particles from ambient and cosmogenic radioactivity. A supernova near the Milky Way Center (10kpc) will be easily detected inducing $\sim$60 measurable events, and the water tank will have a 3$\sigma$ sensitivity to supernovae up to 22kpc, seeing $\sim$10 events. This paper shows how, even without dedicated optimization, modern dark matter experiments will also play their part in the multi-messenger effort to detect the next galactic core-collapse supernova.

Published
2024

2. First observation of single photons in a CRESST detector and new dark matter exclusion limits

Author

CRESST Collaboration, Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Canonica, L., D'Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. v., Fichtinger, S., Fuchs, D., Garai, A., Ghete, V. M., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Kuckuk, S., Langenkämper, A., Mancuso, M., Marini, L., Mauri, B., Meyer, L., Mokina, V., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Wagner, V., and Zema, V.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The main goal of the CRESST-III experiment is the direct detection of dark matter particles via their scattering off target nuclei in cryogenic detectors. In this work we present the results of a Silicon-On-Sapphire (SOS) detector with a mass of 0.6$\,$g and an energy threshold of (6.7$\, \pm \,$0.2)$\,$eV with a baseline energy resolution of (1.0$\, \pm \,$0.2)$\,$eV. This allowed for a calibration via the detection of single luminescence photons in the eV-range, which could be observed in CRESST for the first time. We present new exclusion limits on the spin-independent and spin-dependent dark matter-nucleon cross section that extend to dark matter particle masses of less than 100$\,$MeV/c$^{2}$., Comment: 10 pages, 8 figures

Published
2024

3. Water Cherenkov muon veto for the COSINUS experiment: design and simulation optimization

Author

Angloher, G., Bharadwaj, M. R., Cababie, M., Dafinei, I., Di Marco, N., Einfalt, L., Ferroni, F., Fichtinger, S., Filipponi, A., Frank, T., Friedl, M., Ge, Z., Heikinheimo, M., Hughes, M. N., Huitu, K., Kellermann, M., Maji, R., Mancuso, M., Pagnanini, L., Petricca, F., Pirro, S., Pröbst, F., Profeta, G., Puiu, A., Reindl, F., Schäffner, K., Schieck, J., Schmiedmayer, D., Schreiner, P., Schwertner, C., Shera, K., Stahlberg, M., Stendhal, A., Stukel, M., Tresca, C., Wagner, F., Yue, S., Zema, V., and Zhu, Y.

Subjects
Physics - Instrumentation and Detectors
Abstract

COSINUS is a dark matter (DM) direct search experiment that uses sodium iodide (NaI) crystals as cryogenic calorimeters. Thanks to the low nuclear recoil energy threshold and event-by-event discrimination capability, COSINUS will address the long-standing DM claim made by the DAMA/LIBRA collaboration. The experiment is currently under construction at the Laboratori Nazionali del Gran Sasso, Italy, and employs a large cylindrical water tank as a passive shield to meet the required background rate. However, muon-induced neutrons can mimic a DM signal therefore requiring an active veto system, which is achieved by instrumenting the water tank with an array of photomultiplier tubes (PMTs). This study optimizes the number, arrangement, and trigger conditions of the PMTs as well as the size of an optically invisible region. The objective was to maximize the muon veto efficiency while minimizing the accidental trigger rate due to the ambient and instrumental background. The final configuration predicts a veto efficiency of 99.63 $\pm$ 0.16 $\%$ and 44.4 $\pm$ $5.6\%$ in the tagging of muon events and showers of secondary particles, respectively. The active veto will reduce the cosmogenic neutron background rate to 0.11 $\pm$ 0.02 cts$\cdot$kg$^{-1}$$\cdot$year$^{-1}$, corresponding to less than one background event in the region of interest for the whole COSINUS-1$\pi$ exposure of 1000 kg$\cdot$days.

Published
2024
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4. DoubleTES detectors to investigate the CRESST low energy background: results from above-ground prototypes

Author

Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Canonica, L., D'Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. v., Fichtinger, S., Fuchs, D., Garai, A., Ghete, V. M., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Kuckuk, S., Langenkämper, A., Mancuso, M., Marini, L., Mauri, B., Meyer, L., Mokina, V., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Wagner, V., and Zema, V.

Subjects
Physics - Instrumentation and Detectors
Abstract

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., Comment: 10 pages, 13 figures

Published
2024

5. COSINUS:TES-instrumented NaI Crystals for Direct Dark Matter Search

Author

Stahlberg, M., Angloher, G., Bharadwaj, M. R., Cababie, M. R., Dafinei, I., Di Marco, N., Einfalt, L., Ferroni, F., Fichtinger, S., Filipponi, A., Frank, T., Friedl, M., Fuss, A., Ge, Z., Heikinheimo, M., Hughes, M. N., Huitu, K., Kellermann, M., Maji, R., Mancuso, M., Pagnanini, L., Petricca, F., Pirro, S., Pröbst, F., Profeta, G., Puiu, A., Reindl, F., Schäffner, K., Schieck, J., Schmiedmayer, D., Schreiner, P., Schwertner, C., Shera, K., Stendahl, A., Stukel, M., Tresca, C., Wagner, F., Yue, S., Zema, V., and Zhu, Y.

Published
2024
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6. A Vibration Decoupling System for TES Operation in the COSINUS Dry Dilution Refrigerator

Author

Kellermann, M., Angloher, G., Bharadawj, M. R., Cababie, M., Dafinei, I., Di Marco, N., Einfalt, L., Ferroni, F., Fichtinger, S., Filipponi, A., Frank, T., Friedl, M., Ge, Z., Heikinheimo, M., Hughes, M. N., Huitu, K., Maji, R., Mancuso, M., Pagnanini, L., Petricca, F., Pirro, S., Pröbst, F., Profeta, G., Puiu, A., Reindl, F., Schäffner, K., Schieck, J., Schmiedmayer, D., Schreiner, P., Schwertner, C., Stahlberg, M., Stendahl, A., Stukel, M. J., Tresca, C., Wagner, F., Yue, S., Zema, V., and Zhu, Y.

Published
2024
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7. Description and Performance of the COSINUS remoTES Design

Author

Zema, V., Shera, K., Angloher, G., Bharadwaj, M. R., Cababie, M. R., Dafinei, I., Di Marco, N., Einfalt, L., Ferroni, F., Fichtinger, S., Filipponi, A., Frank, T., Friedl, M., Ge, Z., Heikinheimo, M., Hughes, M. N., Huitu, K., Kellermann, M., Maji, R., Mancuso, M., Pagnanini, L., Petricca, F., Pirro, S., Pröbst, F., Profeta, G., Puiu, A., Reindl, F., Schäffner, K., Schieck, J., Schmiedmayer, D., Schreiner, P. R., Schwertner, C., Stahlberg, M., Stendahl, A., Stukel, M., Tresca, C., Wagner, F., Yue, S., and Zhu, Y.

Published
2024
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8. A likelihood framework for cryogenic scintillating calorimeters used in the CRESST dark matter search

Author

CRESST Collaboration, Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Canonica, L., D'Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. v., Fichtinger, S., Fuchs, D., Garai, A., Ghete, V. M., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Kuckuk, S., Langenkämper, A., Mancuso, M., Marini, L., Mauri, B., Meyer, L., Mokina, V., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schmiedmayer, D., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Wagner, V., and Zema, V.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

Cryogenic scintillating calorimeters are ultrasensitive particle detectors for rare event searches, particularly for the search for dark matter and the measurement of neutrino properties. These detectors are made from scintillating target crystals generating two signals for each particle interaction. The phonon (heat) signal precisely measures the deposited energy independent of the type of interacting particle. The scintillation light signal yields particle discrimination on an event-by-event basis. This paper presents a likelihood framework modeling backgrounds and a potential dark matter signal in the two-dimensional plane spanned by phonon and scintillation light energies. We apply the framework to data from CaWO$_4$-based detectors operated in the CRESST dark matter search. For the first time, a single likelihood framework is used in CRESST to model the data and extract results on dark matter in one step by using a profile likelihood ratio test. Our framework simultaneously fits (neutron) calibration data and physics (background) data and allows combining data from multiple detectors. Although tailored to CaWO$_4$-targets and the CRESST experiment, the framework can easily be expanded to other materials and experiments using scintillating cryogenic calorimeters for dark matter search and neutrino physics., Comment: 18 pages, 11 figures, additional figures and data in ancillary files (on arXiv or at journal reference)

Published
2024
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9. Detector development for the CRESST experiment

Author

Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Canonica, L., D'Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. v., Fichtinger, S., Fuchs, D., Garai, A., Ghete, V. M., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Kuckuk, S., Langenkaemper, A., Mancuso, M., Marini, L., Mauri, B., Meyer, L., Mokina, V., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Proebst, F., Pucci, F., Reindl, F., Rothe, J., Schaeffner, K., Schieck, J., Schoenert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., and Zema, V.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

Recently low-mass dark matter direct searches have been hindered by a low energy background, drastically reducing the physics reach of the experiments. In the CRESST-III experiment, this signal is characterised by a significant increase of events below 200 eV. As the origin of this background is still unknown, it became necessary to develop new detector designs to reach a better understanding of the observations. Within the CRESST collaboration, three new different detector layouts have been developed and they are presented in this contribution., Comment: 8 pages, 4 figures

Published
2023

10. Light Dark Matter Search Using a Diamond Cryogenic Detector

Author

CRESST Collaboration, Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Canonica, L., D'Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. v., Fichtinger, S., Fuchs, D., Garai, A., Ghete, V. M., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Kuckuk, S., Langenkämper, A., Mancuso, M., Marini, L., Mauri, B., Meyer, L., Mokina, V., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., and Zema, V.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract

Diamond operated as a cryogenic calorimeter is an excellent target for direct detection of low-mass dark matter candidates. Following the realization of the first low-threshold cryogenic detector that uses diamond as absorber for astroparticle physics applications, we now present the resulting exclusion limits on the elastic spin-independent interaction cross-section of dark matter with diamond. We measured two 0.175 g CVD (Chemical Vapor Deposition) diamond samples, each instrumented with a W-TES. Thanks to the energy threshold of just 16.8 eV of one of the two detectors, we set exclusion limits on the elastic spin-independent interaction of dark matter particles with carbon nuclei down to dark matter masses as low as 0.122 GeV/c2. This work shows the scientific potential of cryogenic detectors made from diamond and lays the foundation for the use of this material as target for direct detection dark matter experiments., Comment: 6 pages, 6 figures

Published
2023

11. Detector Development for the CRESST Experiment

Author

Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Canonica, L., D’Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. V., Fichtinger, S., Fuchs, D., Garai, A., Ghete, V. M., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Kuckuk, S., Langenkämper, A., Mancuso, M., Marini, L., Mauri, B., Meyer, L., Mokina, V., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., and Zema, V.

Published
2024
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12. Deep-underground dark matter search with a COSINUS detector prototype

Author

The COSINUS Collaboration, Angloher, G., Bharadwaj, M. R., Dafinei, I., Di Marco, N., Einfalt, L., Ferroni, F., Fichtinger, S., Filipponi, A., Frank, T., Friedl, M., Fuss, A., Ge, Z., Heikinheimo, M., Hughes, M. N., Huitu, K., Kellermann, M., Maji, R., Mancuso, M., Pagnanini, L., Petricca, F., Pirro, S., Proebst, F., Profeta, G., Puiu, A., Reindl, F., Schaeffner, K., Schieck, J., Schmiedmayer, D., Schwertner, C., Shera, K., Stahlberg, M., Stendahl, A., Stukel, M., Tresca, C., Wagner, F., Yue, S., Zema, V., and Zhu, Y.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

Sodium iodide (NaI) based cryogenic scintillating calorimeters using quantum sensors for signal read out have shown promising first results towards a model-independent test of the annually modulating signal detected by the DAMA/LIBRA dark matter experiment. The COSINUS collaboration has previously reported on the first above-ground measurements using a dual channel readout of phonons and light based on transition edge sensors (TESs) that allows for particle discrimination on an event-by-event basis. In this letter, we outline the first underground measurement of a NaI cryogenic calorimeter read out via the novel remoTES scheme. A 3.67 g NaI absorber with an improved silicon light detector design was operated at the Laboratori Nazionali del Gran Sasso, Italy. A significant improvement in the discrimination power of $e^-$/$\gamma$-events to nuclear recoils was observed with a five-fold improvement in the nuclear recoil baseline resolution, achieving $\sigma$ = 441 eV. Furthermore, we present a limit on the spin-independent dark-matter nucleon elastic scattering cross-section achieving a sensitivity of $\mathcal{O}$(pb) with an exposure of only 11.6 g d., Comment: 11 pages, 14 figures

Published
2023
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13. Particle discrimination in a NaI crystal using the COSINUS remote TES design

Author

COSINUS Collaboration, Angloher, G., Bharadwaj, M. R., Dafinei, I., Di Marco, N., Einfalt, L., Ferroni, F., Fichtinger, S., Filipponi, A., Frank, T., Friedl, M., Fuss, A., Ge, Z., Heikinheimo, M., Hughes, M. N., Huitu, K., Kellermann, M., Maji, R., Mancuso, M., Pagnanini, L., Petricca, F., Pirro, S., Pröbst, F., Profeta, G., Puiu, A., Reindl, F., Schäffner, K., Schieck, J., Schmiedmayer, D., Schwertner, C., Stahlberg, M., Stendhal, A., Stukel, M., Tresca, C., Wagner, F., Yue, S., Zema, V., Zhu, Y., Bento, A., Canonica, L., and Garai, A.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The COSINUS direct dark matter experiment situated at Laboratori Nazionali del Gran Sasso in Italy is set to investigate the nature of the annually modulating signal detected by the DAMA/LIBRA experiment. COSINUS has already demonstrated that sodium iodide crystals can be operated at mK temperature as cryogenic scintillating calorimeters using transition edge sensors, despite the complication of handling a hygroscopic and low melting point material. With results from a new COSINUS prototype, we show that particle discrimination on an event-by-event basis in NaI is feasible using the dual-channel readout of both phonons and scintillation light. The detector was mounted in the novel remoTES design and operated in an above-ground facility for 9.06 g$\cdot$d of exposure. With a 3.7 g NaI crystal, e$^-$/$\gamma$ events could be clearly distinguished from nuclear recoils down to the nuclear recoil energy threshold of 15 keV., Comment: 7 pages, 9 figures

Published
2023
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14. High-Dimensional Bayesian Likelihood Normalisation for CRESST's Background Model

Author

Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Canonica, L., D'Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. v., Fichtinger, S., Fuchs, D., Garai, A., Ghete, V. M., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Jeskovsky, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Kuckuk, S., Langenkaemper, A., Mancuso, M., Marini, L., Meyer, L., Mokina, V., Nilima, A., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Proebst, F., Pucci, F., Reindl, F., Rothe, J., Schaeffner, K., Schieck, J., Schmiedmayer, D., Schoenert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., Zema, V., Ferella, F., Laubenstein, M., and Nisi, S.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment
Abstract

Using CaWO$_4$ crystals as cryogenic calorimeters, the CRESST experiment searches for nuclear recoils caused by the scattering of potential Dark Matter particles. A reliable identification of a potential signal crucially depends on an accurate background model. In this work we introduce an improved normalisation method for CRESST's model of the electromagnetic backgrounds. Spectral templates, based on Geant4 simulations, are normalised via a Bayesian likelihood fit to experimental background data. Contrary to our previous work, no assumption of partial secular equilibrium is required, which results in a more robust and versatile applicability. Furthermore, considering the correlation between all background components allows us to explain 82.7% of the experimental background within [1 keV, 40 keV], an improvement of 18.6% compared to our previous method., Comment: 38 pages, 15 figures, accepted version to JINST

Published
2023
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15. Optimal Operation of Cryogenic Calorimeters Through Deep Reinforcement Learning

Author

Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Canonica, L., D’Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., v. Feilitzsch, F., Fichtinger, S., Fuchs, D., Garai, A., Ghete, V. M., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kuckuk, S., Kluck, H., Kraus, H., Langenkämper, A., Mancuso, M., Marini, L., Mauri, B., Meyer, L., Mokina, V., Niedermayer, K., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Wagner, V., Willers, M., Zema, V., Heitzinger, C., and Waltenberger, W.

Published
2024
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16. Erratum to: DoubleTES detectors to investigate the CRESST low energy background: results from above-ground prototypes

Author

Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Canonica, L., D’Addabbo, A., Lorenzo, S. Di, Einfalt, L., Erb, A., Feilitzsch, F. v., Fichtinger, S., Fuchs, D., Garai, A., Ghete, V. M., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Kuckuk, S., Langenkämper, A., Mancuso, M., Marini, L., Mauri, B., Meyer, L., Mokina, V., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Wagner, V., and Zema, V.

Published
2024
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17. Constraints on self-interaction cross-sections of dark matter in universal bound states from direct detection

Author

Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Cipelli, E., Canonica, L., D’Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. v., Fichtinger, S., Fuchs, D., Garai, A., Ghete, V. M., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kuckuk, S., Kluck, H., Kraus, H., Langenkämper, A., Mancuso, M., Marini, L., Mauri, B., Meyer, L., Mokina, V., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Wagner, V., and Zema, V.

Published
2024
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18. Observation of a low energy nuclear recoil peak in the neutron calibration data of the CRESST-III Experiment

Author

CRESST Collaboration, Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Canonica, L., D'Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. v., Fichtinger, S., Fuchs, D., Fuss, A., Garai, A., Ghete, V. M., Gerster, S., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Langenkämper, A., Mancuso, M., Marini, L., Meyer, L., Mokina, V., Nilima, A., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schmiedmayer, D., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., and Zema, V.

Subjects
Physics - Instrumentation and Detectors
Abstract

New-generation direct searches for low mass dark matter feature detection thresholds at energies well below 100 eV, much lower than the energies of commonly used X-ray calibration sources. This requires new calibration sources with sub-keV energies. When searching for nuclear recoil signals, the calibration source should ideally cause mono-energetic nuclear recoils in the relevant energy range. Recently, a new calibration method based on the radiative neutron capture on $^{182}$W with subsequent de-excitation via single $\gamma$-emission leading to a nuclear recoil peak at 112 eV was proposed. The CRESST-III dark matter search operated several CaWO$_{4}$-based detector modules with detection thresholds below 100 eV in the past years. We report the observation of a peak around the expected energy of 112 eV in the data of three different detector modules recorded while irradiated with neutrons from different AmBe calibration sources. We compare the properties of the observed peaks with Geant-4 simulations and assess the prospects of using this for the energy calibration of CRESST-III detectors., Comment: 8 pages, 4 figures; submitted to Phys. Rev. D

Published
2023
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19. Results on sub-GeV Dark Matter from a 10 eV Threshold CRESST-III Silicon Detector

Author

CRESST Collaboration, Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Canonica, L., D'Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. v., Iachellini, N. Ferreiro, Fichtinger, S., Fuchs, D., Fuss, A., Garai, A., Ghete, V. M., Gerster, S., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Langenkämper, A., Mancuso, M., Marini, L., Meyer, L., Mokina, V., Nilima, A., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schmiedmayer, D., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., and Zema, V.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present limits on the spin-independent interaction cross section of dark matter particles with silicon nuclei, derived from data taken with a cryogenic calorimeter with 0.35 g target mass operated in the CRESST-III experiment. A baseline nuclear recoil energy resolution of $(1.36\pm 0.05)$ eV$_{\text{nr}}$, currently the lowest reported for macroscopic particle detectors, and a corresponding energy threshold of $(10.0\pm 0.2)$ eV$_{\text{nr}}$ have been achieved, improving the sensitivity to light dark matter particles with masses below 160 MeV/c$^2$ by a factor of up to 20 compared to previous results. We characterize the observed low energy excess, and we exclude noise triggers and radioactive contaminations on the crystal surfaces as dominant contributions., Comment: 8 pages, 5 figures; precised the position of the calibration source in Fig. 1; extended the discussion about the observed energy spectrum; added the DM limit curve to ancillary files. Published in Phys. Rev. D

Published
2022
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20. Towards an automated data cleaning with deep learning in CRESST

Author

Angloher, G., Banik, S., Bartolot, D., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Canonica, L., D'Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. v., Iachellini, N. Ferreiro, Fichtinger, S., Fuchs, D., Fuss, A., Garai, A., Ghete, V. M., Gerster, S., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Lackner, M., Langenkämper, A., Mancuso, M., Marini, L., Meyer, L., Mokina, V., Nilima, A., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rizvanovic, D., Rothe, J., Schäffner, K., Schieck, J., Schmiedmayer, D., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., Zema, V., and Waltenberger, W.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The CRESST experiment employs cryogenic calorimeters for the sensitive measurement of nuclear recoils induced by dark matter particles. The recorded signals need to undergo a careful cleaning process to avoid wrongly reconstructed recoil energies caused by pile-up and read-out artefacts. We frame this process as a time series classification task and propose to automate it with neural networks. With a data set of over one million labeled records from 68 detectors, recorded between 2013 and 2019 by CRESST, we test the capability of four commonly used neural network architectures to learn the data cleaning task. Our best performing model achieves a balanced accuracy of 0.932 on our test set. We show on an exemplary detector that about half of the wrongly predicted events are in fact wrongly labeled events, and a large share of the remaining ones have a context-dependent ground truth. We furthermore evaluate the recall and selectivity of our classifiers with simulated data. The results confirm that the trained classifiers are well suited for the data cleaning task., Comment: 12 pages, 8 figures, 6 tables

Published
2022
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21. Secular Equilibrium Assessment in a $\mathrm{CaWO}_4$ Target Crystal from the Dark Matter Experiment CRESST using Bayesian Likelihood Normalisation

Author

Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Canonica, L., D'Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. v., Iachellini, N. Ferreiro, Fichtinger, S., Fuchs, D., Fuss, A., Garai, A., Ghete, V. M., Gorla, P., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Langenkämper, A., Mancuso, M., Marini, L., Mokina, V., Nilima, A., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schmiedmayer, D., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., Zema, V., Ferella, F., Laubenstein, M., and Nisi, S.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

CRESST is a leading direct detection sub-$\mathrm{GeVc}^{-2}$ dark matter experiment. During its second phase, cryogenic bolometers were used to detect nuclear recoils off the $\mathrm{CaWO}_4$ target crystal nuclei. The previously established electromagnetic background model relies on secular equilibrium (SE) assumptions. In this work, a validation of SE is attempted by comparing two likelihood-based normalisation results using a recently developed spectral template normalisation method based on Bayesian likelihood. We find deviations from SE; further investigations are necessary to determine their origin., Comment: Part of special issue: ICRM-LLRMT22 8th International Conference on Radionuclide Metrology - Low Level Radioactivity Measurement and Techniques, 6 pages, 3 figures

Published
2022
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22. Latest observations on the low energy excess in CRESST-III

Author

Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Canonica, L., D'Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. v., Iachellini, N. Ferreiro, Fichtinger, S., Fuchs, D., Fuss, A., Garai, A., Ghete, V. M., Gerster, S., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Langenkämper, A., Mancuso, M., Marini, L., Meyer, L., Mokina, V., Nilima, A., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schmiedmayer, D., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., and Zema, V.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The CRESST experiment observes an unexplained excess of events at low energies. In the current CRESST-III data-taking campaign we are operating detector modules with different designs to narrow down the possible explanations. In this work, we show first observations of the ongoing measurement, focusing on the comparison of time, energy and temperature dependence of the excess in several detectors. These exclude dark matter, radioactive backgrounds and intrinsic sources related to the crystal bulk as a major contribution., Comment: 10 pages, 5 figures; to be published in IDM2022 proceedings; corrected several minor typos

Published
2022
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23. Testing spin-dependent dark matter interactions with lithium aluminate targets in CRESST-III

Author

Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Canonica, L., D'Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. v., Iachellini, N. Ferreiro, Fichtinger, S., Fuchs, D., Fuss, A., Garai, A., Ghete, V. M., Gerster, S., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Langenkämper, A., Mancuso, M., Marini, L., Meyer, L., Mokina, V., Nilima, A., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schmiedmayer, D., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., and Zema, V.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

In the past decades, numerous experiments have emerged to unveil the nature of dark matter, one of the most discussed open questions in modern particle physics. Among them, the CRESST experiment, located at the Laboratori Nazionali del Gran Sasso, operates scintillating crystals as cryogenic phonon detectors. In this work, we present first results from the operation of two detector modules which both have 10.46 g LiAlO$_2$ targets in CRESST-III. The lithium contents in the crystal are $^6$Li, with an odd number of protons and neutrons, and $^7$Li, with an odd number of protons. By considering both isotopes of lithium and $^{27}$Al, we set the currently strongest cross section upper limits on spin-dependent interaction of dark matter with protons and neutrons for the mass region between 0.25 and 1.5 GeV/c$^2$., Comment: 9 pages, 8 figures

Published
2022
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24. EXCESS workshop: Descriptions of rising low-energy spectra

Author

Adari, P., Aguilar-Arevalo, A., Amidei, D., Angloher, G., Armengaud, E., Augier, C., Balogh, L., Banik, S., Baxter, D., Beaufort, C., Beaulieu, G., Belov, V., Gal, Y. Ben, Benato, G., Benoît, A., Bento, A., Bergé, L., Bertolini, A., Bhattacharyya, R., Billard, J., Bloch, I. M., Botti, A., Breier, R., Bres, G., Bret, J-. L., Broniatowski, A., Brossard, A., Bucci, C., Bunker, R., Cababie, M., Calvo, M., Camus, P., Cancelo, G., Canonica, L., Cappella, F., Cardani, L., Caron, J. -F., Casali, N., del Castello, G., Cazes, A., Cerulli, R., Vergara, B. A. Cervantes, Chaize, D., Chapellier, M., Chaplinsky, L., Charlieux, F., Chaudhuri, M., Chavarria, A. E., Chemin, G., Chen, R., Chen, H., Chierchie, F., Colantoni, I., Colas, J., Cooley, J., Coquillat, J. -M., Corcoran, E. C., Crawford, S., Crisler, M., Cruciani, A., Cushman, P., D'Addabbo, A., D'Olivo, J. C., Dastgheibi-Fard, A., De Jésus, M., Deng, Y., Dent, J. B., Depaoli, E. L., Dering, K., Dharani, S., Di Lorenzo, S., Drlica-Wagner, A., Dumoulin, L., Durnford, D., Dutta, B., Einfalt, L., Erb, A., Erhart, A., Essig, R., Estrada, J., Etzion, E., Exshaw, O., Favela-Perez, F., Feilitzsch, F. v., Moroni, G. Fernandez, Iachellini, N. Ferreiro, Ferriol, S., Fichtinger, S., Figueroa-Feliciano, E., Filippini, J. -B., Filosofov, D., Formaggio, J. A., Friedl, M., Fuard, S., Fuchs, D., Fuss, A., Gaïor, R., Garai, A., Garrah, C., Gascon, J., Gerbier, G., Ghaith, M., Ghete, V. M., Gift, D., Giomataris, I., Giroux, G., Giuliani, A., Gorel, P., Gorla, P., Goupy, C., Goupy, J., Goy, C., Gros, M., Gros, P., Guardincerri, Y., Guerin, C., Guidi, V., Guillaudin, O., Gupta, S., Guy, E., Harrington, P., Hauff, D., Heine, S. T., Hertel, S. A., Holland, S. E., Hong, Z., Hoppe, E. W., Hossbach, T. W., Ianigro, J. -C., Iyer, V., Jastram, A., Ješkovský, M., Jin, Y., Jochum, J., Johnston, J. P., Juillard, A., Karaivanov, D., Kashyap, V., Katsioulas, I., Kazarcev, S., Kaznacheeva, M., Kelly, F., Kilminster, B., Kinast, A., Klinkenberg, L., Kluck, H., Knights, P., Korn, Y., Kraus, H., von Krosigk, B., Kubik, A., Kurinsky, N. A., Lamblin, J., Langenkämper, A., Langrock, S., Lasserre, T., Lattaud, H., Lautridou, P., Lawson, I., Lee, S. J., Lee, M., Letessier-Selvon, A., Lhuillier, D., Li, M., Lin, Y. -T., Lubashevskiy, A., Mahapatra, R., Maludze, S., Mancuso, M., Manthos, I., Marini, L., Marnieros, S., Martin, R. D., Matalon, A., Matthews, J., Mauri, B., Mayer, D. W., Mazzolari, A., Mazzucato, E., Theenhausen, H. Meyer zu, Michielin, E., Minet, J., Mirabolfathi, N., Mirbach, K. v., Misiak, D., Mitra, P., Mocellin, J-. L., Mohanty, B., Mokina, V., Mols, J. -P., Monfardini, A., Mounier, F., Munagavalasa, S., Muraz, J. -F., Navick, X. -F., Neep, T., Neog, H., Neyrial, H., Nikolopoulos, K., Nilima, A., Nones, C., Novati, V., O'Brien, P., Oberauer, L., Olivieri, E., Olmi, M., Onillon, A., Oriol, C., Orly, A., Orrell, J. L., Ortmann, T., Overman, C. T., Pagliarone, C., Palušová, V., Pari, P., Patel, P. K., Pattavina, L., Petricca, F., Piers, A., Pinckney, H. D., Piro, M. -C., Platt, M., Poda, D., Ponomarev, D., Potzel, W., Povinec, P., Pröbst, F., Privitera, P., Pucci, F., Ramanathan, K., Real, J. -S., Redon, T., Reindl, F., Ren, R., Robert, A., Da Rocha, J., Rodrigues, D., Rogly, R., Rothe, J., Rowe, N., Rozov, S., Rozova, I., Saab, T., Saffold, N., Salagnac, T., Sander, J., Sanglard, V., Santos, D., Sarkis, Y., Savu, V., Savvidis, G., Savvidis, I., Schönert, S., Schäffner, K., Schermer, N., Schieck, J., Schmidt, B., Schmiedmayer, D., Schwertner, C., Scola, L., Settimo, M., Shevchik, Ye., Sibille, V., Sidelnik, I., Singal, A., Smida, R., Haro, M. Sofo, Soldner, T., Stachurska, J., Stahlberg, M., Stefanazzi, L., Stodolsky, L., Strandhagen, C., Strauss, R., Stutz, A., Thomas, R., Thompson, A., Tiffenberg, J., Tomei, C., Traina, M., Uemura, S., Usherov, I., Vagneron, L., Van De Pontseele, W., Fernandez, F. A. Vazquez de Sola, Vidal, M., Vignati, M., Virto, A. L., Vivier, M., Volansky, T., Wagner, V., Wagner, F., Walker, J., Ward, R., Watkins, S. L., Wex, A., Willers, M., Wilson, M. J., Winslow, L., Yakushev, E., Yu, T. -T., Zampaolo, M., Zaytsev, A., Zema, V., Zinatulina, D., and Zolotarova, A.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract

Many low-threshold experiments observe sharply rising event rates of yet unknown origins below a few hundred eV, and larger than expected from known backgrounds. Due to the significant impact of this excess on the dark matter or neutrino sensitivity of these experiments, a collective effort has been started to share the knowledge about the individual observations. For this, the EXCESS Workshop was initiated. In its first iteration in June 2021, ten rare event search collaborations contributed to this initiative via talks and discussions. The contributing collaborations were CONNIE, CRESST, DAMIC, EDELWEISS, MINER, NEWS-G, NUCLEUS, RICOCHET, SENSEI and SuperCDMS. They presented data about their observed energy spectra and known backgrounds together with details about the respective measurements. In this paper, we summarize the presented information and give a comprehensive overview of the similarities and differences between the distinct measurements. The provided data is furthermore publicly available on the workshop's data repository together with a plotting tool for visualization., Comment: 44 pages, 20 figures; Editors: A. Fuss, M. Kaznacheeva, F. Reindl, F. Wagner; updated copyright statements and funding information

Published
2022
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25. Probing spin-dependent dark matter interactions with $^6$Li

Author

Angloher, G., Benato, G., Bento, A., Bertoldo, E., Bertolini, A., Breier, R., Bucci, C., Canonica, L., D'Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. v., Iachellini, N. Ferreiro, Fichtinger, S., Fuchs, D., Fuss, A., Garai, A., Ghete, V. M., Gorla, P., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Langenkämper, A., Mancuso, M., Marini, L., Mokina, V., Nilima, A., Olmi, M., Ortmann, T., Pagliarone, C., Palušová, V., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schmiedmayer, D., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., and Zema, V.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

CRESST is one of the most prominent direct detection experiments for dark matter particles with sub-GeV/c$^2$ 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 $^{6}$Li. This is now possible thanks to new calculations on nuclear matrix elements of this specific isotope of Li. To show the potential of using this particular nuclide for probing dark matter interactions, we used the data collected previously by a CRESST prototype based on LiAlO$_2$ and operated in an above ground test-facility at Max-Planck-Institut f\"ur Physik in Munich, Germany. In particular, the inclusion of $^{6}$Li in the limit calculation drastically improves the result obtained for spin-dependent interactions with neutrons in the whole mass range. The improvement is significant, greater than two order of magnitude for dark matter masses below 1 GeV/c$^2$, compared to the limit previously published with the same data.

Published
2022
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26. First measurements of remoTES cryogenic calorimeters: easy-to-fabricate particle detectors for a wide choice of target materials

Author

Angloher, G., Bharadwaj, M. R., Dafinei, I., Di Marco, N., Einfalt, L., Ferroni, F., Fichtinger, S., Filipponi, A., Frank, T., Friedl, M., Fuss, A., Ge, Z., Heikinheimo, M., Huitu, K., Kellermann, M., Maji, R., Mancuso, M., Pagnanini, L., Petricca, F., Pirro, S., Proebst, F., Profeta, G., Puiu, A., Reindl, F., Schaeffner, K., Schieck, J., Schmiedmayer, D., Schwertner, C., Stahlberg, M., Stendahl, A., Wagner, F., Yue, S., Zema, V., Zhu, Y., Bento, A., Canonica, L., and Garai, A.

Subjects
Physics - Instrumentation and Detectors
Abstract

Low-temperature calorimeters based on a readout via Transition Edge Sensors (TESs) and operated below $100$ mK are well suited for rare event searches with outstanding resolution and low thresholds. We present first experimental results from two detector prototypes using a novel design of the thermometer coupling denoted remoTES, which further extends the applicability of the TES technology by including a wider class of potential absorber materials. In particular, this design facilitates the use of materials whose physical and chemical properties, as e.g. hygroscopicity, low hardness and low melting point, prevent the direct fabrication of the TES onto their surface. This is especially relevant in the context of the COSINUS experiment (Cryogenic Observatory for SIgnals seen in Next-Generation Underground Searches), where sodium iodide (NaI) is used as absorber material. With two remoTES prototype detectors operated in an above-ground R&D facility, we achieve energy resolutions of $\sigma=87.8$ eV for a $2.33$ g silicon absorber and $\sigma = 193.5$ eV for a $2.27$ g $\alpha$-TeO$_{2}$ absorber, respectively. RemoTES calorimeters offer - besides the wider choice of absorber materials - a simpler production process combined with a higher reproducibility for large detector arrays and an enhanced radiopurity standard.

Published
2021
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27. Light dark matter search using a diamond cryogenic detector

Author

Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Canonica, L., D’Addabbo, A., Lorenzo, S. Di, Einfalt, L., Erb, A., Feilitzsch, F. v., Fichtinger, S., Fuchs, D., Garai, A., Ghete, V. M., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Jes̆kovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Kuckuk, S., Langenkämper, A., Mancuso, M., Marini, L., Mauri, B., Meyer, L., Mokina, V., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., and Zema, V.

Published
2024
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28. Improving the Quality of CaWO4 Target Crystals for CRESST

Author

Kinast, A., Angloher, G., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Canonica, L., D’Addabbo, A., Lorenzo, S. Di, Einfalt, L., Erb, A., Feilitzsch, F. V., Iachellini, N. Ferreiro, Fichtinger, S., Fuchs, D., Fuss, A., Garai, A., Ghete, V.-M., Gorla, P., Gupta, S., Hamilton, F., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kluck, H., Kraus, H., Langenkämper, A., Mancuso, M., Marini, L., Mokina, V., Nilima, A., Olmi, M., Ortmann, T., Pagliarone, C., Palušová, V., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schmiedmayer, D., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., and Zema, V.

Published
2022
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29. DoubleTES detectors to investigate the CRESST low energy background: results from above-ground prototypes

Author

Angloher, G, Banik, S, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Fichtinger, S, Fuchs, D, Garai, A, Ghete, V, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Kuckuk, S, Langenkamper, A, Mancuso, M, Marini, L, Mauri, B, Meyer, L, Mokina, V, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Wagner, V, Zema, V, Angloher G., Banik S., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., Lorenzo S. D., Einfalt L., Erb A., Feilitzsch F. V., Fichtinger S., Fuchs D., Garai A., Ghete V. M., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Kuckuk S., Langenkamper A., Mancuso M., Marini L., Mauri B., Meyer L., Mokina V., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Wagner V., Zema V., Angloher, G, Banik, S, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Fichtinger, S, Fuchs, D, Garai, A, Ghete, V, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Kuckuk, S, Langenkamper, A, Mancuso, M, Marini, L, Mauri, B, Meyer, L, Mokina, V, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Wagner, V, Zema, V, Angloher G., Banik S., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., Lorenzo S. D., Einfalt L., Erb A., Feilitzsch F. V., Fichtinger S., Fuchs D., Garai A., Ghete V. M., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Kuckuk S., Langenkamper A., Mancuso M., Marini L., Mauri B., Meyer L., Mokina V., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Wagner V., and Zema V.

Abstract

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.

Published
2024

30. Detector Development for the CRESST Experiment

Author

Angloher, G, Banik, S, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Fichtinger, S, Fuchs, D, Garai, A, Ghete, V, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Ješkovský, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Kuckuk, S, Langenkämper, A, Mancuso, M, Marini, L, Mauri, B, Meyer, L, Mokina, V, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Pröbst, F, Pucci, F, Reindl, F, Rothe, J, Schäffner, K, Schieck, J, Schönert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Angloher G., Banik S., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., Di Lorenzo S., Einfalt L., Erb A., Feilitzsch F. V., Fichtinger S., Fuchs D., Garai A., Ghete V. M., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Ješkovský M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Kuckuk S., Langenkämper A., Mancuso M., Marini L., Mauri B., Meyer L., Mokina V., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Pröbst F., Pucci F., Reindl F., Rothe J., Schäffner K., Schieck J., Schönert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., Zema V., Angloher, G, Banik, S, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Fichtinger, S, Fuchs, D, Garai, A, Ghete, V, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Ješkovský, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Kuckuk, S, Langenkämper, A, Mancuso, M, Marini, L, Mauri, B, Meyer, L, Mokina, V, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Pröbst, F, Pucci, F, Reindl, F, Rothe, J, Schäffner, K, Schieck, J, Schönert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Angloher G., Banik S., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., Di Lorenzo S., Einfalt L., Erb A., Feilitzsch F. V., Fichtinger S., Fuchs D., Garai A., Ghete V. M., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Ješkovský M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Kuckuk S., Langenkämper A., Mancuso M., Marini L., Mauri B., Meyer L., Mokina V., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Pröbst F., Pucci F., Reindl F., Rothe J., Schäffner K., Schieck J., Schönert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., and Zema V.

Abstract

Recently low-mass dark matter direct searches have been hindered by a low-energy background, drastically reducing the physics reach of the experiments. In the CRESST-III experiment, this signal is characterised by a significant increase of events below 200 eV. As the origin of this background is still unknown, it became necessary to develop new detector designs to reach a better understanding of the observations. Within the CRESST collaboration, three new different detector layouts have been developed, and they are presented in this contribution.

Published
2024

31. A likelihood framework for cryogenic scintillating calorimeters used in the CRESST dark matter search

Author

Angloher, G, Banik, S, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Fichtinger, S, Fuchs, D, Garai, A, Ghete, V, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Kuckuk, S, Langenkamper, A, Mancuso, M, Marini, L, Mauri, B, Meyer, L, Mokina, V, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Wagner, V, Zema, V, Angloher G., Banik S., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., Lorenzo S. D., Einfalt L., Erb A., Feilitzsch F. V., Fichtinger S., Fuchs D., Garai A., Ghete V. M., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Kuckuk S., Langenkamper A., Mancuso M., Marini L., Mauri B., Meyer L., Mokina V., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Wagner V., Zema V., Angloher, G, Banik, S, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Fichtinger, S, Fuchs, D, Garai, A, Ghete, V, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Kuckuk, S, Langenkamper, A, Mancuso, M, Marini, L, Mauri, B, Meyer, L, Mokina, V, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Wagner, V, Zema, V, Angloher G., Banik S., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., Lorenzo S. D., Einfalt L., Erb A., Feilitzsch F. V., Fichtinger S., Fuchs D., Garai A., Ghete V. M., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Kuckuk S., Langenkamper A., Mancuso M., Marini L., Mauri B., Meyer L., Mokina V., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Wagner V., and Zema V.

Abstract

Cryogenic scintillating calorimeters are ultra- sensitive particle detectors for rare event searches, particularly for the search for dark matter and the measurement of neutrino properties. These detectors are made from scintillating target crystals generating two signals for each particle interaction. The phonon (heat) signal precisely measures the deposited energy independent of the type of interacting particle. The scintillation light signal yields particle discrimination on an event-by-event basis. This paper presents a likelihood framework modeling backgrounds and a potential dark matter signal in the two-dimensional plane spanned by phonon and scintillation light energies. We apply the framework to data from CaWO4-based detectors operated in the CRESST dark matter search. For the first time, a single likelihood framework is used in CRESST to model the data and extract results on dark matter in one step by using a profile likelihood ratio test. Our framework simultaneously fits (neutron) calibration data and physics (background) data and allows combining data from multiple detectors. Although tailored to CaWO4-targets and the CRESST experiment, the framework can easily be expanded to other materials and experiments using scintillating cryogenic calorimeters for dark matter search and neutrino physics.

Published
2024

32. remoTES: a novel cryogenic detector for rare-event searches

Author

Bharadwaj, M, Angloher, G, Cababie, M, Dafinei, I, Di Marco, N, Einfalt, L, Ferroni, F, Fichtinger, S, Filipponi, A, Frank, T, Friedl, M, Ge, Z, Heikinheimo, M, Hughes, M, Huitu, K, Kellermann, M, Maji, R, Mancuso, M, Pagnanini, L, Petricca, F, Pirro, S, Probst, F, Profeta, G, Puiu, A, Reindl, F, Schaffner, K, Schieck, J, Schmiedmayer, D, Schreiner, P, Schwertner, C, Shera, K, Stahlberg, M, Stendahl, A, Stukel, M, Tresca, C, Wagner, F, Yue, S, Zema, V, Zhu, Y, Bharadwaj M. R., Angloher G., Cababie M., Dafinei I., Di Marco N., Einfalt L., Ferroni F., Fichtinger S., Filipponi A., Frank T., Friedl M., Ge Z., Heikinheimo M., Hughes M. N., Huitu K., Kellermann M., Maji R., Mancuso M., Pagnanini L., Petricca F., Pirro S., Probst F., Profeta G., Puiu A., Reindl F., Schaffner K., Schieck J., Schmiedmayer D., Schreiner P., Schwertner C., Shera K., Stahlberg M., Stendahl A., Stukel M., Tresca C., Wagner F., Yue S., Zema V., Zhu Y., Bharadwaj, M, Angloher, G, Cababie, M, Dafinei, I, Di Marco, N, Einfalt, L, Ferroni, F, Fichtinger, S, Filipponi, A, Frank, T, Friedl, M, Ge, Z, Heikinheimo, M, Hughes, M, Huitu, K, Kellermann, M, Maji, R, Mancuso, M, Pagnanini, L, Petricca, F, Pirro, S, Probst, F, Profeta, G, Puiu, A, Reindl, F, Schaffner, K, Schieck, J, Schmiedmayer, D, Schreiner, P, Schwertner, C, Shera, K, Stahlberg, M, Stendahl, A, Stukel, M, Tresca, C, Wagner, F, Yue, S, Zema, V, Zhu, Y, Bharadwaj M. R., Angloher G., Cababie M., Dafinei I., Di Marco N., Einfalt L., Ferroni F., Fichtinger S., Filipponi A., Frank T., Friedl M., Ge Z., Heikinheimo M., Hughes M. N., Huitu K., Kellermann M., Maji R., Mancuso M., Pagnanini L., Petricca F., Pirro S., Probst F., Profeta G., Puiu A., Reindl F., Schaffner K., Schieck J., Schmiedmayer D., Schreiner P., Schwertner C., Shera K., Stahlberg M., Stendahl A., Stukel M., Tresca C., Wagner F., Yue S., Zema V., and Zhu Y.

Published
2024

33. Background modeling and simulation of the calibration source for the CRESST dark matter search experiment

Author

Banik, S, Angloher, G, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Fichtinger, S, Fuchs, D, Garai, A, Ghete, V, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Kuckuk, S, Langenkamper, A, Mancuso, M, Marini, L, Mauri, B, Meyer, L, Mokina, V, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Banik S., Angloher G., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., Di Lorenzo S., Einfalt L., Erb A., Feilitzsch F. V., Fichtinger S., Fuchs D., Garai A., Ghete V. M., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Kuckuk S., Langenkamper A., Mancuso M., Marini L., Mauri B., Meyer L., Mokina V., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., Zema V., Banik, S, Angloher, G, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Fichtinger, S, Fuchs, D, Garai, A, Ghete, V, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Kuckuk, S, Langenkamper, A, Mancuso, M, Marini, L, Mauri, B, Meyer, L, Mokina, V, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Banik S., Angloher G., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., Di Lorenzo S., Einfalt L., Erb A., Feilitzsch F. V., Fichtinger S., Fuchs D., Garai A., Ghete V. M., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Kuckuk S., Langenkamper A., Mancuso M., Marini L., Mauri B., Meyer L., Mokina V., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., and Zema V.

Abstract

The Cryogenic Rare Event Search with Superconducting Thermometers (CRESST) experiment employs scintillating crystals at extremely low temperatures (O(10 mK)) to search for nuclear recoils from hypothetical dark matter (DM) particles. CRESST has achieved thresholds below 100 eV with a wide range of target materials including CaWO4, LiAlO2, Al2O3, and Si. However, at these energies, the ability to discriminate between potential DM signals and electromagnetic background is insufficient. A detailed Geant4-based electromagnetic background model was developed for CRESST and is being continuously adapted to CRESST's current inventory of detector modules. We use a high-dimensional Bayesian likelihood fit of spectral templates to the measured spectrum to infer activities of various background sources. A template for the calibration source used to calculate the energy scale will be included in the likelihood fit. We present the status of CRESST's background model, and results from the simulation of the energy calibration. Our future plans of improving the background model are also discussed.

Published
2024

34. The COSINUS Underground Cryogenic Facility

Author

Hughes, M, Ackermann, K, Angloher, G, Balata, M, Bharadwaj, M, Brandner, W, Buchsteiner, F, Cababie, M, Dafinei, I, Di Giacinto, A, Di Marco, N, Di Sabatino, U, Einfalt, L, Ferroni, F, Fichtinger, S, Filipponi, A, Frank, T, Friedl, M, Ge, Z, Heikinheimo, M, Huitu, K, Jablonski, C, Kellermann, M, Lang, A, Linzen, L, Maji, R, Mancuso, M, Martella, P, Muhlbauer, P, Pagnanini, L, Petricca, F, Pirro, S, Probst, F, Profeta, G, Puiu, A, Reindl, F, Schaffner, K, Schieck, J, Schlammer, J, Schmiedmayer, D, Schramm, W, Schreiner, P, Schwertner, C, Shera, K, Stadler, R, Stahlberg, M, Stendahl, A, Stukel, M, Sturzer, A, Tresca, C, Wagner, F, Wamsler, D, Yue, S, Zema, V, Zhu, Y, Hughes M. N., Ackermann K., Angloher G., Balata M., Bharadwaj M. R., Brandner W., Buchsteiner F., Cababie M., Dafinei I., Di Giacinto A., Di Marco N., Di Sabatino U., Einfalt L., Ferroni F., Fichtinger S., Filipponi A., Frank T., Friedl M., Ge Z., Heikinheimo M., Huitu K., Jablonski C., Kellermann M., Lang A., Linzen L., Maji R., Mancuso M., Martella P., Muhlbauer P., Pagnanini L., Petricca F., Pirro S., Probst F., Profeta G., Puiu A., Reindl F., Schaffner K., Schieck J., Schlammer J., Schmiedmayer D., Schramm W., Schreiner P., Schwertner C., Shera K., Stadler R., Stahlberg M., Stendahl A., Stukel M., Sturzer A., Tresca C., Wagner F., Wamsler D., Yue S., Zema V., Zhu Y., Hughes, M, Ackermann, K, Angloher, G, Balata, M, Bharadwaj, M, Brandner, W, Buchsteiner, F, Cababie, M, Dafinei, I, Di Giacinto, A, Di Marco, N, Di Sabatino, U, Einfalt, L, Ferroni, F, Fichtinger, S, Filipponi, A, Frank, T, Friedl, M, Ge, Z, Heikinheimo, M, Huitu, K, Jablonski, C, Kellermann, M, Lang, A, Linzen, L, Maji, R, Mancuso, M, Martella, P, Muhlbauer, P, Pagnanini, L, Petricca, F, Pirro, S, Probst, F, Profeta, G, Puiu, A, Reindl, F, Schaffner, K, Schieck, J, Schlammer, J, Schmiedmayer, D, Schramm, W, Schreiner, P, Schwertner, C, Shera, K, Stadler, R, Stahlberg, M, Stendahl, A, Stukel, M, Sturzer, A, Tresca, C, Wagner, F, Wamsler, D, Yue, S, Zema, V, Zhu, Y, Hughes M. N., Ackermann K., Angloher G., Balata M., Bharadwaj M. R., Brandner W., Buchsteiner F., Cababie M., Dafinei I., Di Giacinto A., Di Marco N., Di Sabatino U., Einfalt L., Ferroni F., Fichtinger S., Filipponi A., Frank T., Friedl M., Ge Z., Heikinheimo M., Huitu K., Jablonski C., Kellermann M., Lang A., Linzen L., Maji R., Mancuso M., Martella P., Muhlbauer P., Pagnanini L., Petricca F., Pirro S., Probst F., Profeta G., Puiu A., Reindl F., Schaffner K., Schieck J., Schlammer J., Schmiedmayer D., Schramm W., Schreiner P., Schwertner C., Shera K., Stadler R., Stahlberg M., Stendahl A., Stukel M., Sturzer A., Tresca C., Wagner F., Wamsler D., Yue S., Zema V., and Zhu Y.

Abstract

Cryogenic Observatory for SIgnatures seen in Next-generation Underground Searches (COSINUS) will use cryogenic sodium iodide (NaI) calorimeters to search for dark matter. Recently, the construction of an underground facility at Laboratori Nazionali del Gran Sasso (LNGS) for COSINUS has been completed. The features of the COSINUS facility allow for a low background environment for rare event searches. This facility will house a dry dilution refrigerator, which will sit in a drywell inside a water tank. The water tank will be instrumented with photomultiplier tubes and serve as an active muon veto as well as a passive shield.

Published
2024

35. Optimal Operation of Cryogenic Calorimeters Through Deep Reinforcement Learning

Author

Angloher, G, Banik, S, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Einfalt, L, Erb, A, v. Feilitzsch, F, Fichtinger, S, Fuchs, D, Garai, A, Ghete, V, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kuckuk, S, Kluck, H, Kraus, H, Langenkamper, A, Mancuso, M, Marini, L, Mauri, B, Meyer, L, Mokina, V, Niedermayer, K, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Wagner, V, Willers, M, Zema, V, Heitzinger, C, Waltenberger, W, Angloher G., Banik S., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., Di Lorenzo S., Einfalt L., Erb A., v. Feilitzsch F., Fichtinger S., Fuchs D., Garai A., Ghete V. M., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kuckuk S., Kluck H., Kraus H., Langenkamper A., Mancuso M., Marini L., Mauri B., Meyer L., Mokina V., Niedermayer K., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Wagner V., Willers M., Zema V., Heitzinger C., Waltenberger W., Angloher, G, Banik, S, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Einfalt, L, Erb, A, v. Feilitzsch, F, Fichtinger, S, Fuchs, D, Garai, A, Ghete, V, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kuckuk, S, Kluck, H, Kraus, H, Langenkamper, A, Mancuso, M, Marini, L, Mauri, B, Meyer, L, Mokina, V, Niedermayer, K, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Wagner, V, Willers, M, Zema, V, Heitzinger, C, Waltenberger, W, Angloher G., Banik S., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., Di Lorenzo S., Einfalt L., Erb A., v. Feilitzsch F., Fichtinger S., Fuchs D., Garai A., Ghete V. M., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kuckuk S., Kluck H., Kraus H., Langenkamper A., Mancuso M., Marini L., Mauri B., Meyer L., Mokina V., Niedermayer K., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Wagner V., Willers M., Zema V., Heitzinger C., and Waltenberger W.

Abstract

Cryogenic phonon detectors with transition-edge sensors achieve the best sensitivity to sub-GeV/c2 dark matter interactions with nuclei in current direct detection experiments. In such devices, the temperature of the thermometer and the bias current in its readout circuit need careful optimization to achieve optimal detector performance. This task is not trivial and is typically done manually by an expert. In our work, we automated the procedure with reinforcement learning in two settings. First, we trained on a simulation of the response of three Cryogenic Rare Event Search with Superconducting Thermometers (CRESST) detectors used as a virtual reinforcement learning environment. Second, we trained live on the same detectors operated in the CRESST underground setup. In both cases, we were able to optimize a standard detector as fast and with comparable results as human experts. Our method enables the tuning of large-scale cryogenic detector setups with minimal manual interventions.

Published
2024

36. Light dark matter search using a diamond cryogenic detector

Author

Angloher, G, Banik, S, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Fichtinger, S, Fuchs, D, Garai, A, Ghete, V, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Kuckuk, S, Langenkamper, A, Mancuso, M, Marini, L, Mauri, B, Meyer, L, Mokina, V, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Angloher G., Banik S., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., Lorenzo S. D., Einfalt L., Erb A., Feilitzsch F. V., Fichtinger S., Fuchs D., Garai A., Ghete V. M., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Kuckuk S., Langenkamper A., Mancuso M., Marini L., Mauri B., Meyer L., Mokina V., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., Zema V., Angloher, G, Banik, S, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Fichtinger, S, Fuchs, D, Garai, A, Ghete, V, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Kuckuk, S, Langenkamper, A, Mancuso, M, Marini, L, Mauri, B, Meyer, L, Mokina, V, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Angloher G., Banik S., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., Lorenzo S. D., Einfalt L., Erb A., Feilitzsch F. V., Fichtinger S., Fuchs D., Garai A., Ghete V. M., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Kuckuk S., Langenkamper A., Mancuso M., Marini L., Mauri B., Meyer L., Mokina V., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., and Zema V.

Abstract

Diamond operated as a cryogenic calorimeter is an excellent target for direct detection of low-mass dark matter candidates. Following the realization of the first low-threshold cryogenic detector that uses diamond as absorber for astroparticle physics applications, we now present the resulting exclusion limits on the elastic spin-independent interaction cross-section of dark matter with diamond. We measured two 0.175 g CVD (Chemical Vapor Deposition) diamond samples, each instrumented with a Transition Edge Sensor made of Tungsten (W-TES). Thanks to the energy threshold of just 16.8 eV of one of the two detectors, we set exclusion limits on the elastic spin-independent interaction of dark matter particles with carbon nuclei down to dark matter masses as low as 0.122 GeV/c2. This work shows the scientific potential of cryogenic detectors made from diamond and lays the foundation for the use of this material as target for direct detection dark matter experiments.

Published
2024

37. Observation of a low energy nuclear recoil peak in the neutron calibration data of the CRESST-III experiment

Author

Angloher, G, Banik, S, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Fichtinger, S, Fuchs, D, Fuss, A, Garai, A, Ghete, V, Gerster, S, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Langenkamper, A, Mancuso, M, Marini, L, Meyer, L, Mokina, V, Nilima, A, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Angloher G., Banik S., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., Di Lorenzo S., Einfalt L., Erb A., Feilitzsch F. V., Fichtinger S., Fuchs D., Fuss A., Garai A., Ghete V. M., Gerster S., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Langenkamper A., Mancuso M., Marini L., Meyer L., Mokina V., Nilima A., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., Zema V., Angloher, G, Banik, S, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Fichtinger, S, Fuchs, D, Fuss, A, Garai, A, Ghete, V, Gerster, S, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Langenkamper, A, Mancuso, M, Marini, L, Meyer, L, Mokina, V, Nilima, A, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Angloher G., Banik S., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., Di Lorenzo S., Einfalt L., Erb A., Feilitzsch F. V., Fichtinger S., Fuchs D., Fuss A., Garai A., Ghete V. M., Gerster S., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Langenkamper A., Mancuso M., Marini L., Meyer L., Mokina V., Nilima A., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., and Zema V.

Published
2023

38. First measurements of remoTES cryogenic calorimeters: Easy-to-fabricate particle detectors for a wide choice of target materials

Author

Angloher, G, Bharadwaj, M, Dafinei, I, Di Marco, N, Einfalt, L, Ferroni, F, Fichtinger, S, Filipponi, A, Frank, T, Friedl, M, Fuss, A, Ge, Z, Heikinheimo, M, Huitu, K, Kellermann, M, Maji, R, Mancuso, M, Pagnanini, L, Petricca, F, Pirro, S, Probst, F, Profeta, G, Puiu, A, Reindl, F, Schaffner, K, Schieck, J, Schmiedmayer, D, Schwertner, C, Stahlberg, M, Stendahl, A, Wagner, F, Yue, S, Zema, V, Zhu, Y, Bento, A, Canonica, L, Garai, A, Angloher G, Bharadwaj MR, Dafinei I, Di Marco N, Einfalt L, Ferroni F, Fichtinger S, Filipponi A, Frank T, Friedl M, Fuss A, Ge Z, Heikinheimo M, Huitu K, Kellermann M, Maji R, Mancuso M, Pagnanini L, Petricca F, Pirro S, Probst F, Profeta G, Puiu A, Reindl F, Schaffner K, Schieck J, Schmiedmayer D, Schwertner C, Stahlberg M, Stendahl A, Wagner F, Yue S, Zema V, Zhu Y, Bento A, Canonica L, Garai A, Angloher, G, Bharadwaj, M, Dafinei, I, Di Marco, N, Einfalt, L, Ferroni, F, Fichtinger, S, Filipponi, A, Frank, T, Friedl, M, Fuss, A, Ge, Z, Heikinheimo, M, Huitu, K, Kellermann, M, Maji, R, Mancuso, M, Pagnanini, L, Petricca, F, Pirro, S, Probst, F, Profeta, G, Puiu, A, Reindl, F, Schaffner, K, Schieck, J, Schmiedmayer, D, Schwertner, C, Stahlberg, M, Stendahl, A, Wagner, F, Yue, S, Zema, V, Zhu, Y, Bento, A, Canonica, L, Garai, A, Angloher G, Bharadwaj MR, Dafinei I, Di Marco N, Einfalt L, Ferroni F, Fichtinger S, Filipponi A, Frank T, Friedl M, Fuss A, Ge Z, Heikinheimo M, Huitu K, Kellermann M, Maji R, Mancuso M, Pagnanini L, Petricca F, Pirro S, Probst F, Profeta G, Puiu A, Reindl F, Schaffner K, Schieck J, Schmiedmayer D, Schwertner C, Stahlberg M, Stendahl A, Wagner F, Yue S, Zema V, Zhu Y, Bento A, Canonica L, and Garai A

Published
2023

39. Results on sub-GeV dark matter from a 10 eV threshold CRESST-III silicon detector

Author

Angloher, G, Banik, S, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Ferreiro Iachellini, N, Fichtinger, S, Fuchs, D, Fuss, A, Garai, A, Ghete, V, Gerster, S, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Langenkamper, A, Mancuso, M, Marini, L, Meyer, L, Mokina, V, Nilima, A, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Angloher G., Banik S., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., Di Lorenzo S., Einfalt L., Erb A., Feilitzsch F. V., Ferreiro Iachellini N., Fichtinger S., Fuchs D., Fuss A., Garai A., Ghete V. M., Gerster S., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Langenkamper A., Mancuso M., Marini L., Meyer L., Mokina V., Nilima A., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., Zema V., Angloher, G, Banik, S, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Ferreiro Iachellini, N, Fichtinger, S, Fuchs, D, Fuss, A, Garai, A, Ghete, V, Gerster, S, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Langenkamper, A, Mancuso, M, Marini, L, Meyer, L, Mokina, V, Nilima, A, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Angloher G., Banik S., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., Di Lorenzo S., Einfalt L., Erb A., Feilitzsch F. V., Ferreiro Iachellini N., Fichtinger S., Fuchs D., Fuss A., Garai A., Ghete V. M., Gerster S., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Langenkamper A., Mancuso M., Marini L., Meyer L., Mokina V., Nilima A., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., and Zema V.

Abstract

We present limits on the spin-independent interaction cross section of dark matter particles with silicon nuclei, derived from data taken with a cryogenic calorimeter with 0.35 g target mass operated in the CRESST-III experiment. A baseline nuclear recoil energy resolution of (1.36±0.05) eVnr, currently the lowest reported for macroscopic particle detectors, and a corresponding energy threshold of (10.0±0.2) eVnr have been achieved, improving the sensitivity to light dark matter particles with masses below 160 MeV/c2 by a factor of up to 20 compared to previous results. We characterize the observed low energy excess, and we exclude noise triggers and radioactive contaminations on the crystal surfaces as dominant contributions.

Published
2023

40. Towards an automated data cleaning with deep learning in CRESST

Author

Angloher, G, Banik, S, Bartolot, D, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Dilorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Iachellini, N, Fichtinger, S, Fuchs, D, Fuss, A, Garai, A, Ghete, V, Gerster, S, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Lackner, M, Langenkamper, A, Mancuso, M, Marini, L, Meyer, L, Mokina, V, Nilima, A, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rizvanovic, D, Rothe, J, Schaffner, K, Schieck, J, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Waltenberger, W, Angloher G., Banik S., Bartolot D., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., DiLorenzo S., Einfalt L., Erb A., Feilitzsch F., Iachellini N. F., Fichtinger S., Fuchs D., Fuss A., Garai A., Ghete V. M., Gerster S., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Lackner M., Langenkamper A., Mancuso M., Marini L., Meyer L., Mokina V., Nilima A., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rizvanovic D., Rothe J., Schaffner K., Schieck J., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., Zema V., Waltenberger W., Angloher, G, Banik, S, Bartolot, D, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Dilorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Iachellini, N, Fichtinger, S, Fuchs, D, Fuss, A, Garai, A, Ghete, V, Gerster, S, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Lackner, M, Langenkamper, A, Mancuso, M, Marini, L, Meyer, L, Mokina, V, Nilima, A, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rizvanovic, D, Rothe, J, Schaffner, K, Schieck, J, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Waltenberger, W, Angloher G., Banik S., Bartolot D., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., DiLorenzo S., Einfalt L., Erb A., Feilitzsch F., Iachellini N. F., Fichtinger S., Fuchs D., Fuss A., Garai A., Ghete V. M., Gerster S., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Lackner M., Langenkamper A., Mancuso M., Marini L., Meyer L., Mokina V., Nilima A., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rizvanovic D., Rothe J., Schaffner K., Schieck J., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., Zema V., and Waltenberger W.

Abstract

The CRESST experiment employs cryogenic calorimeters for the sensitive measurement of nuclear recoils induced by dark matter particles. The recorded signals need to undergo a careful cleaning process to avoid wrongly reconstructed recoil energies caused by pile-up and read-out artefacts. We frame this process as a time series classification task and propose to automate it with neural networks. With a data set of over one million labeled records from 68 detectors, recorded between 2013 and 2019 by CRESST, we test the capability of four commonly used neural network architectures to learn the data cleaning task. Our best performing model achieves a balanced accuracy of 0.932 on our test set. We show on an exemplary detector that about half of the wrongly predicted events are in fact wrongly labeled events, and a large share of the remaining ones have a context-dependent ground truth. We furthermore evaluate the recall and selectivity of our classifiers with simulated data. The results confirm that the trained classifiers are well suited for the data cleaning task.

Published
2023

41. Geant4 simulations of the influence of contamination and roughness of the detector surface on background spectra in CRESST

Author

Grüner, Christoph, primary, Angloher, G., additional, Banik, S., additional, Benato, G., additional, Bento, A., additional, Bertolini, A., additional, Breier, R., additional, Bucci, C., additional, Burkhart, J., additional, Canonica, L., additional, D'Addabbo, A., additional, Di Lorenzo, S., additional, Einfalt, L., additional, Erb, A., additional, v. Feilitzsch, F., additional, Fichtinger, S., additional, Fuchs, D., additional, Garai, A., additional, Ghete, V.M., additional, Gorla, P., additional, Guillaumon, P.V., additional, Gupta, S. K., additional, Hauff, D., additional, Ješkovský, M., additional, Jochum, J., additional, Kaznacheeva, M., additional, Kinast, A., additional, Kluck, H., additional, Kraus, H., additional, Kuckuk, S., additional, Langenkämper, A., additional, Mancuso, M., additional, Marini, L., additional, Mauri, B., additional, Meyer, L., additional, Mokina, Valentyna, additional, Olmi, M., additional, Ortmann, T., additional, Pagliarone, C. E., additional, Pattavina, L., additional, Petricca, F., additional, Potzel, W., additional, Povinec, P., additional, Pröbst, F., additional, Pucci, F., additional, Reindl, F., additional, Rothe, J., additional, Schäffner, K., additional, Schieck, J., additional, Schönert, S., additional, Schwertner, C., additional, Stahlberg, M., additional, Stodolsky, L., additional, Strandhagen, C., additional, Strauss, R., additional, Usherov, I., additional, Wagner, F., additional, Willers, M., additional, and Zema, V., additional

Published
2024
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42. Improving the Quality of CaWO4 Target Crystals for CRESST

Author

Kinast, A, Angloher, G, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Canonica, L, D'Addabbo, A, Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Iachellini, N, Fichtinger, S, Fuchs, D, Fuss, A, Garai, A, Ghete, V, Gorla, P, Gupta, S, Hamilton, F, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kluck, H, Kraus, H, Langenkamper, A, Mancuso, M, Marini, L, Mokina, V, Nilima, A, Olmi, M, Ortmann, T, Pagliarone, C, Palusova, V, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Kinast A., Angloher G., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Canonica L., D'Addabbo A., Lorenzo S. D., Einfalt L., Erb A., Feilitzsch F. V., Iachellini N. F., Fichtinger S., Fuchs D., Fuss A., Garai A., Ghete V. -M., Gorla P., Gupta S., Hamilton F., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kluck H., Kraus H., Langenkamper A., Mancuso M., Marini L., Mokina V., Nilima A., Olmi M., Ortmann T., Pagliarone C., Palusova V., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., Zema V., Kinast, A, Angloher, G, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Canonica, L, D'Addabbo, A, Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Iachellini, N, Fichtinger, S, Fuchs, D, Fuss, A, Garai, A, Ghete, V, Gorla, P, Gupta, S, Hamilton, F, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kluck, H, Kraus, H, Langenkamper, A, Mancuso, M, Marini, L, Mokina, V, Nilima, A, Olmi, M, Ortmann, T, Pagliarone, C, Palusova, V, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Kinast A., Angloher G., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Canonica L., D'Addabbo A., Lorenzo S. D., Einfalt L., Erb A., Feilitzsch F. V., Iachellini N. F., Fichtinger S., Fuchs D., Fuss A., Garai A., Ghete V. -M., Gorla P., Gupta S., Hamilton F., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kluck H., Kraus H., Langenkamper A., Mancuso M., Marini L., Mokina V., Nilima A., Olmi M., Ortmann T., Pagliarone C., Palusova V., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., and Zema V.

Abstract

The Cryogenic Rare Event Search with Superconducting Thermometers (CRESST) experiment aims at the direct detection of dark matter particles via their elastic scattering off nuclei in a scintillating CaWO4 target crystal. The CaWO4 crystal is operated together with a light detector at mK temperature and read out by a Transition Edge Sensor. For many years, CaWO4 crystals have successfully been produced in-house at Technical University of Munich (TUM) with a focus on high radiopurity which is crucial to reduce background originating from radioactive contamination. In order to further improve the CaWO4 crystals, an extensive chemical purification of the raw materials and the synthesised CaWO4 powder has been performed. In addition, a temperature gradient simulation of the growth process and subsequently an optimisation of the growth furnace with the goal to reduce the intrinsic stress was carried out. We present results on the intrinsic stress in the CaWO4 crystals and on the CaWO4 powder radiopurity. A crystal grown from the purified material was installed in the current CRESST set-up. The detector is equipped with an instrumented holder which is used to measure the alpha decay rate of the crystal. We present a preliminary analysis showing a significantly reduced intrinsic background from natural decay chains.

Published
2022

43. Probing spin-dependent dark matter interactions with 6 Li: CRESST Collaboration

Author

Angloher, G, Benato, G, Bento, A, Bertoldo, E, Bertolini, A, Breier, R, Bucci, C, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Ferreiro Iachellini, N, Fichtinger, S, Fuchs, D, Fuss, A, Garai, A, Ghete, V, Gorla, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Langenkamper, A, Mancuso, M, Marini, L, Mokina, V, Nilima, A, Olmi, M, Ortmann, T, Pagliarone, C, Palusova, V, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Angloher G., Benato G., Bento A., Bertoldo E., Bertolini A., Breier R., Bucci C., Canonica L., D'Addabbo A., Di Lorenzo S., Einfalt L., Erb A., Feilitzsch F., Ferreiro Iachellini N., Fichtinger S., Fuchs D., Fuss A., Garai A., Ghete V. M., Gorla P., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Langenkamper A., Mancuso M., Marini L., Mokina V., Nilima A., Olmi M., Ortmann T., Pagliarone C., Palusova V., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., Zema V., Angloher, G, Benato, G, Bento, A, Bertoldo, E, Bertolini, A, Breier, R, Bucci, C, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Ferreiro Iachellini, N, Fichtinger, S, Fuchs, D, Fuss, A, Garai, A, Ghete, V, Gorla, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Langenkamper, A, Mancuso, M, Marini, L, Mokina, V, Nilima, A, Olmi, M, Ortmann, T, Pagliarone, C, Palusova, V, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Angloher G., Benato G., Bento A., Bertoldo E., Bertolini A., Breier R., Bucci C., Canonica L., D'Addabbo A., Di Lorenzo S., Einfalt L., Erb A., Feilitzsch F., Ferreiro Iachellini N., Fichtinger S., Fuchs D., Fuss A., Garai A., Ghete V. M., Gorla P., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Langenkamper A., Mancuso M., Marini L., Mokina V., Nilima A., Olmi M., Ortmann T., Pagliarone C., Palusova V., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., and Zema V.

Abstract

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 possible thanks to new calculations on nuclear matrix elements of this specific isotope of Li. To show the potential of using this particular nuclide for probing dark matter interactions, we used the data collected previously by a CRESST prototype based on LiAlO2 and operated in an above ground test-facility at Max-Planck-Institut für Physik in Munich, Germany. In particular, the inclusion of 6Li in the limit calculation drastically improves the result obtained for spin-dependent interactions with neutrons in the whole mass range. The improvement is significant, greater than two order of magnitude for dark matter masses below 1 GeV/c2, compared to the limit previously published with the same data.

Published
2022

44. Testing spin-dependent dark matter interactions with lithium aluminate targets in CRESST-III

Author

Angloher, G, Banik, S, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Ferreiro Iachellini, N, Fichtinger, S, Fuchs, D, Fuss, A, Garai, A, Ghete, V, Gerster, S, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Langenkamper, A, Mancuso, M, Marini, L, Meyer, L, Mokina, V, Nilima, A, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Angloher G., Banik S., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., Di Lorenzo S., Einfalt L., Erb A., Feilitzsch F. V., Ferreiro Iachellini N., Fichtinger S., Fuchs D., Fuss A., Garai A., Ghete V. M., Gerster S., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Langenkamper A., Mancuso M., Marini L., Meyer L., Mokina V., Nilima A., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., Zema V., Angloher, G, Banik, S, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Ferreiro Iachellini, N, Fichtinger, S, Fuchs, D, Fuss, A, Garai, A, Ghete, V, Gerster, S, Gorla, P, Guillaumon, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Langenkamper, A, Mancuso, M, Marini, L, Meyer, L, Mokina, V, Nilima, A, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Angloher G., Banik S., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Burkhart J., Canonica L., D'Addabbo A., Di Lorenzo S., Einfalt L., Erb A., Feilitzsch F. V., Ferreiro Iachellini N., Fichtinger S., Fuchs D., Fuss A., Garai A., Ghete V. M., Gerster S., Gorla P., Guillaumon P. V., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kluck H., Kraus H., Langenkamper A., Mancuso M., Marini L., Meyer L., Mokina V., Nilima A., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., and Zema V.

Abstract

In the past decades, numerous experiments have emerged to unveil the nature of dark matter, one of the most discussed open questions in modern particle physics. Among them, the Cryogenic Rare Event Search with Superconducting Thermometers (CRESST) experiment, located at the Laboratori Nazionali del Gran Sasso, operates scintillating crystals as cryogenic phonon detectors. In this work, we present first results from the operation of two detector modules which both have 10.46 g LiAlO2 targets in CRESST-III. The lithium contents in the crystal are Li6, with an odd number of protons and neutrons, and Li7, with an odd number of protons. By considering both isotopes of lithium and Al27, we set the currently strongest cross section upper limits on spin-dependent interaction of dark matter with protons and neutrons for the mass region between 0.25 and 1.5 GeV/c2.

Published
2022

45. Cosmic activation of Cresst's CaWO4 crystals

Author

Kluck, H, Angloher, G, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Iachellini, N, Fichtinger, S, Fuchs, D, Fuss, A, Garai, A, Ghete, V, Gorla, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kraus, H, Langenkamper, A, Mancuso, M, Marini, L, Mokina, V, Nilima, A, Olmi, M, Ortmann, T, Pagliarone, C, Palusova, V, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Kluck H., Angloher G., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Canonica L., D'Addabbo A., Di Lorenzo S., Einfalt L., Erb A., Feilitzsch F. V., Iachellini N. F., Fichtinger S., Fuchs D., Fuss A., Garai A., Ghete V. M., Gorla P., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kraus H., Langenkamper A., Mancuso M., Marini L., Mokina V., Nilima A., Olmi M., Ortmann T., Pagliarone C., Palusova V., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., Zema V., Kluck, H, Angloher, G, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Iachellini, N, Fichtinger, S, Fuchs, D, Fuss, A, Garai, A, Ghete, V, Gorla, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kraus, H, Langenkamper, A, Mancuso, M, Marini, L, Mokina, V, Nilima, A, Olmi, M, Ortmann, T, Pagliarone, C, Palusova, V, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Pucci, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Kluck H., Angloher G., Benato G., Bento A., Bertolini A., Breier R., Bucci C., Canonica L., D'Addabbo A., Di Lorenzo S., Einfalt L., Erb A., Feilitzsch F. V., Iachellini N. F., Fichtinger S., Fuchs D., Fuss A., Garai A., Ghete V. M., Gorla P., Gupta S., Hauff D., Jeskovsky M., Jochum J., Kaznacheeva M., Kinast A., Kraus H., Langenkamper A., Mancuso M., Marini L., Mokina V., Nilima A., Olmi M., Ortmann T., Pagliarone C., Palusova V., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Pucci F., Reindl F., Rothe J., Schaffner K., Schieck J., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Usherov I., Wagner F., Willers M., and Zema V.

Abstract

The Cresst experiment searches for dark matter induced nuclear recoils inside CaWO4 based cryogenic calorimeters at the Laboratori Nazionali del Gran Sasso (LNGS) in Italy. To identify reliably a potential signal, a precise understanding of its background budget is crucial. An important background category could be “cosmogenics”: radionuclides produced via interactions with cosmic rays, mainly during the crystal production at surface facilities. Albeit CaWO4 is a well-established calorimetric material, no systematic study of its susceptibility for cosmic activation existed so far. In this contribution, we will first report the exposure profile of Cresst's in-house grown TUM93 crystal to cosmic rays. Then we will identify the most prominent cosmogenics via Activia calculations. Afterwards we discuss the expected background spectrum based on Geant4 simulations and compare it to measurements.

Published
2022

46. Secular Equilibrium Assessment in a CaWO4 Target Crystal from the Dark Matter Experiment CRESST using Bayesian Likelihood Normalisation

Author

Angloher, G, Banik, S, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Iachellini, N, Fichtinger, S, Fuchs, D, Fuss, A, Garai, A, Ghete, V, Gorla, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Langenkämper, A, Mancuso, M, Marini, L, Mokina, V, Nilima, A, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Pröbst, F, Pucci, F, Reindl, F, Rothe, J, Schäffner, K, Schieck, J, Schmiedmayer, D, Schönert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Ferella, F, Laubenstein, M, Nisi, S, Feilitzsch, FV, Iachellini, NF, Ghete, VM, Angloher, G, Banik, S, Benato, G, Bento, A, Bertolini, A, Breier, R, Bucci, C, Burkhart, J, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Einfalt, L, Erb, A, Feilitzsch, F, Iachellini, N, Fichtinger, S, Fuchs, D, Fuss, A, Garai, A, Ghete, V, Gorla, P, Gupta, S, Hauff, D, Jeskovsky, M, Jochum, J, Kaznacheeva, M, Kinast, A, Kluck, H, Kraus, H, Langenkämper, A, Mancuso, M, Marini, L, Mokina, V, Nilima, A, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Pröbst, F, Pucci, F, Reindl, F, Rothe, J, Schäffner, K, Schieck, J, Schmiedmayer, D, Schönert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Usherov, I, Wagner, F, Willers, M, Zema, V, Ferella, F, Laubenstein, M, Nisi, S, Feilitzsch, FV, Iachellini, NF, and Ghete, VM

Abstract

CRESST is a leading direct detection sub-GeVc−2 dark matter experiment. During its second phase, cryogenic bolometers were used to detect nuclear recoils off the CaWO4 target crystal nuclei. The previously established electromagnetic background model relies on Secular Equilibrium (SE) assumptions. In this work, a validation of SE is attempted by comparing two likelihood-based normalisation results using a recently developed spectral template normalisation method based on Bayesian likelihood. Albeit we find deviations from SE in some cases we conclude that these deviations are artefacts of the fit and that the assumptions of SE is physically meaningful.

Published
2023

47. Secular equilibrium assessment in a CaWO4 target crystal from the dark matter experiment CRESST using Bayesian likelihood normalisation

Author

Angloher, G., primary, Banik, S., additional, Benato, G., additional, Bento, A., additional, Bertolini, A., additional, Breier, R., additional, Bucci, C., additional, Burkhart, J., additional, Canonica, L., additional, D’Addabbo, A., additional, Di Lorenzo, S., additional, Einfalt, L., additional, Erb, A., additional, Feilitzsch, F.v., additional, Ferreiro Iachellini, N., additional, Fichtinger, S., additional, Fuchs, D., additional, Fuss, A., additional, Garai, A., additional, Ghete, V.M., additional, Gorla, P., additional, Gupta, S., additional, Hauff, D., additional, Ješkovský, M., additional, Jochum, J., additional, Kaznacheeva, M., additional, Kinast, A., additional, Kluck, H., additional, Kraus, H., additional, Langenkämper, A., additional, Mancuso, M., additional, Marini, L., additional, Mokina, V., additional, Nilima, A., additional, Olmi, M., additional, Ortmann, T., additional, Pagliarone, C., additional, Pattavina, L., additional, Petricca, F., additional, Potzel, W., additional, Povinec, P., additional, Pröbst, F., additional, Pucci, F., additional, Reindl, F., additional, Rothe, J., additional, Schäffner, K., additional, Schieck, J., additional, Schmiedmayer, D., additional, Schönert, S., additional, Schwertner, C., additional, Stahlberg, M., additional, Stodolsky, L., additional, Strandhagen, C., additional, Strauss, R., additional, Usherov, I., additional, Wagner, F., additional, Willers, M., additional, Zema, V., additional, Ferella, F., additional, Laubenstein, M., additional, and Nisi, S., additional

Published
2023
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48. First measurements of remoTES cryogenic calorimeters: Easy-to-fabricate particle detectors for a wide choice of target materials

Author

Angloher, G., primary, Bharadwaj, M.R., additional, Dafinei, I., additional, Di Marco, N., additional, Einfalt, L., additional, Ferroni, F., additional, Fichtinger, S., additional, Filipponi, A., additional, Frank, T., additional, Friedl, M., additional, Fuss, A., additional, Ge, Z., additional, Heikinheimo, M., additional, Huitu, K., additional, Kellermann, M., additional, Maji, R., additional, Mancuso, M., additional, Pagnanini, L., additional, Petricca, F., additional, Pirro, S., additional, Pröbst, F., additional, Profeta, G., additional, Puiu, A., additional, Reindl, F., additional, Schäffner, K., additional, Schieck, J., additional, Schmiedmayer, D., additional, Schwertner, C., additional, Stahlberg, M., additional, Stendahl, A., additional, Wagner, F., additional, Yue, S., additional, Zema, V., additional, Zhu, Y., additional, Bento, A., additional, Canonica, L., additional, and Garai, A., additional

Published
2023
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49. EXCESS workshop: Descriptions of rising low-energy spectra

Author

Adari, Prakruth, primary, Aguilar-Arevalo, Alexis A., additional, Amidei, Dante, additional, Angloher, G., additional, Armengaud, Eric, additional, Augier, C., additional, Balogh, Levente, additional, Banik, S., additional, Baxter, David, additional, Beaufort, C., additional, Beaulieu, G., additional, Belov, V., additional, Ben Gal, Y., additional, Benato, Giovanni, additional, Benoît, Alain, additional, Bento, Antonio, additional, Bergé, Laurent, additional, Bertolini, Andrea, additional, Bhattacharyya, R., additional, Billard, J., additional, Bloch, Itay M., additional, Botti, A., additional, Breier, Robert, additional, Bres, G., additional, Bret, J-.L., additional, Broniatowski, A., additional, Brossard, Alexis, additional, Bucci, Carlo, additional, Bunker, Raymond, additional, Cababie, M., additional, Calvo, M., additional, Camus, P., additional, Cancelo, G., additional, Canonica, Lucia, additional, Cappella, Fabio, additional, Cardani, Laura, additional, Caron, Jean-François, additional, Casali, N., additional, del Castello, G., additional, Cazes, Aurélie, additional, Cerulli, Riccardo, additional, Cervantes Vergara, B.A., additional, Chaize, D., additional, Chapellier, M., additional, Chaplinsky, L., additional, Charlieux, F., additional, Chaudhuri, M., additional, Chavarria, Alvaro E., additional, Chemin, G., additional, Chen, Ran, additional, Chen, Hao, additional, Chierchie, F., additional, Colantoni, I., additional, Colas, J., additional, Cooley, Jodi, additional, Coquillat, Jean-Marie, additional, Corcoran, Emily, additional, Crawford, S., additional, Crisler, Michael, additional, Cruciani, Angelo, additional, Cushman, Priscilla, additional, D'Addabbo, Antonio, additional, D'Olivo, Juan Carlos, additional, Dastgheibi-Fard, A., additional, De Jésus, Maria, additional, Deng, Y., additional, Dent, James, additional, Depaoli, Eliana, additional, Dering, Koby, additional, Dharani, Sukeerthi, additional, Di Lorenzo, S., additional, Drlica-Wagner, Alex, additional, Dumoulin, Louis, additional, Durnford, Daniel, additional, Dutta, Bhaskar, additional, Einfalt, L., additional, Erb, Anna, additional, Erhart, A., additional, Essig, Rouven, additional, Estrada, Juan, additional, Etzion, Erez, additional, Exshaw, O., additional, Favela-Perez, F., additional, von Feilitzsch, F., additional, Fernandez Moroni, Guillermo, additional, Ferreiro Iachellini, Nahuel, additional, Ferriol, S., additional, Fichtinger, S., additional, Figueroa-Feliciano, Enectalí, additional, Filippini, J.-B., additional, Filosofov, Dmitry, additional, Formaggio, Joseph A., additional, Friedl, Markus, additional, Fuard, S., additional, Fuchs, Dominik, additional, Fuss, Alexander, additional, Gaïor, R., additional, Garai, Abhijit, additional, Garrah, Carter, additional, Gascon, J., additional, Gerbier, Gilles, additional, Ghaith, Muad, additional, Ghete, V. M., additional, Gift, Daniel, additional, Giomataris, I., additional, Giroux, Guillaume, additional, Giuliani, A., additional, Gorel, Pierre, additional, Gorla, Paolo, additional, Goupy, C., additional, Goupy, J., additional, Goy, C., additional, Gros, M., additional, Gros, Philippe, additional, Guardincerri, Yann, additional, Guerin, C., additional, Guidi, Vincenzo, additional, Guillaudin, O., additional, Gupta, S., additional, Guy, E., additional, Harrington, Patrick, additional, Hauff, D., additional, Heine, S. T., additional, Hertel, Scott A., additional, Holland, Stephen, additional, Hong, Z., additional, Hoppe, Eric W., additional, Hossbach, Todd W., additional, Ianigro, J.-C., additional, Iyer, Vivek, additional, Jastram, Andrew, additional, Ješkovský, Miroslav, additional, Jin, Y., additional, Jochum, Josef, additional, Johnston, J. P., additional, Juillard, A., additional, Karaivanov, Dimitar, additional, Kashyap, V., additional, Katsioulas, Ioannis, additional, Kazarcev, S., additional, Kaznacheeva, Margarita, additional, Kelly, Fiona, additional, Kilminster, B., additional, Kinast, Angelina, additional, Klinkenberg, L., additional, Kluck, Holger, additional, Knights, Patrick, additional, Korn, Yaron, additional, Kraus, Hans, additional, von Krosigk, Belina, additional, Kubik, Andrew, additional, Kurinsky, Noah, additional, Lamblin, Jacob, additional, Langenkämper, Alexander, additional, Langrock, S., additional, Lasserre, Thierry, additional, Lattaud, H., additional, Lautridou, P., additional, Lawson, Ian, additional, Lee, S.-J., additional, Lee, M., additional, Letessier-Selvon, Antoine, additional, Lhuillier, D., additional, Li, M., additional, Lin, Y.-T., additional, Lubashevskiy, Alexey, additional, Mahaparta, Rupak, additional, Maludze, Sandro, additional, Mancuso, Michele, additional, Manthos, Ioannis, additional, Marini, Laura, additional, Marnieros, S., additional, Martin, Ryan D., additional, Matalon, Ariel, additional, Matthews, J., additional, Mauri, B., additional, Mayer, D. W., additional, Mazzolari, Andrea, additional, Mazzucato, E., additional, Meyer zu Theenhausen, Hanno, additional, Michielin, E., additional, Minet, J., additional, Mirabolfathi, Nader, additional, v. Mirbach, K., additional, Misiak, Dimitri, additional, Mitra, P., additional, Mocellin, J.-L., additional, Mohanty, Bedangadas, additional, Mokina, Valentyna, additional, Mols, J.-P., additional, Monfardini, Alessandro, additional, Mounier, F., additional, Munagavalasa, Sravan, additional, Muraz, Jean-François, additional, Navick, X.-F., additional, Neep, Thomas, additional, Neog, Himangshu, additional, Neyrial, H., additional, Nikolopoulos, Kostas, additional, Nilima, Athoy, additional, Nones, C., additional, Novati, Valentina, additional, O'Brien, Paul, additional, Oberauer, L., additional, Olivieri, E., additional, Olmi, Alessandro, additional, Onillon, A., additional, Oriol, C., additional, Orly, A., additional, Orrell, John L., additional, Ortmann, T., additional, Overman, C. T., additional, Pagliarone, Carmine Elvezio, additional, Palušová, Veronika, additional, Pari, P., additional, Patel, P. K., additional, Pattavina, Luca, additional, Petricca, Federica, additional, Piers, Alexander, additional, Pinckney, Harold D., additional, Piro, Marie-Cécile, additional, Platt, Mark, additional, Poda, D., additional, Ponomarev, Dmitry, additional, Potzel, Walter, additional, Povinec, Pavel, additional, Pröbst, F., additional, Privitera, P., additional, Pucci, F., additional, Ramanathan, K., additional, Real, J.-S., additional, Redon, T., additional, Reindl, Florian, additional, Ren, R., additional, Robert, Adeline, additional, Da Rocha, Julia, additional, Rodrigues, D., additional, Rogly, R., additional, Rothe, Johannes, additional, Rowe, Noah, additional, Rozov, Sergey, additional, Rozova, I., additional, Saab, Tarek, additional, Saffold, Nathan, additional, Salagnac, T., additional, Sander, Joel, additional, Sanglard, Veronique, additional, Santos, D., additional, Sarkis, Youssef, additional, Savu, V., additional, Savvidis, G., additional, Savvidis, I., additional, Schönert, S., additional, Schäffner, Karoline, additional, Schermer, Nicole, additional, Schieck, Jochen, additional, Schmidt, Benjamin, additional, Schmiedmayer, D., additional, Schwertner, C., additional, Scola, L., additional, Settimo, Mariangela, additional, Shevchik, Ye., additional, Sibille, Valérian, additional, Sidelnik, Ivan, additional, Singal, Aman, additional, Smida, Radomir, additional, Sofo Haro, Miguel, additional, Soldner, Torsten, additional, Stachurska, Juliana, additional, Stahlberg, Martin, additional, Stefanazzi, Leandro, additional, Stodolsky, Leo, additional, Strandhagen, Christian, additional, Strauss, R., additional, Stutz, A., additional, Thomas, R., additional, Thompson, A., additional, Tiffenberg, Javier, additional, Tomei, Claudia, additional, Traina, M., additional, Uemura, Sho, additional, Usherov, I., additional, Vagneron, L., additional, Van De Pontseele, Wouter, additional, Vázquez de Sola Fernández, Francisco Andrés, additional, Vidal, M., additional, Vignati, M., additional, Virto, A. L., additional, Vivier, M., additional, Volansky, Tomer, additional, Wagner, V., additional, Wagner, Felix, additional, Walker, Joel, additional, Ward, R., additional, Watkins, Samuel L., additional, Wex, A., additional, Willers, Michael, additional, Wilson, M. J., additional, Winslow, Lindley, additional, Yakushev, Evgeny, additional, Yu, T.-T., additional, Zampaolo, M., additional, Zaytsev, Alexander, additional, Zema, Vanessa, additional, Zinatulina, Daniya, additional, and Zolotarova, A., additional

Published
2022
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50. Probing spin-dependent dark matter interactions with $$^6$$ <math> <msup> <mrow></mrow> <mn>6</mn> </msup> </math> Li

Author

Angloher, G., Benato, G., Bento, A., Bertoldo, E., Bertolini, A., Breier, R., Bucci, C., Canonica, L., D’Addabbo, A., Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F., Ferreiro Iachellini, N., Fichtinger, S., Fuchs, D., Fuss, A., Garai, A., Ghete, V., Gorla, P., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Langenkämper, A., Mancuso, M., Marini, L., Mokina, V., Nilima, A., Olmi, M., Ortmann, T., Pagliarone, C., Palušová, V., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl , F., Rothe, J., Schäffner, K., Schieck, J., Schmiedmayer, D., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., and Zema, V.

Abstract

CRESST is one of the most prominent direct detection experiments for dark matter particles with sub-GeV/c $$^2$$ 2 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 $$^{6}$$ 6 Li. This is now possible thanks to new calculations on nuclear matrix elements of this specific isotope of Li. To show the potential of using this particular nuclide for probing dark matter interactions, we used the data collected previously by a CRESST prototype based on LiAlO $$_2$$ 2 and operated in an above ground test-facility at Max-Planck-Institut für Physik in Munich, Germany. In particular, the inclusion of $$^{6}$$ 6 Li in the limit calculation drastically improves the result obtained for spin-dependent interactions with neutrons in the whole mass range. The improvement is significant, greater than two order of magnitude for dark matter masses below 1 GeV/c $$^2$$ 2 , compared to the limit previously published with the same data.

Published
2022

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