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1. Searches for Light Dark Matter with the CRESST-III Experiment

Author

Mancuso, M, Abdelhameed, A, Angloher, G, Breier, R, Bauer, P, Bento, A, Bertoldo, E, Bucci, C, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Erb, A, von Feilitzsch, F, Ferreiro Iachellini, N, Fichtinger, S, Fuss, A, Gorla, P, Hauff, D, Jeskovsky, M, Jochum, J, Kaizer, J, Kinast, A, Kluck, H, Kraus, H, Langenkamper, A, Mokina, V, Mondragon, E, Olmi, M, Ortmann, T, Pagliarone, C, Palusova, V, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schipperges, V, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Turkoglu, C, Usherov, I, Willers, M, Zema, V, Zeman, J, Mancuso M., Abdelhameed A. H., Angloher G., Breier R., Bauer P., Bento A., Bertoldo E., Bucci C., Canonica L., D'Addabbo A., Di Lorenzo S., Erb A., von Feilitzsch F., Ferreiro Iachellini N., Fichtinger S., Fuss A., Gorla P., Hauff D., Jeskovsky M., Jochum J., Kaizer J., Kinast A., Kluck H., Kraus H., Langenkamper A., Mokina V., Mondragon E., Olmi M., Ortmann T., Pagliarone C., Palusova V., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Reindl F., Rothe J., Schaffner K., Schieck J., Schipperges V., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Turkoglu C., Usherov I., Willers M., Zema V., Zeman J., Mancuso, M, Abdelhameed, A, Angloher, G, Breier, R, Bauer, P, Bento, A, Bertoldo, E, Bucci, C, Canonica, L, D'Addabbo, A, Di Lorenzo, S, Erb, A, von Feilitzsch, F, Ferreiro Iachellini, N, Fichtinger, S, Fuss, A, Gorla, P, Hauff, D, Jeskovsky, M, Jochum, J, Kaizer, J, Kinast, A, Kluck, H, Kraus, H, Langenkamper, A, Mokina, V, Mondragon, E, Olmi, M, Ortmann, T, Pagliarone, C, Palusova, V, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schipperges, V, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Turkoglu, C, Usherov, I, Willers, M, Zema, V, Zeman, J, Mancuso M., Abdelhameed A. H., Angloher G., Breier R., Bauer P., Bento A., Bertoldo E., Bucci C., Canonica L., D'Addabbo A., Di Lorenzo S., Erb A., von Feilitzsch F., Ferreiro Iachellini N., Fichtinger S., Fuss A., Gorla P., Hauff D., Jeskovsky M., Jochum J., Kaizer J., Kinast A., Kluck H., Kraus H., Langenkamper A., Mokina V., Mondragon E., Olmi M., Ortmann T., Pagliarone C., Palusova V., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Reindl F., Rothe J., Schaffner K., Schieck J., Schipperges V., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Turkoglu C., Usherov I., Willers M., Zema V., and Zeman J.

Abstract

Cryogenic Rare Event Search with Superconducting Thermometers (CRESST) is a long-standing direct dark matter detection experiment with cryogenic detectors located at the underground facility Laboratori Nazionali del Gran Sasso in Italy. CRESST-III, the third generation of CRESST, was specifically designed to have a world-leading sensitivity for low-mass dark matter (DM) (less than 2 GeV/c 2) to probe the spin-independent DM-nucleus cross section. At present, a large part of the parameter space for spin-independent scattering off nuclei remains untested for dark matter particles with masses below few GeV/c 2 although many motivated theoretical models having been proposed. The CRESST-III experiment employs scintillating CaWO 4 crystals of ∼ 25 g as target material for dark matter interactions operated as cryogenic scintillating calorimeters at ∼ 10 mK. CRESST-III first data taking was successfully completed in 2018, achieving an unprecedented energy threshold for nuclear recoils. This result extended the present sensitivity to DM particles as light as ∼ 160 MeV/c 2. In this paper, an overview of the CRESST-III detectors and results will be presented.

Published
2020

2. Geant4-based electromagnetic background model for the CRESST dark matter experiment

Author

Abdelhameed, A, Angloher, G, Bauer, P, Bento, A, Bertoldo, E, Breier, R, Bucci, C, Canonica, L, D'Addabbo, A, Lorenzo, S, Erb, A, Feilitzsch, F, Iachellini, N, Fichtinger, S, Fuss, A, Gorla, P, Hauff, D, Jeskovsky, M, Jochum, J, Kaizer, J, Kinast, A, Kluck, H, Kraus, H, Langenkamper, A, Mancuso, M, Mokina, V, Mondragon, E, Olmi, M, Ortmann, T, Pagliarone, C, Palusova, V, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schipperges, V, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Turkoglu, C, Usherov, I, Willers, M, Zema, V, Zeman, J, Abdelhameed A. H., Angloher G., Bauer P., Bento A., Bertoldo E., Breier R., Bucci C., Canonica L., D'Addabbo A., Lorenzo S. D., Erb A., Feilitzsch F., Iachellini N. F., Fichtinger S., Fuss A., Gorla P., Hauff D., Jeskovsky M., Jochum J., Kaizer J., Kinast A., Kluck H., Kraus H., Langenkamper A., Mancuso M., Mokina V., Mondragon E., Olmi M., Ortmann T., Pagliarone C., Palusova V., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Reindl F., Rothe J., Schaffner K., Schieck J., Schipperges V., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Turkoglu C., Usherov I., Willers M., Zema V., Zeman J., Abdelhameed, A, Angloher, G, Bauer, P, Bento, A, Bertoldo, E, Breier, R, Bucci, C, Canonica, L, D'Addabbo, A, Lorenzo, S, Erb, A, Feilitzsch, F, Iachellini, N, Fichtinger, S, Fuss, A, Gorla, P, Hauff, D, Jeskovsky, M, Jochum, J, Kaizer, J, Kinast, A, Kluck, H, Kraus, H, Langenkamper, A, Mancuso, M, Mokina, V, Mondragon, E, Olmi, M, Ortmann, T, Pagliarone, C, Palusova, V, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schipperges, V, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Turkoglu, C, Usherov, I, Willers, M, Zema, V, Zeman, J, Abdelhameed A. H., Angloher G., Bauer P., Bento A., Bertoldo E., Breier R., Bucci C., Canonica L., D'Addabbo A., Lorenzo S. D., Erb A., Feilitzsch F., Iachellini N. F., Fichtinger S., Fuss A., Gorla P., Hauff D., Jeskovsky M., Jochum J., Kaizer J., Kinast A., Kluck H., Kraus H., Langenkamper A., Mancuso M., Mokina V., Mondragon E., Olmi M., Ortmann T., Pagliarone C., Palusova V., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Reindl F., Rothe J., Schaffner K., Schieck J., Schipperges V., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Turkoglu C., Usherov I., Willers M., Zema V., and Zeman J.

Abstract

The CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) dark matter search experiment aims for the detection of dark matter particles via elastic scattering off nuclei in CaWO 4 crystals. To understand the CRESST electromagnetic background due to the bulk contamination in the employed materials, a model based on Monte Carlo simulations was developed using the Geant4 simulation toolkit. The results of the simulation are applied to the TUM40 detector module of CRESST-II phase 2. We are able to explain up to (68±16)% of the electromagnetic background in the energy range between 1 and 40keV.

Published
2019

3. First results on sub-GeV spin-dependent dark matter interactions with 7 Li

Author

Abdelhameed, A, Angloher, G, Bauer, P, Bento, A, Bertoldo, E, Bucci, C, Canonica, L, D'Addabbo, A, Defay, X, Di Lorenzo, S, Erb, A, Feilitzsch, F, Iachellini, N, Fichtinger, S, Fuss, A, Gorla, P, Hauff, D, Jochum, J, Kinast, A, Kluck, H, Kraus, H, Langenkamper, A, Mancuso, M, Mokina, V, Mondragon, E, Munster, A, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Probst, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schipperges, V, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Turkoglu, C, Usherov, I, Willers, M, Zema, V, Chapellier, M, Giuliani, A, Nones, C, Poda, D, Shlegel, V, Velazquez, M, Zolotarova, A, Abdelhameed A. H., Angloher G., Bauer P., Bento A., Bertoldo E., Bucci C., Canonica L., D'Addabbo A., Defay X., Di Lorenzo S., Erb A., Feilitzsch F., Iachellini N. F., Fichtinger S., Fuss A., Gorla P., Hauff D., Jochum J., Kinast A., Kluck H., Kraus H., Langenkamper A., Mancuso M., Mokina V., Mondragon E., Munster A., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Probst F., Reindl F., Rothe J., Schaffner K., Schieck J., Schipperges V., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Turkoglu C., Usherov I., Willers M., Zema V., Chapellier M., Giuliani A., Nones C., Poda D. V., Shlegel V. N., Velazquez M., Zolotarova A. S., Abdelhameed, A, Angloher, G, Bauer, P, Bento, A, Bertoldo, E, Bucci, C, Canonica, L, D'Addabbo, A, Defay, X, Di Lorenzo, S, Erb, A, Feilitzsch, F, Iachellini, N, Fichtinger, S, Fuss, A, Gorla, P, Hauff, D, Jochum, J, Kinast, A, Kluck, H, Kraus, H, Langenkamper, A, Mancuso, M, Mokina, V, Mondragon, E, Munster, A, Olmi, M, Ortmann, T, Pagliarone, C, Pattavina, L, Petricca, F, Potzel, W, Probst, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schipperges, V, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Turkoglu, C, Usherov, I, Willers, M, Zema, V, Chapellier, M, Giuliani, A, Nones, C, Poda, D, Shlegel, V, Velazquez, M, Zolotarova, A, Abdelhameed A. H., Angloher G., Bauer P., Bento A., Bertoldo E., Bucci C., Canonica L., D'Addabbo A., Defay X., Di Lorenzo S., Erb A., Feilitzsch F., Iachellini N. F., Fichtinger S., Fuss A., Gorla P., Hauff D., Jochum J., Kinast A., Kluck H., Kraus H., Langenkamper A., Mancuso M., Mokina V., Mondragon E., Munster A., Olmi M., Ortmann T., Pagliarone C., Pattavina L., Petricca F., Potzel W., Probst F., Reindl F., Rothe J., Schaffner K., Schieck J., Schipperges V., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Turkoglu C., Usherov I., Willers M., Zema V., Chapellier M., Giuliani A., Nones C., Poda D. V., Shlegel V. N., Velazquez M., and Zolotarova A. S.

Abstract

In this work, we want to highlight the potential of lithium as a target for spin-dependent dark matter search in cryogenic experiments, with a special focus on the low-mass region of the parameter space. We operated a prototype detector module based on a Li 2MoO 4 target crystal in an above-ground laboratory. Despite the high background environment, the detector sets a competitive limit on spin-dependent interactions of dark matter particles with protons and neutrons for masses between 0.8GeV/c2 and 1.5GeV/c2.

Published
2019

4. Erratum to: Geant4-based electromagnetic background model for the CRESST dark matter experiment (The European Physical Journal C, (2019), 79, 10, (881), 10.1140/epjc/s10052-019-7385-0)

Author

Abdelhameed A. H., Abdelhameed, A, Angloher, G, Bauer, P, Bento, A, Bertoldo, E, Breier, R, Bucci, C, Canonica, L, D'Addabbo, A, Lorenzo, S, Erb, A, Feilitzsch, F, Iachellini, N, Fichtinger, S, Fuss, A, Gorla, P, Hauff, D, Jeskovsky, M, Jochum, J, Kaizer, J, Kinast, A, Kluck, H, Kraus, H, Langenkamper, A, Mancuso, M, Mokina, V, Mondragon, E, Olmi, M, Ortmann, T, Pagliarone, C, Palusova, V, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schipperges, V, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Turkoglu, C, Usherov, I, Willers, M, Zema, V, Zeman, J, Abdelhameed A. H., Angloher G., Bauer P., Bento A., Bertoldo E., Breier R., Bucci C., Canonica L., D'Addabbo A., Lorenzo S. D., Erb A., Feilitzsch F., Iachellini N. F., Fichtinger S., Fuss A., Gorla P., Hauff D., Jeskovsky M., Jochum J., Kaizer J., Kinast A., Kluck H., Kraus H., Langenkamper A., Mancuso M., Mokina V., Mondragon E., Olmi M., Ortmann T., Pagliarone C., Palusova V., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Reindl F., Rothe J., Schaffner K., Schieck J., Schipperges V., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Turkoglu C., Usherov I., Willers M., Zema V., Zeman J., Abdelhameed A. H., Abdelhameed, A, Angloher, G, Bauer, P, Bento, A, Bertoldo, E, Breier, R, Bucci, C, Canonica, L, D'Addabbo, A, Lorenzo, S, Erb, A, Feilitzsch, F, Iachellini, N, Fichtinger, S, Fuss, A, Gorla, P, Hauff, D, Jeskovsky, M, Jochum, J, Kaizer, J, Kinast, A, Kluck, H, Kraus, H, Langenkamper, A, Mancuso, M, Mokina, V, Mondragon, E, Olmi, M, Ortmann, T, Pagliarone, C, Palusova, V, Pattavina, L, Petricca, F, Potzel, W, Povinec, P, Probst, F, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schipperges, V, Schmiedmayer, D, Schonert, S, Schwertner, C, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Turkoglu, C, Usherov, I, Willers, M, Zema, V, Zeman, J, Abdelhameed A. H., Angloher G., Bauer P., Bento A., Bertoldo E., Breier R., Bucci C., Canonica L., D'Addabbo A., Lorenzo S. D., Erb A., Feilitzsch F., Iachellini N. F., Fichtinger S., Fuss A., Gorla P., Hauff D., Jeskovsky M., Jochum J., Kaizer J., Kinast A., Kluck H., Kraus H., Langenkamper A., Mancuso M., Mokina V., Mondragon E., Olmi M., Ortmann T., Pagliarone C., Palusova V., Pattavina L., Petricca F., Potzel W., Povinec P., Probst F., Reindl F., Rothe J., Schaffner K., Schieck J., Schipperges V., Schmiedmayer D., Schonert S., Schwertner C., Stahlberg M., Stodolsky L., Strandhagen C., Strauss R., Turkoglu C., Usherov I., Willers M., Zema V., and Zeman J.

Abstract

The original version of this article unfortunately contains mistakes.

Published
2019

5. Results on MeV-scale dark matter from a gram-scale cryogenic calorimeter operated above ground

Author

Angloher, G, Bauer, P, Bento, A, Bucci, C, Canonica, L, Defay, X, Erb, A, Feilitzsch, F, Iachellini, N, Gorla, P, Gutlein, A, Hauff, D, Jochum, J, Kiefer, M, Kluck, H, Kraus, H, Lanfranchi, J, Langenkamper, A, Loebell, J, Mancuso, M, Mondragon, E, Munster, A, Oberauer, L, Pagliarone, C, Petricca, F, Potzel, W, Probst, F, Puig, R, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schonert, S, Seidel, W, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Tanzke, A, Thi, H, Turkoglu, C, Uffinger, M, Ulrich, A, Usherov, I, Wawoczny, S, Willers, M, Wustrich, M, Zoller, A, Angloher G, Bauer P, Bento A, Bucci C, Canonica L, Defay X, Erb A, Feilitzsch FV, Iachellini NF, Gorla P, Gutlein A, Hauff D, Jochum J, Kiefer M, Kluck H, Kraus H, Lanfranchi JC, Langenkamper A, Loebell J, Mancuso M, Mondragon E, Munster A, Oberauer L, Pagliarone C, Petricca F, Potzel W, Probst F, Puig R, Reindl F, Rothe J, Schaffner K, Schieck J, Schonert S, Seidel W, Stahlberg M, Stodolsky L, Strandhagen C, Strauss R, Tanzke A, Thi HHT, Turkoglu C, Uffinger M, Ulrich A, Usherov I, Wawoczny S, Willers M, Wustrich M, Zoller A, Angloher, G, Bauer, P, Bento, A, Bucci, C, Canonica, L, Defay, X, Erb, A, Feilitzsch, F, Iachellini, N, Gorla, P, Gutlein, A, Hauff, D, Jochum, J, Kiefer, M, Kluck, H, Kraus, H, Lanfranchi, J, Langenkamper, A, Loebell, J, Mancuso, M, Mondragon, E, Munster, A, Oberauer, L, Pagliarone, C, Petricca, F, Potzel, W, Probst, F, Puig, R, Reindl, F, Rothe, J, Schaffner, K, Schieck, J, Schonert, S, Seidel, W, Stahlberg, M, Stodolsky, L, Strandhagen, C, Strauss, R, Tanzke, A, Thi, H, Turkoglu, C, Uffinger, M, Ulrich, A, Usherov, I, Wawoczny, S, Willers, M, Wustrich, M, Zoller, A, Angloher G, Bauer P, Bento A, Bucci C, Canonica L, Defay X, Erb A, Feilitzsch FV, Iachellini NF, Gorla P, Gutlein A, Hauff D, Jochum J, Kiefer M, Kluck H, Kraus H, Lanfranchi JC, Langenkamper A, Loebell J, Mancuso M, Mondragon E, Munster A, Oberauer L, Pagliarone C, Petricca F, Potzel W, Probst F, Puig R, Reindl F, Rothe J, Schaffner K, Schieck J, Schonert S, Seidel W, Stahlberg M, Stodolsky L, Strandhagen C, Strauss R, Tanzke A, Thi HHT, Turkoglu C, Uffinger M, Ulrich A, Usherov I, Wawoczny S, Willers M, Wustrich M, and Zoller A

Published
2017

6. Dark-photon search using data from CRESST-II Phase 2

Author

Angloher, G, Bauer, P, Bento, A, Bucci, C, Canonica, L, Defay, X, Erb, A, von Feilitzsch, F, Iachellini, N, Gorla, P, Gutlein, A, Hauff, D, Jochum, J, Kiefer, M, Kluck, H, Kraus, H, Lanfranchi, J, Loebell, J, Mancuso, M, Munster, A, Pagliarone, C, Petricca, F, Potzel, W, Probst, F, Puig, R, Reindl, F, Schaffner, K, Schieck, J, Schonert, S, Seidel, W, Stodolsky, L, Strandhagen, C, Strauss, R, Tanzke, A, Thi, H, Turkoglu, C, Uffinger, M, Ulrich, A, Usherov, I, Wawoczny, S, Willers, M, Wustrich, M, Zoller, A, Angloher G, Bauer P, Bento A, Bucci C, Canonica L, Defay X, Erb A, von Feilitzsch F, Iachellini NF, Gorla P, Gutlein A, Hauff D, Jochum J, Kiefer M, Kluck H, Kraus H, Lanfranchi JC, Loebell J, Mancuso M, Munster A, Pagliarone C, Petricca F, Potzel W, Probst F, Puig R, Reindl F, Schaffner K, Schieck J, Schonert S, Seidel W, Stodolsky L, Strandhagen C, Strauss R, Tanzke A, Thi HHT, Turkoglu C, Uffinger M, Ulrich A, Usherov I, Wawoczny S, Willers M, Wustrich M, Zoller A, Angloher, G, Bauer, P, Bento, A, Bucci, C, Canonica, L, Defay, X, Erb, A, von Feilitzsch, F, Iachellini, N, Gorla, P, Gutlein, A, Hauff, D, Jochum, J, Kiefer, M, Kluck, H, Kraus, H, Lanfranchi, J, Loebell, J, Mancuso, M, Munster, A, Pagliarone, C, Petricca, F, Potzel, W, Probst, F, Puig, R, Reindl, F, Schaffner, K, Schieck, J, Schonert, S, Seidel, W, Stodolsky, L, Strandhagen, C, Strauss, R, Tanzke, A, Thi, H, Turkoglu, C, Uffinger, M, Ulrich, A, Usherov, I, Wawoczny, S, Willers, M, Wustrich, M, Zoller, A, Angloher G, Bauer P, Bento A, Bucci C, Canonica L, Defay X, Erb A, von Feilitzsch F, Iachellini NF, Gorla P, Gutlein A, Hauff D, Jochum J, Kiefer M, Kluck H, Kraus H, Lanfranchi JC, Loebell J, Mancuso M, Munster A, Pagliarone C, Petricca F, Potzel W, Probst F, Puig R, Reindl F, Schaffner K, Schieck J, Schonert S, Seidel W, Stodolsky L, Strandhagen C, Strauss R, Tanzke A, Thi HHT, Turkoglu C, Uffinger M, Ulrich A, Usherov I, Wawoczny S, Willers M, Wustrich M, and Zoller A

Abstract

Identifying the nature and origin of dark matter is one of the major challenges for modern astro and particle physics. Direct dark-matter searches aim at an observation of dark-matter particles interacting within detectors. The focus of several such searches is on interactions with nuclei as provided e.g. by weakly interacting massive particles. However, there is a variety of dark-matter candidates favoring interactions with electrons rather than with nuclei. One example are dark photons, i.e., long-lived vector particles with a kinetic mixing to standard-model photons. In this work we present constraints on this kinetic mixing based on data from CRESST-II Phase 2 corresponding to an exposure before cuts of 52 kg-days. These constraints improve the existing ones for dark-photon masses between 0.3 and 0.7 keV/c2.

Published
2017

7. Exploring Low-Mass Dark Matter with CRESST

Author

Strauss, R, Angloher, G, Bento, A, Bucci, C, Canonica, L, Defay, X, Erb, A, von Feilitzsch, F, Iachellini, N, Gorla, P, Gutlein, A, Hauff, D, Jochum, J, Kiefer, M, Kluck, H, Kraus, H, Lanfranchi, J, Loebell, J, Munster, A, Pagliarone, C, Petricca, F, Potzel, W, Probst, F, Reindl, F, Schaffner, K, Schieck, J, Schonert, S, Seidel, W, Stodolsky, L, Strandhagen, C, Tanzke, A, Thi, H, Turkoglu, C, Uffinger, M, Ulrich, A, Usherov, I, Wawoczny, S, Willers, M, Wustrich, M, Zoller, A, Strauss R, Angloher G, Bento A, Bucci C, Canonica L, Defay X, Erb A, von Feilitzsch F, Iachellini NF, Gorla P, Gutlein A, Hauff D, Jochum J, Kiefer M, Kluck H, Kraus H, Lanfranchi JC, Loebell J, Munster A, Pagliarone C, Petricca F, Potzel W, Probst F, Reindl F, Schaffner K, Schieck J, Schonert S, Seidel W, Stodolsky L, Strandhagen C, Tanzke A, Thi HHT, Turkoglu C, Uffinger M, Ulrich A, Usherov I, Wawoczny S, Willers M, Wustrich M, Zoller A, Strauss, R, Angloher, G, Bento, A, Bucci, C, Canonica, L, Defay, X, Erb, A, von Feilitzsch, F, Iachellini, N, Gorla, P, Gutlein, A, Hauff, D, Jochum, J, Kiefer, M, Kluck, H, Kraus, H, Lanfranchi, J, Loebell, J, Munster, A, Pagliarone, C, Petricca, F, Potzel, W, Probst, F, Reindl, F, Schaffner, K, Schieck, J, Schonert, S, Seidel, W, Stodolsky, L, Strandhagen, C, Tanzke, A, Thi, H, Turkoglu, C, Uffinger, M, Ulrich, A, Usherov, I, Wawoczny, S, Willers, M, Wustrich, M, Zoller, A, Strauss R, Angloher G, Bento A, Bucci C, Canonica L, Defay X, Erb A, von Feilitzsch F, Iachellini NF, Gorla P, Gutlein A, Hauff D, Jochum J, Kiefer M, Kluck H, Kraus H, Lanfranchi JC, Loebell J, Munster A, Pagliarone C, Petricca F, Potzel W, Probst F, Reindl F, Schaffner K, Schieck J, Schonert S, Seidel W, Stodolsky L, Strandhagen C, Tanzke A, Thi HHT, Turkoglu C, Uffinger M, Ulrich A, Usherov I, Wawoczny S, Willers M, Wustrich M, and Zoller A

Abstract

The CRESST-II (Cryogenic Rare Event Search with Superconducting Thermometers) experiment, whose second phase has been successfully finished in summer 2015, aims at the direct detection of dark matter particles. The intrinsic radiopurity of CaWO4 crystals, the capability to reject recoil events from alpha-surface contamination, and the energy threshold were significantly improved compared to previous runs of the experiment. A moderate exposure of 29 kg-days acquired by one ∼ 250 g CaWO4 detector provides competitive limits on the spin-independent dark matter particle-nucleon cross section and probes a new region of parameter space for dark matter particle masses below 3 GeV/c2. The potential for low-mass dark matter particle search can be further exploited by a new detector design planned for CRESST-III. We describe the experimental strategy for the near future and give projections for the sensitivity.

Published
2016

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

Author

Angloher, G, Bento, A, Bucci, C, Canonica, L, Defay, X, Erb, A, von Feilitzsch, F, Iachellini, N, Gorla, P, Gutlein, A, Hauff, D, Jochum, J, Kiefer, M, Kluck, H, Kraus, H, Lanfranchi, J, Loebell, J, Munster, A, Pagliarone, C, Petricca, F, Potzel, W, Probst, F, Reindl, F, Schaffner, K, Schieck, J, Schonert, S, Seidel, W, Stodolsky, L, Strandhagen, C, Strauss, R, Tanzke, A, Thi, H, Turkoglu, C, Uffinger, M, Ulrich, A, Usherov, I, Wawoczny, S, Willers, M, Wustrich, M, Zoller, A, Angloher G, Bento A, Bucci C, Canonica L, Defay X, Erb A, von Feilitzsch F, Iachellini NF, Gorla P, Gutlein A, Hauff D, Jochum J, Kiefer M, Kluck H, Kraus H, Lanfranchi JC, Loebell J, Munster A, Pagliarone C, Petricca F, Potzel W, Probst F, Reindl F, Schaffner K, Schieck J, Schonert S, Seidel W, Stodolsky L, Strandhagen C, Strauss R, Tanzke A, Thi HHT, Turkoglu C, Uffinger M, Ulrich A, Usherov I, Wawoczny S, Willers M, Wustrich M, Zoller A, Angloher, G, Bento, A, Bucci, C, Canonica, L, Defay, X, Erb, A, von Feilitzsch, F, Iachellini, N, Gorla, P, Gutlein, A, Hauff, D, Jochum, J, Kiefer, M, Kluck, H, Kraus, H, Lanfranchi, J, Loebell, J, Munster, A, Pagliarone, C, Petricca, F, Potzel, W, Probst, F, Reindl, F, Schaffner, K, Schieck, J, Schonert, S, Seidel, W, Stodolsky, L, Strandhagen, C, Strauss, R, Tanzke, A, Thi, H, Turkoglu, C, Uffinger, M, Ulrich, A, Usherov, I, Wawoczny, S, Willers, M, Wustrich, M, Zoller, A, Angloher G, Bento A, Bucci C, Canonica L, Defay X, Erb A, von Feilitzsch F, Iachellini NF, Gorla P, Gutlein A, Hauff D, Jochum J, Kiefer M, Kluck H, Kraus H, Lanfranchi JC, Loebell J, Munster A, Pagliarone C, Petricca F, Potzel W, Probst F, Reindl F, Schaffner K, Schieck J, Schonert S, Seidel W, Stodolsky L, Strandhagen C, Strauss R, Tanzke A, Thi HHT, Turkoglu C, Uffinger M, Ulrich A, Usherov I, Wawoczny S, Willers M, Wustrich M, and Zoller A

Abstract

The CRESST-II experiment uses cryogenic detectors to search for nuclear recoil events induced by the elastic scattering of dark matter particles in CaWO4 crystals. Given the low energy threshold of our detectors in combination with light target nuclei, low mass dark matter particles can be probed with high sensitivity. In this letter we present the results from data of a single detector module corresponding to 52 kg live days. A blind analysis is carried out. With an energy threshold for nuclear recoils of 307 eV we substantially enhance the sensitivity for light dark matter. Thereby, we extend the reach of direct dark matter experiments to the sub- GeV/c2 region and demonstrate that the energy threshold is the key parameter in the search for low mass dark matter particles.

Published
2016

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