Background suppression in the COSINUS experiment: Active muon veto and radiopure materials selection

Stukel, Matthew; Angloher, G.; Raghunath Bharadwaj, Mukund; Dafinei, I.; Di Marco, N.; Einfalt, Leonie; Ferroni, F.; Fichtinger, S.; Filipponi, A.; Frank, T.; Friedl, Markus; Fuss, A.; Ge, Z.; Heikinheimo, Matti; Huitu, Katri; Kellermann, M.; Maji, R.; Mancuso, M.; Pagnanini, L.; Petricca, Federica; Pirro, S.; Pröbst, F.; Profeta, G.; Puiu, A.; Reindl, Florian; Schäffner, K.; Schieck, J.; Schmiedmayer, D.; Schwertner, C.; Stahlberg, Martin; Stendahl, A.; Wagner, F.; Yue, S.; Zema, Vanessa; Zhu, Y.

doi:10.21468/SciPostPhysProc.12.032

SciPost Physics Proceedings

Background suppression in the COSINUS experiment: Active muon veto and radiopure materials selection

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

SciPost Phys. Proc. 12, 032 (2023) · published 4 July 2023

doi: 10.21468/SciPostPhysProc.12.032
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14th International Conference on Identification of Dark Matter

Abstract

For over twenty-five years the DAMA/LIBRA experiment has reported an annual modulation signal that is consistent with a dark matter explanation. This signal is, currently, in tension with the null results observed by other searches that utilize different target detectors. The COSINUS experiment will perform a model-independent cross-check of the DAMA/LIBRA result by using the same target material, NaI crystals, operated as scintillating calorimeters. By measuring both temperature and light the NaI crystals in COSINUS will be able to distinguish between electron and nuclear recoils on an event-by-event basis. However, background events induced by cosmic-rays, environmental radioactivity or the intrinsic contamination of the materials used in the crystal, shielding and infrastructure can pose an issue to any analysis and must be fully understood. We report on the status of the development of the simulation for an active water Cherenkov muon veto, as well as the results of the beginning radiogenic material screening.

TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysProc.12.032
TI  - Background suppression in the COSINUS experiment: Active muon veto and radiopure materials selection
PY  - 2023/07/04
UR  - https://scipost.org/SciPostPhysProc.12.032
JF  - SciPost Physics Proceedings
JA  - SciPost Phys. Proc.
VL  - 
IS  - 12
SP  - 032
A1  - Stukel, Matthew
AU  - Angloher, G.
AU  - Raghunath Bharadwaj, Mukund
AU  - Dafinei, I.
AU  - Di Marco, N.
AU  - Einfalt, Leonie
AU  - Ferroni, F.
AU  - Fichtinger, S.
AU  - Filipponi, A.
AU  - Frank, T.
AU  - Friedl, Markus
AU  - Fuss, A.
AU  - Ge, Z.
AU  - Heikinheimo, Matti
AU  - Huitu, Katri
AU  - Kellermann, M.
AU  - Maji, R.
AU  - Mancuso, M.
AU  - Pagnanini, L.
AU  - Petricca, Federica
AU  - Pirro, S.
AU  - Pröbst, F.
AU  - Profeta, G.
AU  - Puiu, A.
AU  - Reindl, Florian
AU  - Schäffner, K.
AU  - Schieck, J.
AU  - Schmiedmayer, D.
AU  - Schwertner, C.
AU  - Stahlberg, Martin
AU  - Stendahl, A.
AU  - Wagner, F.
AU  - Yue, S.
AU  - Zema, Vanessa
AU  - Zhu, Y.
AB  - For over twenty-five years the DAMA/LIBRA experiment has reported an annual modulation signal that is consistent with a dark matter explanation. This signal is, currently, in tension with the null results observed by other searches that utilize different target detectors. The COSINUS experiment will perform a model-independent cross-check of the DAMA/LIBRA result by using the same target material, NaI crystals, operated as scintillating calorimeters. By measuring both temperature and light the NaI crystals in COSINUS will be able to distinguish between electron and nuclear recoils on an event-by-event basis. However, background events induced by cosmic-rays, environmental radioactivity or the intrinsic contamination of the materials used in the crystal, shielding and infrastructure can pose an issue to any analysis and must be fully understood. We report on the status of the development of the simulation for an active water Cherenkov muon veto, as well as the results of the beginning radiogenic material screening.
ER  -

@Article{10.21468/SciPostPhysProc.12.032,
	title={{Background suppression in the COSINUS experiment: Active muon veto and radiopure materials selection}},
	author={M. Stukel and G. Angloher and Mukund Raghunath Bharadwaj and I. Dafinei  and N. Di Marco and L. Einfalt and F. Ferroni and S. Fichtinger and A. Filipponi and T. Frank and M. Friedl and A. Fuss  and Z. Ge and M. Heikinheimo and K. Huitu and M. Kellermann and R. Maji and M. Mancuso and L. Pagnanini and F. Petricca and S. Pirro and F. Pröbst and G. Profeta and A. Puiu and F. Reindl and K. Schäffner and  J. Schieck and D. Schmiedmayer and C. Schwertner and M. Stahlberg and A. Stendahl and F. Wagner and S. Yue and V. Zema and Y. Zhu},
	journal={SciPost Phys. Proc.},
	pages={032},
	year={2023},
	publisher={SciPost},
	doi={10.21468/SciPostPhysProc.12.032},
	url={https://scipost.org/10.21468/SciPostPhysProc.12.032},
}

Authors / Affiliations: mappings to Contributors and Organizations

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¹ ² Matthew Stukel,
³ G. Angloher,
³ Mukund Raghunath Bharadwaj,
² ⁴ I. Dafinei,
¹ ² N. Di Marco,
⁵ ⁶ Leonie Einfalt,
² ⁴ F. Ferroni,
⁶ S. Fichtinger,
¹ ⁷ A. Filipponi,
³ T. Frank,
⁶ Markus Friedl,
⁵ ⁶ A. Fuss,
⁸ Z. Ge,
⁹ Matti Heikinheimo,
⁹ Katri Huitu,
³ M. Kellermann,
⁵ ⁶ R. Maji,
³ M. Mancuso,
¹ ² L. Pagnanini,
³ Federica Petricca,
¹ S. Pirro,
³ F. Pröbst,
¹ ⁷ G. Profeta,
¹ ² A. Puiu,
⁵ ⁶ Florian Reindl,
³ K. Schäffner,
⁵ ⁶ J. Schieck,
⁵ ⁶ D. Schmiedmayer,
⁵ ⁶ C. Schwertner,
³ Martin Stahlberg,
⁹ A. Stendahl,
⁶ F. Wagner,
⁸ S. Yue,
³ Vanessa Zema,
⁸ Y. Zhu