Sensitivity of the DARWIN observatory to the neutrinoless double beta decay of 
Xe-136

Agostini, F.; Maouloud, S. E. M. Ahmed; Althueser, L.; Amaro, F.; Antunovic, B.; Aprile, E.; Baudis, L.; Baur, D.; Biondi, Y.; Bismark, A.; Breur, P. A.; Brown, A.; Bruno, G.; Budnik, R.; Capelli, C.; Cardoso, J.; Cichon, D.; Clark, M.; Colijn, A. P.; Cuenca-Garcia, J. J.; Cussonneau, J. P.; Decowski, M. P.; Depoian, A.; Dierle, J.; Di Gangi, P.; Di Giovanni, A.; Diglio, S.; dos Santos, J. M. F.; Drexlin, G.; Eitel, K.; Engel, R.; Ferella, A. D.; Fischer, H.; Galloway, M.; Gao, F.; Girard, F.; Glueck, F.; Grandi, L.; Groessle, R.; Gumbsheimer, R.; Hansmann-Menzemer, S.; Joerg, F.; Khundzakishvili, G.; Kopec, A.; Kuger, F.; Krauss, L. M.; Landsman, H.; Lang, R. F.; Lindemann, S.; Lindner, M.; Lopes, J. A. M.; Villalpando, A. Loya; Macolino, C.; Manfredini, A.; Marrodán Undagoitia, Teresa; Masbou, J.; Masson, E.; Meinhardt, P.; Milutinovic, S.; Molinario, A.; Monteiro, C. M. B.; Murra, M.; Oberlack, U. G.; Pandurovic, M.; Peres, R.; Pienaar, J.; Pierre, M.; Pizzella, V.; Qin, J.; Garcia, D. Ramirez; Reichard, S.; Rupp, Natascha; Sanchez-Lucas, P.; Sartorelli, G.; Schulte, D.; Schumann, M.; Lavina, L. Scotto; Selvi, M.; Silva, M.; Simgen, H.; Steidl, M.; Terliuk, A.; Therreau, C.; Thers, D.; Thieme, K.; Trotta, R.; Tunnell, C. D.; Valerius, K.; Volta, G.; Vorkapic, D.; Weinheimer, C.; Wittweg, C.; Wolf, J.; Zopounidis, J. P.; Zuber, K.

doi:10.1140/epjc/s10052-020-8196-z

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Sensitivity of the DARWIN observatory to the neutrinoless double beta decay of Xe-136

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Lindner, M.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Marrodán Undagoitia, Teresa
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Pizzella, V.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Rupp, Natascha
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Simgen, H.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Citation

Agostini, F., Maouloud, S. E. M. A., Althueser, L., Amaro, F., Antunovic, B., Aprile, E., et al. (2020). Sensitivity of the DARWIN observatory to the neutrinoless double beta decay of Xe-136. European Physical Journal C, 80(9): 808. doi:10.1140/epjc/s10052-020-8196-z.

Cite as: https://hdl.handle.net/21.11116/0000-0008-2498-4

Abstract

The DARWIN observatory is a proposed nextgeneration experiment to search for particle dark matter and for the neutrinoless double beta decay of Xe-136. Out of its 50 t total natural xenon inventory, 40 t will be the active target of a time projection chamber which thus contains about 3.6 t of Xe-136. Here, we show that its projected half-life sensitivity is 2.4 x 10(27) years, using a fiducial volume of 5 t of natural xenon and 10 years of operation with a background rate of less than 0.2 events/(t center dot year) in the energy region of interest. This sensitivity is based on a detailed Monte Carlo simulation study of the background and event topologies in the large, homogeneous target. DARWIN will be comparable in its science reach to dedicated double beta decay experiments using xenon enriched in Xe-136.