Sensitivity of the DARWIN observatory to the neutrinoless double beta decay of $$^{136}$$Xe
- Agostini, F.
- Maouloud, S.
- Althueser, L.
- Amaro, F.
- Antunovic, B.
- Aprile, E.
- Baudis, L.
- Baur, D.
- Biondi, Y.
- Bismark, A.
- Breur, P.
- Brown, A.
- Bruno, G.
- Budnik, R.
- Capelli, C.
- Cardoso, J.
- Cichon, D.
- Clark, M.
- Colijn, A.
- Cuenca-García, J.
- Cussonneau, J.
- Decowski, M.
- Depoian, A.
- Dierle, J.
- Gangi, P. Di
- Giovanni, A. Di
- Diglio, S.
- Santos, J.
- Drexlin, G.
- Eitel, K.
- Engel, R.
- Ferella, A.
- Fischer, H.
- Galloway, M.
- Gao, F.
- Girard, F.
- Glück, F.
- Grandi, L.
- Grössle, R.
- Gumbsheimer, R.
- Hansmann-Menzemer, S.
- Jörg, F.
- Khundzakishvili, G.
- Kopec, A.
- Kuger, F.
- Krauss, L.
- Landsman, H.
- Lang, R.
- Lindemann, S.
- Lindner, M.
- Lopes, J.
- Villalpando, A. Loya
- Macolino, C.
- Manfredini, A.
- Undagoitia, T. Marrodán
- Masbou, J.
- Masson, E.
- Meinhardt, P.
- Milutinovic, S.
- Molinario, A.
- Monteiro, C.
- Murra, M.
- Oberlack, U.
- Pandurovic, M.
- Peres, R.
- Pienaar, J.
- Pierre, M.
- Pizzella, V.
- Qin, J.
- García, D. Ramírez
- Reichard, S.
- Rupp, N.
- 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, Dominique
- Thieme, K.
- Trotta, R.
- Tunnell, C.
- Valerius, K.
- Volta, G.
- Vorkapic, D.
- Weinheimer, C.
- Wittweg, C.
- Wolf, J.
- Zopounidis, J.
- Zuber, K.
DOIAbstract
International audienceAbstract The DARWIN observatory is a proposed next-generation experiment to search for particle dark matter and for the neutrinoless double beta decay of $$^{136}$$ 136 Xe. 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 $$^{136}$$ 136 Xe. Here, we show that its projected half-life sensitivity is $$2.4\times {10}^{27}\,{\hbox {year}}$$ 2.4 × 10 27 year , using a fiducial volume of 5 t of natural xenon and 10 year of operation with a background rate of less than 0.2 events/(t $$\cdot $$ · year) in the energy region of interest. This sensitivity is based on a detailed Monte Carlo simulation study of the background and event topo...
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