Sensitivity of the DARWIN observatory to the neutrinoless double beta decay of 136 Xe
- Agostini F.
- Maouloud S. E. M. A.
- 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.
- Gangi P. D.
- Giovanni A. D.
- Diglio S.
- Santos J. M. F.
- Drexlin G.
- Eitel K.
- Engel R.
- Ferella A. D.
- Fischer H.
- Galloway M.
- Gao F.
- Girard F.
- Gluck F.
- Grandi L.
- Grossle R.
- Gumbsheimer R.
- Hansmann-Menzemer S.
- Jorg 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. L.
- Macolino C.
- Manfredini A.
- Undagoitia T. M.
- 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. R.
- Reichard S.
- Rupp N.
- Sanchez-Lucas P.
- Sartorelli G.
- Schulte D.
- Schumann M.
- Lavina L. S.
- 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.
DOIAbstract
The DARWIN observatory is a proposed next-generation experiment to search for particle dark matter and for the neutrinoless double beta decay of 136Xe. 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 136Xe. Here, we show that its projected half-life sensitivity is 2.4×1027year, 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 · 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 sc...
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