LEGEND-1000 Preconceptual Design Report

LEGEND Collaboration; Abgrall, N.; Abt, I.; Agostini, M.; Alexander, A.; Andreoiu, C.; Araujo, G. R.; Avignone, F. T.; Bae, W.; Bakalyarov, A.; Balata, M.; Bantel, M.; Barabanov, I.; Barabash, A. S.; Barbeau, P. S.; Barton, C. J.; Barton, P. J.; Baudis, L.; Bauer, C.; Bernieri, E.; Bezrukov, L.; Bhimani, K. H.; Biancacci, V.; Blalock, E.; Bolozdynya, A.; Borden, S.; Bos, B.; Bossio, E.; Boston, A.; Bothe, V.; Bouabid, R.; Boyd, S.; Brugnera, R.; Burlac, N.; Busch, M.; Caldwell, A.; Caldwell, T. S.; Carney, R.; Cattadori, C.; Chan, Y. -D.; Chernogorov, A.; Christofferson, C. D.; Chu, P. -H.; Clark, M.; Cohen, T.; Combs, D.; Comellato, T.; Cooper, R. J.; Costa, I. A.; D'Andrea, V.; Detwiler, J. A.; Di Giacinto, A.; Di Marco, N.; Dobson, J.; Drobizhev, A.; Durand, M. R.; Edzards, F.; Efremenko, Yu.; Elliott, S. R.; Engelhardt, A.; Fajt, L.; Faud, N.; Febbraro, M. T.; Ferella, F.; Fields, D. E.; Fischer, F.; Fomina, M.; Fox, H.; Franchi, J.; Gala, R.; Galindo-Uribarri, A.; Gangapshev, A.; Garfagnini, A.; Geraci, A.; Gilbert, C.; Gold, M.; Gooch, C.; Gradwohl, K. P.; Green, M. P.; Grinyer, G. F.; Grobov, A.; Gruszko, J.; Guinn, I.; Guiseppe, V. E.; Gurentsov, V.; Gurov, Y.; Gusev, K.; Hacket, B.; Hagemann, F.; Hakenmüeller, J.; Haranczyk, M.; Hauertmann, L.; Haufe, C. R.; Hayward, C.; Heffron, B.; Henkes, F.; Henning, R.; Aguilar, D. Hervas; Hinton, J.; Hodak, R.; Hoffmann, H.; Hofmann, W.; Hostiuc, A.; Huang, J.; Hult, M.; Mirza, M. Ibrahim; Jochum, J.; Jones, R.; Judson, D.; Junker, M.; Kaizer, J.; Kazalov, V.; Kermaïdic, Y.; Khushbakht, H.; Kidd, M.; Kihm, T.; Kilgus, K.; Kim, I.; Klimenko, A.; Knöpfle, K. T.; Kochetov, O.; Konovalov, S. I.; Kontul, I.; Kool, K.; Kormos, L. L.; Kornoukhov, V. N.; Korosec, M.; Krause, P.; Kuzminov, V. V.; López-Castaño, J. M.; Lang, K.; Laubenstein, M.; León, E.; Lehnert, B.; Leonhardt, A.; Li, A.; Lindner, M.; Lippi, I.; Liu, X.; Liu, J.; Loomba, D.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lusardi, N.; Müller, Y.; Macko, M.; Macolino, C.; Majorovits, B.; Mamedov, F.; Maneschg, W.; Manzanillas, L.; Marshall, G.; Martin, R. D.; Martin, E. L.; Massarczyk, R.; Mei, D.; Meijer, S. J.; Mertens, S.; Misiaszek, M.; Mondragon, E.; Morella, M.; Morgan, B.; Mroz, T.; Muenstermann, D.; Nave, C. J.; Nemchenok, I.; Neuberger, M.; Oli, T. K.; Gann, G. Orebi; Othman, G.; Palušova, V.; Panth, R.; Papp, L.; Paudel, L. S.; Pelczar, K.; Perez, J. Perez; Pertoldi, L.; Pettus, W.; Piseri, P.; Poon, A. W. P.; Povinec, P.; Pullia, A.; Radford, D. C.; Ramachers, Y. A.; Ransom, C.; Rauscher, L.; Redchuk, M.; Reine, A. L.; Riboldi, S.; Rielage, K.; Rozov, S.; Rukhadze, E.; Rumyantseva, N.; Runge, J.; Ruof, N. W.; Saakyan, R.; Sailer, S.; Salamanna, G.; Salamida, F.; Salvat, D. J.; Sandukovsky, V.; Schönert, S.; Schültz, A.; Schütt, M.; Schaper, D. C.; Schreiner, J.; Schulz, O.; Schuster, M.; Schwarz, M.; Schwingenheuer, B.; Selivanenko, O.; Shaflee, M.; Shevchik, E.; Shirchenko, M.; Shitov, Y.; Simgen, H.; Simkovic, F.; Skorokhvatov, M.; Slavickova, M.; Smolek, K.; Smolnikov, A.; Solomon, J. A.; Song, G.; Starosta, K.; Stekl, I.; Stommel, M.; Stukov, D.; Sumathi, R. R.; Sweigart, D. A.; Szczepaniec, K.; Taffarello, L.; Tagnani, D.; Tayloe, R.; Tedeschi, D.; Turqueti, M.; Varner, R. L.; Vasilyev, S.; Veresnikova, A.; Vetter, K.; Vignoli, C.; Vogl, C.; von Sturm, K.; Waters, D.; Waters, J. C.; Wei, W.; Wiesinger, C.; Wilkerson, J. F.; Willers, M.; Wiseman, C.; Wojcik, M.; Wu, V. H. -S.; Xu, W.; Yakushev, E.; Ye, T.; Yu, C. -H.; Yumatov, V.; Zaretski, N.; Zeman, J.; Zhitnikov, I.; Zinatulina, D.; Zschocke, A. -K.; Zsigmond, A. J.; Zuber, K.; Zuzel, G.

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LEGEND-1000 Preconceptual Design Report

MPS-Authors

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Hinton, J.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Hofmann, W.
Prof. Werner Hofmann, Emeriti, MPI for Nuclear Physics, Max Planck Society;

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

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Citation

LEGEND Collaboration, Abgrall, N., Abt, I., Agostini, M., Alexander, A., Andreoiu, C., et al. (2021). LEGEND-1000 Preconceptual Design Report. arXiv, 2107.11462.

Cite as: https://hdl.handle.net/21.11116/0000-0009-1884-7

Abstract

We propose the construction of LEGEND-1000, the ton-scale Large Enriched
Germanium Experiment for Neutrinoless $\beta \beta$ Decay. This international
experiment is designed to answer one of the highest priority questions in
fundamental physics. It consists of 1000 kg of Ge detectors enriched to more
than 90% in the $^{76}$Ge isotope operated in a liquid argon active shield at a
deep underground laboratory. By combining the lowest background levels with the
best energy resolution in the field, LEGEND-1000 will perform a
quasi-background-free search and can make an unambiguous discovery of
neutrinoless double-beta decay with just a handful of counts at the decay $Q$
value. The experiment is designed to probe this decay with a 99.7%-CL discovery
sensitivity in the $^{76}$Ge half-life of $1.3\times10^{28}$ years,
corresponding to an effective Majorana mass upper limit in the range of 9-21
meV, to cover the inverted-ordering neutrino mass scale with 10 yr of live
time.