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The LEGEND experiment is looking for the extremely rare neutrinoless double beta ($0\nu\beta\beta$) decay of $^{76}$Ge using isotopically-enriched high-purity germanium (HPGe) detectors. The detection of this process would imply that the…

High Energy Physics - Experiment · Physics 2025-08-27 Carmen Romo-Luque

The MAJORANA DEMONSTRATOR neutrinoless double beta-decay experiment is currently under construction at the Sanford Underground Research Facility in South Dakota, USA. An overview and status of the experiment are given.

Neutrinoless double-beta decay($0\nu\beta\beta$) decay is a hypothetical process that violates lepton number, and whose observation would unambiguously indicate that neutrinos are Majorana fermions. In the standard inverted-ordering…

Nuclear Experiment · Physics 2019-12-10 I. S. Guinn , J. M. López-Castaño

The LEGEND Experiment searches for the neutrinoless double beta (0$\nu\beta\beta$) decay of $^{76}$Ge employing active high purity germanium detectors enriched in $^{76}$Ge beyond 86%. LEGEND's experimental program is articulated in two…

High Energy Physics - Experiment · Physics 2026-03-16 Giovanna Saleh

The {\sc Majorana} Project, a neutrinoless double-beta decay experiment is described with an emphasis on the choice of Ge-detector configuration.

Nuclear Experiment · Physics 2012-08-27 The MAJORANA collaboration

A brief review of the history and neutrino physics of double beta decay is given. A description of the MAJORANA DEMONSTRATOR research and development program including background reduction techniques is presented in some detail. The…

The Majorana Demonstrator is an ultra-low background physics experiment searching for the neutrinoless double beta decay of $^{76}$Ge. The Majorana Parts Tracking Database is used to record the history of components used in the construction…

The Majorana Collaboration is constructing a system containing 40 kg of HPGe detectors to demonstrate the feasibility and potential of a future tonne-scale experiment capable of probing the neutrino mass scale in the inverted-hierarchy…

Neutrinoless double beta decay ($0\nu\beta\beta$) is a rare process which could take place if neutrinos are Majorana fermions: the observation of this decay would provide unambiguous evidence for the existence of new Physics beyond the…

Nuclear Experiment · Physics 2026-01-14 Giovanna Saleh

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…

Instrumentation and Detectors · Physics 2024-09-10 LEGEND Collaboration , N. Abgrall , I. Abt , M. Agostini , A. Alexander , C. Andreoiu , G. R. Araujo , F. T. Avignone , W. Bae , A. Bakalyarov , M. Balata , M. Bantel , I. Barabanov , A. S. Barabash , P. S. Barbeau , C. J. Barton , P. J. Barton , L. Baudis , C. Bauer , E. Bernieri , L. Bezrukov , K. H. Bhimani , V. Biancacci , E. Blalock , A. Bolozdynya , S. Borden , B. Bos , E. Bossio , A. Boston , V. Bothe , R. Bouabid , S. Boyd , R. Brugnera , N. Burlac , M. Busch , A. Caldwell , T. S. Caldwell , R. Carney , C. Cattadori , Y. -D. Chan , A. Chernogorov , C. D. Christofferson , P. -H. Chu , M. Clark , T. Cohen , D. Combs , T. Comellato , R. J. Cooper , I. A. Costa , V. D'Andrea , J. A. Detwiler , A. Di Giacinto , N. Di Marco , J. Dobson , A. Drobizhev , M. R. Durand , F. Edzards , Yu. Efremenko , S. R. Elliott , A. Engelhardt , L. Fajt , N. Faud , M. T. Febbraro , F. Ferella , D. E. Fields , F. Fischer , M. Fomina , H. Fox , J. Franchi , R. Gala , A. Galindo-Uribarri , A. Gangapshev , A. Garfagnini , A. Geraci , C. Gilbert , M. Gold , C. Gooch , K. P. Gradwohl , M. P. Green , G. F. Grinyer , A. Grobov , J. Gruszko , I. Guinn , V. E. Guiseppe , V. Gurentsov , Y. Gurov , K. Gusev , B. Hacket , F. Hagemann , J. Hakenmüeller , M. Haranczyk , L. Hauertmann , C. R. Haufe , C. Hayward , B. Heffron , F. Henkes , R. Henning , D. Hervas Aguilar , J. Hinton , R. Hodak , H. Hoffmann , W. Hofmann , A. Hostiuc , J. Huang , M. Hult , M. Ibrahim Mirza , J. Jochum , R. Jones , D. Judson , M. Junker , J. Kaizer , V. Kazalov , Y. Kermaïdic , H. Khushbakht , M. Kidd , T. Kihm , K. Kilgus , I. Kim , A. Klimenko , K. T. Knöpfle , O. Kochetov , S. I. Konovalov , I. Kontul , K. Kool , L. L. Kormos , V. N. Kornoukhov , M. Korosec , P. Krause , V. V. Kuzminov , J. M. López-Castaño , K. Lang , M. Laubenstein , E. León , B. Lehnert , A. Leonhardt , A. Li , M. Lindner , I. Lippi , X. Liu , J. Liu , D. Loomba , A. Lubashevskiy , B. Lubsandorzhiev , N. Lusardi , Y. Müller , M. Macko , C. Macolino , B. Majorovits , F. Mamedov , W. Maneschg , L. Manzanillas , G. Marshall , R. D. Martin , E. L. Martin , R. Massarczyk , D. Mei , S. J. Meijer , S. Mertens , M. Misiaszek , E. Mondragon , M. Morella , B. Morgan , T. Mroz , D. Muenstermann , C. J. Nave , I. Nemchenok , M. Neuberger , T. K. Oli , G. Orebi Gann , G. Othman , V. Palušova , R. Panth , L. Papp , L. S. Paudel , K. Pelczar , J. Perez Perez , L. Pertoldi , W. Pettus , P. Piseri , A. W. P. Poon , P. Povinec , A. Pullia , D. C. Radford , Y. A. Ramachers , C. Ransom , L. Rauscher , M. Redchuk , A. L. Reine , S. Riboldi , K. Rielage , S. Rozov , E. Rukhadze , N. Rumyantseva , J. Runge , N. W. Ruof , R. Saakyan , S. Sailer , G. Salamanna , F. Salamida , D. J. Salvat , V. Sandukovsky , S. Schönert , A. Schültz , M. Schütt , D. C. Schaper , J. Schreiner , O. Schulz , M. Schuster , M. Schwarz , B. Schwingenheuer , O. Selivanenko , M. Shafiee , E. Shevchik , M. Shirchenko , Y. Shitov , H. Simgen , F. Simkovic , M. Skorokhvatov , M. Slavickova , K. Smolek , A. Smolnikov , J. A. Solomon , G. Song , K. Starosta , I. Stekl , M. Stommel , D. Stukov , R. R. Sumathi , D. A. Sweigart , K. Szczepaniec , L. Taffarello , D. Tagnani , R. Tayloe , D. Tedeschi , M. Turqueti , R. L. Varner , S. Vasilyev , A. Veresnikova , K. Vetter , C. Vignoli , C. Vogl , K. von Sturm , D. Waters , J. C. Waters , W. Wei , C. Wiesinger , J. F. Wilkerson , M. Willers , C. Wiseman , M. Wojcik , V. H. -S. Wu , W. Xu , E. Yakushev , T. Ye , C. -H. Yu , V. Yumatov , N. Zaretski , J. Zeman , I. Zhitnikov , D. Zinatulina , A. -K. Zschocke , A. J. Zsigmond , K. Zuber , G. Zuzel

The NEMO-3 detector, which had been operating in the Modane Underground Laboratory from 2003 to 2010, was designed to search for neutrinoless double $\beta$ ($0\nu\beta\beta$) decay. We report final results of a search for $0\nu\beta\beta$…

The GERmanium Detector Array (GERDA) experiment searched for the lepton-number-violating neutrinoless double-$\beta$ ($0\nu\beta\beta$) decay of $^{76}$Ge, whose discovery would have far-reaching implications in cosmology and particle…

Nuclear Experiment · Physics 2021-01-04 GERDA collaboration , M. Agostini , G. R. Araujo , A. M. Bakalyarov , M. Balata , I. Barabanov , L. Baudis , C. Bauer , E. Bellotti , S. Belogurov , A. Bettini , L. Bezrukov , V. Biancacci , D. Borowicz , E. Bossio , V. Bothe , V. Brudanin , R. Brugnera , A. Caldwell , C. Cattadori , A. Chernogorov , T. Comellato , V. D'Andrea , E. V. Demidova , N. Di Marco , E. Doroshkevich , F. Fischer , M. Fomina , A. Gangapshev , A. Garfagnini , C. Gooch , P. Grabmayr , V. Gurentsov , K. Gusev , J. Hakenmüller , S. Hemmer , R. Hiller , W. Hofmann , J. Huang , M. Hult , L. V. Inzhechik , J. Janicskó Csáthy , J. Jochum , M. Junker , V. Kazalov , Y. Kermaïdic , H. Khushbakht , T. Kihm , I. V. Kirpichnikov , A. Klimenko , R. Kneißl , K. T. Knöpfle , O. Kochetov , V. N. Kornoukhov , P. Krause , V. V. Kuzminov , M. Laubenstein , A. Lazzaro , M. Lindner , I. Lippi , A. Lubashevskiy , B. Lubsandorzhiev , G. Lutter , C. Macolino , B. Majorovits , W. Maneschg , L. Manzanillas , M. Miloradovic , R. Mingazheva , M. Misiaszek , P. Moseev , Y. Müller , I. Nemchenok , K. Panas , L. Pandola , K. Pelczar , L. Pertoldi , P. Piseri , A. Pullia , C. Ransom , L. Rauscher , S. Riboldi , N. Rumyantseva , C. Sada , F. Salamida , S. Schönert , J. Schreiner , M. Schütt , A. -K. Schütz , O. Schulz , M. Schwarz , B. Schwingenheuer , O. Selivanenko , E. Shevchik , M. Shirchenko , L. Shtembari , H. Simgen , A. Smolnikov , D. Stukov , A. A. Vasenko , A. Veresnikova , C. Vignoli , K. von Sturm , T. Wester , C. Wiesinger , M. Wojcik , E. Yanovich , B. Zatschler , I. Zhitnikov , S. V. Zhukov , D. Zinatulina , A. Zschocke , A. J. Zsigmond , K. Zuber , G. Zuzel