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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

Results of several double beta decay experiments, performed with the help of low background crystal scintillators, are presented. In particular, the half-life value of the two-neutrino double beta decay of 116-Cd has been measured as 2.9…

Nuclear Experiment · Physics 2011-12-30 F. A. Danevich

Tremendous efforts are required to scale the summit of observing neutrinoless double beta decay ($0 \nu \beta \beta$). This article quantitatively explores the interplay between exposure (target mass X data taking time) and background…

High Energy Physics - Experiment · Physics 2020-01-28 M. K. Singh , H. T. Wong , L. Singh , V. Sharma , V. Singh , Q. Yue

New results for the double beta decay of 76Ge are presented. They are extracted from Data obtained with the HEIDELBERG-MOSCOW, which operates five enriched 76Ge detectors in an extreme low-level environment in the GRAN SASSO. The two…

If neutrinoless double beta decay is discovered, the next natural step would be understanding the lepton number violating physics responsible for it. Several alternatives exist beyond the exchange of light neutrinos. Some of these…

High Energy Physics - Experiment · Physics 2025-06-13 NEXT Collaboration , M. Martínez-Vara , K. Mistry , F. Pompa , B. J. P. Jones , J. Martín-Albo , M. Sorel , C. Adams , H. Almazán , V. Álvarez , B. Aparicio , A. I. Aranburu , L. Arazi , I. J. Arnquist , F. Auria-Luna , S. Ayet , C. D. R. Azevedo , K. Bailey , F. Ballester , M. del Barrio-Torregrosa , A. Bayo , J. M. Benlloch-Rodríguez , F. I. G. M. Borges , A. Brodolin , N. Byrnes , S. Cárcel , A. Castillo , E. Church , L. Cid , C. A. N. Conde , T. Contreras , F. P. Cossío , R. Coupe , E. Dey , G. Díaz , C. Echevarria , M. Elorza , J. Escada , R. Esteve , R. Felkai , L. M. P. Fernandes , P. Ferrario , A. L. Ferreira , F. W. Foss , Z. Freixa , J. García-Barrena , J. J. Gómez-Cadenas , J. W. R. Grocott , R. Guenette , J. Hauptman , C. A. O. Henriques , J. A. Hernando Morata , P. Herrero-Gómez , V. Herrero , C. Hervés Carrete , Y. Ifergan , F. Kellerer , L. Larizgoitia , A. Larumbe , P. Lebrun , F. Lopez , N. López-March , R. Madigan , R. D. P. Mano , A. P. Marques , G. Martínez-Lema , R. L. Miller , J. Molina-Canteras , F. Monrabal , C. M. B. Monteiro , F. J. Mora , K. E. Navarro , P. Novella , A. Nuñez , D. R. Nygren , E. Oblak , J. Palacio , B. Palmeiro , A. Para , I. Parmaksiz , A. Pazos , J. Pelegrin , M. Pérez Maneiro , M. Querol , J. Renner , I. Rivilla , C. Rogero , L. Rogers , B. Romeo , C. Romo-Luque , V. San Nacienciano , F. P. Santos , J. M. F. dos Santos , M. Seemann , I. Shomroni , P. A. O. C. Silva , A. Simón , S. R. Soleti , J. Soto-Oton , J. M. R. Teixeira , S. Teruel-Pardo , J. F. Toledo , C. Tonnelé , S. Torelli , J. Torrent , A. Trettin , A. Usón , P. R. G. Valle , J. F. C. A. Veloso , J. Waiton , A. Yubero-Navarro

Neutrino nature and absolute mass scale are major questions in particle physics which cannot be addressed by the present neutrino oscillation program. To answer these two questions, several neutrinoless double beta decay experiments are…

High Energy Physics - Experiment · Physics 2010-02-26 Marcos Dracos

The NEXT-100 detector will search for the neutrinoless double beta decay of $^{136}$Xe using an electroluminescent high-pressure xenon gas TPC filled with 100 kg of enriched Xe. An observation of this hypothetical process would establish a…

Instrumentation and Detectors · Physics 2019-08-13 D. Lorca

Neutrinoless double beta decay is a process that violates lepton number conservation. It is predicted to occur in extensions of the Standard Model of particle physics. This Letter reports the results from Phase I of the GERmanium Detector…

Nuclear Experiment · Physics 2013-12-09 M. Agostini , M. Allardt , E. Andreotti , A. M. Bakalyarov , M. Balata , I. Barabanov , M. Barnabé Heider , N. Barros , L. Baudis , C. Bauer , N. Becerici-Schmidt , E. Bellotti , S. Belogurov , S. T. Belyaev , G. Benato , A. Bettini , L. Bezrukov , T. Bode , V. Brudanin , R. Brugnera , D. Budjáš , A. Caldwell , C. Cattadori , A. Chernogorov , F. Cossavella , E. V. Demidova , A. Domula , V. Egorov , R. Falkenstein , A. Ferella , K. Freund , N. Frodyma , A. Gangapshev , A. Garfagnini , C. Gotti , P. Grabmayr , V. Gurentsov , K. Gusev , K. K. Guthikonda , W. Hampel , A. Hegai , M. Heisel , S. Hemmer , G. Heusser , W. Hofmann , M. Hult , L. V. Inzhechik , L. Ioannucci , J. Janicskó Csáthy , J. Jochum , M. Junker , T. Kihm , I. V. Kirpichnikov , A. Kirsch , A. Klimenko , K. T. Knöpfle , O. Kochetov , V. N. Kornoukhov , V. V. Kuzminov , M. Laubenstein , A. Lazzaro , V. I. Lebedev , B. Lehnert , H. Y. Liao , M. Lindner , I. Lippi , X. Liu , A. Lubashevskiy , B. Lubsandorzhiev , G. Lutter , C. Macolino , A. A. Machado , B. Majorovits , W. Maneschg , M. Misiaszek , I. Nemchenok , S. Nisi , C. O'Shaughnessy , L. Pandola , K. Pelczar , G. Pessina , %F. Potenza , A. Pullia , S. Riboldi , N. Rumyantseva , C. Sada , M. Salathe , C. Schmitt , J. Schreiner , O. Schulz , B. Schwingenheuer , S. Schönert , E. Shevchik , M. Shirchenko , H. Simgen , A. Smolnikov , L. Stanco , H. Strecker , M. Tarka , C. A. Ur , A. A. Vasenko , O. Volynets , K. von Sturm , V. Wagner , M. Walter , A. Wegmann , T. Wester , M. Wojcik , E. Yanovich , P. Zavarise , I. Zhitnikov , S. V. Zhukov , D. Zinatulina , K. Zuber , G. Zuzel

The ability of background discrimination using pulse shape discrimination (PSD) in broad-energy germanium (BEGe) detectors makes them as competitive candidates for neutrinoless double beta decay (0{\nu}\b{eta}\b{eta}) experiments. The…

Instrumentation and Detectors · Physics 2016-06-28 Zhi Zeng , Yu-Hao Mi , Ming Zeng , Hao Ma , Qian Yue , Jian-Ping Cheng , Jun-Li Li , Rui Qiu , Hui Zhang

Searches for neutrinoless double-beta decay continue to expand our understanding of the lepton sector, with experiments now pursuing ton-scale target masses with sensitivity to $m_{\beta\beta}$ covering the allowed parameter space for the…

High Energy Physics - Experiment · Physics 2023-04-10 A. Mastbaum , F. Psihas , J. Zennamo

The search for neutrinoless double beta ($0\nu\beta\beta$) decay is the best way to test lepton number violation and Majorana nature of neutrinos. One of the most promising techniques to discover $0\nu\beta\beta$ decay is by operating…

High Energy Physics - Experiment · Physics 2019-05-17 V. D'Andrea

The pairing properties of the neutrinoless double-$\beta$ decay candidate $^{116}$Cd have been investigated. Measurements of the two-neutron removal reactions on isotopes of $^{114,116}$Cd have been made in order to identify 0$^+$ strength…

Spectroscopic studies of two beta-rays from 100Mo are shown to be of potential interest for investigating both the Majorana neutrino mass by neutrinoless double beta-decay and low energy solar neutrino's by inverse beta-decay. With a…

Nuclear Experiment · Physics 2009-10-31 H. Ejiri , J. Engel , R. Hazama , P. Krastev , N. Kudomi , R. G. H. Robertson

Inelastic neutron scattering and reactions on Pb isotopes can result in gamma rays near the signature endpoint energy in a number of double-beta decay isotopes. In particular, there are gamma-ray transitions in Pb-206,207,208 that might…

Nuclear Experiment · Physics 2010-05-27 V. E. Guiseppe , M. Devlin , S. R. Elliott , N. Fotiades , A. Hime , D. -M. Mei , R. O. Nelson , D. V. Perepelitsa

Heidelberg-Moscow Collaboration experimental data [1-4] with the claim for the observation of the neutrinoless double beta-decay of Ge-76 has been carefully analyzed. The analysis gave an evidence that the observed 2039 kev line in the full…

High Energy Physics - Phenomenology · Physics 2015-09-02 I. V. Kirpichnikov

Experiments designed to study rare processes, such as neutrinoless double beta decay ($0\nu\beta\beta$), are crucial tests for physics beyond the standard model. These experiments rely on reducing the intrinsic radioactive background to…

A large experimental program is being mounted to search for neutrinoless double-beta decay over the next decade. Multiple experiments using different target isotopes are being prepared to explore the whole parameter space allowed for…

High Energy Physics - Phenomenology · Physics 2023-03-22 Matteo Agostini , Frank F. Deppisch , Graham Van Goffrier

The GERmanium Detector Array (GERDA) experiment located at the INFN Gran Sasso Laboratory (Italy), is looking for the neutrinoless double beta decay of Ge76, by using high-purity germanium detectors made from isotopically enriched material.…

Nuclear Experiment · Physics 2020-02-12 GERDA Collaboration , M. Agostini , A. M. Bakalyarov , M. Balata , I. Barabanov , L. Baudis , C. Bauer , E. Bellotti , S. Belogurov , A. Bettini , L. Bezrukov , T. Bode , V. Brudanin , R. Brugnera , A. Caldwell , C. Cattadori , A. Chernogorov , V. D'Andrea , E. V. Demidova , N. Di Marco , A. Domula , E. Doroshkevich , V. Egorov , R. Falkenstein , A. Gangapshev , A. Garfagnini , C. Gooch , P. Grabmayr , V. Gurentsov , K. Gusev , J. Hakenmüller , A. Hegai , M. Heisel , S. Hemmer , R. Hiller , W. Hofmann , M. Hult , L. V. Inzhechik , J. Janicskó Csáthy , J. Jochum , M. Junker , V. Kazalov , Y. Kermaidic , T. Kihm , I. V. Kirpichnikov , A. Kirsch , A. Kish , A. Klimenko , R. Kneißl , K. T. Knöpfle , O. Kochetov , V. N. Kornoukhov , V. V. Kuzminov , M. Laubenstein , A. Lazzaro , V. I. Lebedev , M. Lindner , I. Lippi , A. Lubashevskiy , B. Lubsandorzhiev , G. Lutter , C. Macolino , B. Majorovits , W. Maneschg , M. Miloradovic , R. Mingazheva , M. Misiaszek , P. Moseev , I. Nemchenok , K. Panas , L. Pandola , A. Pullia , C. Ransom , S. Riboldi , N. Rumyantseva , C. Sada , F. Salamida , C. Schmitt , B. Schneider , J. Schreiner , O. Schulz , B. Schwingenheuer , S. Schönert , A-K. Schütz , O. Selivanenko , E. Shevchik , M. Shirchenko , H. Simgen , A. Smolnikov , L. Stanco , L. Vanhoefer , A. A. Vasenko , A. Veresnikova , K. von Sturm , V. Wagner , A. Wegmann , T. Wester , C. Wiesinger , M. Wojcik , E. Yanovich , I. Zhitnikov , S. V. Zhukov , D. Zinatulina , A. J. Zsigmond , K. Zuber , G. Zuzel

The search for neutrino-less double-beta decay has been a very active field of research in the last decade. Neutrino-less double-beta decay may answer essential open questions in neutrino physics. While double-beta decay accompanied by the…

Nuclear Experiment · Physics 2019-08-14 Delia Tosi

Natural radioactivity represents one of the main backgrounds in the search for neutrinoless double beta decay. Within the NEXT physics program, the radioactivity-induced backgrounds are measured with the NEXT-White detector. Data from 37.9…