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The NEMO-3 experiment at the Modane Underground Laboratory has investigated the double-$\beta$ decay of $^{48}{\rm Ca}$. Using $5.25$ yr of data recorded with a $6.99\,{\rm g}$ sample of $^{48}{\rm Ca}$, approximately $150$ double-$\beta$…

The CUPID-Mo experiment, located at Laboratoire Souterrain de Modane (France), was a demonstrator experiment for CUPID. It consisted of an array of 20 Li$_2^{100}$MoO$_4$ (LMO) calorimeters each equipped with a Ge light detector (LD) for…

All existing positive results on two-neutrino double beta decay and two-neutrino double electron capture in different nuclei have been analyzed. Weighted average and recommended half-life values for $^{48}$Ca, $^{76}$Ge, $^{82}$Se,…

Nuclear Experiment · Physics 2020-10-01 Alexander Barabash

A search for double-beta decay of $^{190}$Pt and $^{198}$Pt with emission of $\gamma$-ray quanta was realized at the HADES underground laboratory with a 148 g platinum sample measured by two ultralow-background HPGe detectors over 8946 h.…

The $2\nu2\beta$ decay of $^{150}$Nd to the first excited 740.5 keV $0^{+}_{1}$ level of $^{150}$Sm was measured over 5.845 yr with the help of a four-crystal low-background HPGe $\gamma$ spectrometry system in the underground…

Results on the search for rare nuclear decays with the ultra low background facility STELLA at the LNGS using gamma ray spectrometry are presented. In particular, the best T1/2 limits were obtained for double beta processes in 96Ru and…

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 first search for double electron capture ($2\varepsilon$) and electron capture with positron emission ($\varepsilon\beta^+$) of $^{162}$Er to the ground state and to several excited levels of $^{162}$Dy was realized with 326 g of highly…

CUPID-0 is the first pilot experiment of CUPID, a next-generation project searching for neutrino-less double beta decay. In its first scientific run, CUPID-0 operated 26 ZnSe cryogenic calorimeters coupled to light detectors in the…

The MAJORANA DEMONSTRATOR is searching for neutrinoless double-beta decay in $^{76}$Ge with two modular arrays of natural and $^{76}$Ge-enriched germanium detectors. It is located at the 4850 level of Sanford Underground Research Facility…

High Energy Physics - Experiment · Physics 2020-01-08 J. M. López-Castaño

We searched for the neutrino-less double beta decay(0nbb) of 48Ca by using CaF2(Eu) scintillators. Analysis of their pulse shapes was effective to reduce backgrounds. No events are observed in the Q-value region for the data of 3394 kg…

For the first time an extensive search for various double beta decay modes of 124Sn and 112Sn has been performed. A total exposure of 43.29 kg.days has been accumulated. New half-life limits of 124Sn into excited states of 124Te have been…

Nuclear Experiment · Physics 2008-11-26 J. Dawson , R. Ramaswamy , C. Reeve , J. R. Wilson , K. Zuber

The two neutrino positron double beta decay of $^{106}$Cd for 0$^{+} \to $ 0$^{+}$ transition has been studied in the Hartree-Fock-Bogoliubov model in conjunction with the summation method. In the first step, the reliability of the…

Nuclear Theory · Physics 2009-11-10 A. Shukla , P. K. Raina , R. Chandra , P. K. Rath , J. G. Hirsch

Double beta decay of $^{150}$Nd and $^{148}$Nd to the excited states of daughter nuclei have been studied using a 400 cm$^3$ low-background HPGe detector and an external source consisting of 3046 g of natural Nd$_2$O$_3$ powder. The…

Nuclear Experiment · Physics 2009-12-31 A. S. Barabash , Ph. Hubert , A. Nachab , V. I. Umatov

A 510 day long-term measurement of a 45.3 g platinum foil acting as the sample and high voltage contact in an ultra-low-background high purity germanium detector was performed at Laboratori Nazionali del Gran Sasso (Italy). The data was…

Nuclear Experiment · Physics 2023-05-31 B. Broerman , M. Laubenstein , S. Nagorny , S. Nisi , N. Song , A. C. Vincent

An attempt to study the feasibility of a new experiment to search for double beta decay in $^{112}$Sn and $^{124}$Sn was carried out by using ultra-low background HPGe detector (244 cm$^{3}$) inside the Gran Sasso National Laboratory (LNGS)…

The NEMO-3 experiment measured the half-life of the $2\nu\beta\beta$ decay and searched for the $0\nu\beta\beta$ decay of $^{116}$Cd. Using $410$ g of $^{116}$Cd installed in the detector with an exposure of $5.26$ y, ($4968\pm74$) events…

The primary goal of the GERmanium Detector Array (Gerda) experiment at the Laboratori Nazionali del Gran Sasso of INFN is the search for the neutrinoless double beta decay of Ge-76. High-purity germanium detectors made from material…

Nuclear Experiment · Physics 2013-02-14 GERDA Collaboration , M. Agostini , M. Allardt , E. Andreotti , A. M. Bakalyarov , M. Balata , I. Barabanov , M. Barnabe 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. Budjas , A. Caldwell , C. Cattadori , A. Chernogorov , F. Cossavella , E. V. Demidova , A. Denisov , A. Domula , V. Egorov , R. Falkenstein , A. D. Ferella , K. Freund , F. Froborg , N. Frodyma , A. Gangapshev , A. Garfagnini , S. Gazzana , P. Grambayr , 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. Janicsko Csathy , J. Jochum , M. Junker , S. Kianovsky , I. V. Kirpichnikov , A. Kirsch , A. Klimenko , K. T. Knoepfle , O. Kochetov , V. N. Kornoukhov , V. Kusminov , M. Laubenstein , A. Lazzaro , V. I. Lebedev , B. Lehnert , H. Y. Liao , M. Lindner , I. Lippi , X. Liu , A. Lubashevskiy , B. Lubsandorzhiev , G. Lutter , A. A. Machado , B. Majorovits , W. Maneschg , I. Nemchenok , S. Nisi , C. O'Shaughnessy , L. Pandola , K. Pelczar , L. Peraro , A. Pullia , S. Riboldi , F. Ritter , C. Sada , M. Salathe , C. Schmitt , S. Schoenert , J. Schreiner , O. Schulz , B. Schwingenheuer , 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 , M. Walter , A. Wegmann , M. Wojcik , E. Yanovich , P. Zavarise , I. Zhitnikov , S. V. Zhukov , D. Zinatulina , K. Zuber , G. Zuzel

The CUPID-Mo experiment at the Laboratoire Souterrain de Modane (France) is a demonstrator for CUPID, the next-generation ton-scale cryogenic $0\nu\beta\beta$ experiment. It consists of a 4.2 kg array of 20 enriched Li$_{2}$$^{100}$MoO$_4$…