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Results on $$\beta \beta $$ β β decay with emission of two neutrinos or Majorons in $$^{76}$$ 76 Ge from GERDA Phase I

M. Agostini,M. Allardt,A. M. Bakalyarov,M. Balata,И. Р. Барабанов,N. Barros,L. Baudis,C. Bauer,N. Becerici-Schmidt,E. Bellotti,S. Belogurov,S. T. Belyaev,G. Benato,A. Bettini,L. Bezrukov,T. Bode,D. Borowicz,V. Brudanin,R. Brugnera,D. Budjáš,A. Caldwell,C. Cattadori,A. Chernogorov,V. D’Andrea,É. V. Demidova,A. di Vacri,A. Domula,E. Doroshkevich,V. Egorov,R. Falkenstein,О. В. Федорова,K. Freund,N. Frodyma,A. M. Gangapshev,A. Garfagnini,P. Grabmayr,V. Gurentsov,K. Gusev,A. Hegai,M. Heisel,S. Hemmer,G. Heusser,W. Hofmann,M. Hult,Л. В. Инжечик,J. Janicskó Csáthy,J. Jochum,M. Junker,V. V. Kazalov,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. Liao,M. Lindner,I. Lippi,A. Lubashevskiy,Б. Лубсандоржиев,G. Lutter,C. Macolino,B. Majorovits,W. Maneschg,E. Medinaceli,M. Misiaszek,P. Moseev,I. Nemchenok,D. Palioselitis,K. Panas,L. Pandola,K. Pelczar,A. Pullia,S. Riboldi,N. Rumyantseva,C. Sada,M. Salathe,Christian Schmitt,Basil Schneider,S. Schönert,J. Schreiner,A.-K. Schütz,O. Schulz,B. Schwingenheuer,O. Selivanenko,M. Shirchenko,H. Simgen,A. Smolnikov,L. Stančo,M. Stepaniuk,C. A. Ur,L. Vanhoefer,A. A. Vasenko,A. Veresnikova,K. von Sturm,Victoria Wagner,Michael Walter,A. Wegmann,T. Wester,H. Wilsenach,Marcin Wójcik,E. Yanovich,P. Zavarise,I. Zhitnikov,С. В. Жуков,D. Zinatulina,Κ. Zuber,G. Zuzel

Physics

Double beta decay

Neutrino

2015

A search for neutrinoless $\beta\beta$ decay processes accompanied with Majoron emission has been performed using data collected during Phase I of the GERmanium Detector Array (GERDA) experiment at the Laboratori Nazionali del Gran Sasso of INFN (Italy). Processes with spectral indices n = 1, 2, 3, 7 were searched for. No signals were found and lower limits of the order of 10$^{23}$ yr on their half-lives were derived, yielding substantially improved results compared to previous experiments with $^{76}$Ge. A new result for the half-life of the neutrino-accompanied $\beta\beta$ decay of $^{76}$Ge with significantly reduced uncertainties is also given, resulting in $T^{2\nu}_{1/2} = (1.926 \pm 0.095)\cdot10^{21}$ yr.

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“Results on $$\beta \beta $$ β β decay with emission of two neutrinos or Majorons in $$^{76}$$ 76 Ge from GERDA Phase I” is a paper by M. Agostini M. Allardt A. M. Bakalyarov M. Balata И. Р. Барабанов N. Barros L. Baudis C. Bauer N. Becerici-Schmidt E. Bellotti S. Belogurov S. T. Belyaev G. Benato A. Bettini L. Bezrukov T. Bode D. Borowicz V. Brudanin R. Brugnera D. Budjáš A. Caldwell C. Cattadori A. Chernogorov V. D’Andrea É. V. Demidova A. di Vacri A. Domula E. Doroshkevich V. Egorov R. Falkenstein О. В. Федорова K. Freund N. Frodyma A. M. Gangapshev A. Garfagnini P. Grabmayr V. Gurentsov K. Gusev A. Hegai M. Heisel S. Hemmer G. Heusser W. Hofmann M. Hult Л. В. Инжечик J. Janicskó Csáthy J. Jochum M. Junker V. V. Kazalov 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. Liao M. Lindner I. Lippi A. Lubashevskiy Б. Лубсандоржиев G. Lutter C. Macolino B. Majorovits W. Maneschg E. Medinaceli M. Misiaszek P. Moseev I. Nemchenok D. Palioselitis K. Panas L. Pandola K. Pelczar A. Pullia S. Riboldi N. Rumyantseva C. Sada M. Salathe Christian Schmitt Basil Schneider S. Schönert J. Schreiner A.-K. Schütz O. Schulz B. Schwingenheuer O. Selivanenko M. Shirchenko H. Simgen A. Smolnikov L. Stančo M. Stepaniuk C. A. Ur L. Vanhoefer A. A. Vasenko A. Veresnikova K. von Sturm Victoria Wagner Michael Walter A. Wegmann T. Wester H. Wilsenach Marcin Wójcik E. Yanovich P. Zavarise I. Zhitnikov С. В. Жуков D. Zinatulina Κ. Zuber G. Zuzel published in 2015. It has an Open Access status of “gold”. You can read and download a PDF Full Text of this paper here.