Related papers: First Search for Lorentz and CPT Violation in Doub…

Investigation of double beta decay with the NEMO-3 detector

The double beta decay experiment NEMO~3 has been taking data since February 2003. The aim of this experiment is to search for neutrinoless ($0\nu\beta\beta$) decay and investigate two neutrino double beta decay in seven different…

Nuclear Experiment · Physics 2015-05-18 A. S. Barabash , V. B. Brudanin , the NEMO Collaboration

Testing Lorentz-symmetry violation via electroweak decays

In this work we introduce CPT-odd non-minimal Lorentz-symmetry violating couplings to the electroweak sector modifying the interaction between leptons and gauge bosons. The vertex rules allow us to calculate tree-level processes modified by…

High Energy Physics - Phenomenology · Physics 2020-04-08 Y. M. P. Gomes , P. C. Malta , M. J. Neves

Search for Double Beta Decay of $^{136}$Xe to the $0^+_1$ Excited State of $^{136}$Ba with PandaX-4T

We perform a search of double beta decay of $^{136}$Xe to the excited state, $0^+_1$, of $^{136}$Ba (2$\nu \beta \beta$-0$_1^+$), using the dual-phase xenon detector of PandaX-4T with the first 94.9-day commissioning data. The multi-site…

Nuclear Experiment · Physics 2025-03-10 PandaX Collaboration , Lingyin Luo , Zihao Bo , Wei Chen , Xun Chen , Yunhua Chen , Zhaokan Cheng , Xiangyi Cui , Yingji Fang , Deqing Fang , Zhixing Gao , Lisheng Geng , Karl Giboni , Xunan Guo , Xuyuan Guo , Zichao Guo , Chencheng Han , Ke Han , Changda He , Jinrong He , Di Huang , Houqi Huang , Junting Huang , Ruquan Hou , Yu Hou , Xiangdong Ji , Xiangpan Ji , Yonglin Ju , Chenxiang Li , Tao Li , Jiafu Li , Mingchuan Li , Shuaijie Li , Zhiyuan Li , Qing Lin , Jianglai Liu , Congcong Lu , Xiaoying Lu , Yunyang Luo , Wenbo Ma , Yugang Ma , Yajun Mao , Yue Meng , Xuyang Ning , Binyu Pang , Ningchun Qi , Zhicheng Qian , Xiangxiang Ren , Dong Shan , Xiaofeng Shang , Xiyuan Shao , Guofang Shen , Manbin Shen , Wenliang Sun , Yi Tao , Anqing Wang , Guanbo Wang , Hao Wang , Jiamin Wang , Lei Wang , Meng Wang , Qiuhong Wang , Shaobo Wang , Siguang Wang , Wei Wang , Xiuli Wang , Xu Wang , Zhou Wang , Yuehuan Wei , Weihao Wu , Yuan Wu , Mengjiao Xiao , Xiang Xiao , Kaizhi Xiong , Yifan Xu , Shunyu Yao , Binbin Yan , Xiyu Yan , Yong Yang , Peihua Ye , Chunxu Yu , Ying Yuan , Zhe Yuan , Youhui Yun , Xinning Zeng , Minzhen Zhang , Peng Zhang , Shibo Zhang , Shu Zhang , Tao Zhang , Wei Zhang , Yang Zhang , Yingxin Zhang , Yuanyuan Zhang , Li Zhao , Jifang Zhou , Jiaxu Zhou , Ning Zhou , Xiaopeng Zhou , Yubo Zhou , Zhizhen Zhou

Search for Neutrinoless Double-Beta Decay

After the pioneering work of the Heidelberg-Moscow (HDM) and International Germanium Experiment (IGEX) groups, the second round of neutrinoless double-$\beta$ decay searches currently underway has or will improve the life-time limits of…

Nuclear Experiment · Physics 2014-12-03 Werner Tornow

Searching for $^{76}$Ge neutrinoless double beta decay with the CDEX-1B experiment

We operated a p-type point contact high purity germanium (PPCGe) detector (CDEX-1B, 1.008 kg) in the China Jinping Underground Laboratory (CJPL) for 500.3 days to search for neutrinoless double beta ($0\nu\beta\beta$) decay of $^{76}$Ge. A…

Nuclear Experiment · Physics 2024-09-24 B. T. Zhang , J. Z. Wang , L. T. Yang , Q. Yue , K. J. Kang , Y. J. Li , H. P. An , Greeshma C. , J. P. Chang , Y. H. Chen , J. P. Cheng , W. H. Dai , Z. Deng , C. H. Fang , X. P. Geng , H. Gong , Q. J. Guo , X. Y. Guo , L. He , S. M. He , J. W. Hu , H. X. Huang , T. C. Huang , H. T. Jia , X. Jiang , S. Karmakar , H. B. Li , J. M. Li , J. Li , Q. Y. Li , R. M. J. Li , X. Q. Li , Y. L. Li , Y. F. Liang , B. Liao , F. K. Lin , S. T. Lin , J. X. Liu , S. K. Liu , Y. D. Liu , Y. Liu , Y. Y. Liu , Z. Z. Liu , H. Ma , Y. C. Mao , Q. Y. Nie , J. H. Ning , H. Pan , N. C. Qi , J. Ren , X. C. Ruan , Z. She , M. K. Singh , T. X. Sun , C. J. Tang , W. Y. Tang , Y. Tian , G. F. Wang , L. Wang , Q. Wang , Y. F. Wang , Y. X. Wang , H. T. Wong , S. Y. Wu , Y. C. Wu , H. Y. Xing , R. Xu , Y. Xu , T. Xue , Y. L. Yan , N. Yi , C. X. Yu , H. J. Yu , J. F. Yue , M. Zeng , Z. Zeng , F. S. Zhang , L. Zhang , Z. H. Zhang , Z. Y. Zhang , K. K. Zhao , M. G. Zhao , J. F. Zhou , Z. Y. Zhou , J. J. Zhu

Shell Model description of the beta beta decay of 136Xe

We study in this letter the double beta decay of 136Xe with emission of two neutrinos which has been recently measured by the EXO-200 collaboration. We use the same shell model framework, valence space, and effective interaction that we…

Nuclear Theory · Physics 2015-06-03 Etienne Caurier , Frederic Nowacki , Alfredo Poves

Search for Neutrinoless Double-Beta Decay of $^{76}$Ge with a Natural Broad Energy Germanium Detector

A natural broad energy germanium (BEGe) detector is operated in the China Jinping Underground Laboratory (CJPL) for a feasibility study of building the next generation experiment of the neutrinoless double-beta (0{$\nu\beta\beta$}) decay of…

Nuclear Experiment · Physics 2022-08-19 CDEX collaboration , W. H. Dai , H. Ma , Q. Yue , Z. She , K. J. Kang , Y. J. Li , M. Agartioglu , H. P. An , J. P. Chang , Y. H. Chen , J. P. Cheng , Z. Deng , C. H. Fang , X. P. Geng , H. Gong , Q. J. Guo , X. Y. Guo , L. He , S. M. He , J. W. Hu , H. X. Huang , T. C. Huang , H. T. Jia , X. Jiang , H. B. Li , J. M. Li , J. Li , Q. Y. Li , R. M. J. Li , X. Q. Li , Y. L. Li , Y. F. Liang , B. Liao , F. K. Lin , S. T. Lin , S. K. Liu , Y. D. Liu , Y. Liu , Y. Y. Liu , Z. Z. Liu , Y. C. Mao , Q. Y. Nie , J. H. Ning , H. Pan , N. C. Qi , J. Ren , X. C. Ruan , K. Saraswat , V. Sharma , M. K. Singh , T. X. Sun , C. J. Tang , W. Y. Tang , Y. Tian , G. F. Wang , L. Wang , Q. Wang , Y. Wang , Y. X. Wang , H. T. Wong , S. Y. Wu , Y. C. Wu , H. Y. Xing , R. Xu , Y. Xu , T. Xue , Y. L. Yan , L. T. Yang , C. H. Yeh , N. Yi , C. X. Yu , H. J. Yu , J. F. Yue , M. Zeng , Z. Zeng , B. T. Zhang , F. S. Zhang , L. Zhang , Z. H. Zhang , Z. Y. Zhang , K. K. Zhao , M. G. Zhao , J. F. Zhou , Z. Y. Zhou , J. J. Zhu

First results from LEGEND-200 on the search for neutrinoless double beta decay

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

Search for exotic physics in double-$\beta$ decays with GERDA Phase II

A search for Beyond the Standard Model double-$\beta$ decay modes of $^{76}$Ge has been performed with data collected during the Phase II of the GERmanium Detector Array (GERDA) experiment, located at Laboratori Nazionali del Gran Sasso of…

Nuclear Experiment · Physics 2022-09-07 The GERDA collaboration , M. Agostini , A. Alexander , G. Araujo , A. M. Bakalyarov , M. Balata , I. Barabanov , L. Baudis , C. Bauer , S. Belogurov , A. Bettini , L. Bezrukov , V. Biancacci , E. Bossio , V. Bothe , R. Brugnera , A. Caldwell , C. Cattadori , A. Chernogorov , T. Comellato , V. D'Andrea , E. V. Demidova , A. Di Giacinto , 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 , W. Hofmann , J. Huang , M. Hult , L. V. Inzhechik , J. Janicskó Csáthy , J. Jochum , M. Junker , V. Kazalov , Y. Kermaïdic , H. Khushbakht , T. Kihm , K. Kilgus , I. V. Kirpichnikov , A. Klimenko , K. T. Knöpfle , O. Kochetov , V. N. Kornoukhov , P. Krause , V. V. Kuzminov , M. Laubenstein , M. Lindner , I. Lippi , A. Lubashevskiy , B. Lubsandorzhiev , G. Lutter , C. Macolino , B. Majorovits , W. Maneschg , L. Manzanillas , G. Marshall , M. Miloradovic , R. Mingazheva , M. Misiaszek , M. Morella , Y. Müller , I. Nemchenok , L. Pandola , K. Pelczar , L. Pertoldi , P. Piseri , A. Pullia , C. Ransom , L. Rauscher , M. Redchuk , S. Riboldi , N. Rumyantseva , C. Sada , S. Sailer , 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

Systematic study of trace radioactive impurities in candidate construction materials for EXO-200

The Enriched Xenon Observatory (EXO) will search for double beta decays of 136Xe. We report the results of a systematic study of trace concentrations of radioactive impurities in a wide range of raw materials and finished parts considered…

Instrumentation and Detectors · Physics 2008-11-26 D. S. Leonard , P. Grinberg , P. Weber , E. Baussan , Z. Djurcic , G. Keefer , A. Piepke , A. Pocar , J. -L. Vuilleumier , J. -M. Vuilleumier , D. Akimov , A. Bellerive , M. Bowcock , M. Breidenbach , A. Burenkov , R. Conley , W. Craddock , M. Danilov , R. DeVoe , M. Dixit , A. Dolgolenko , I. Ekchtout , W. Fairbank , J. Farine , P. Fierlinger , B. Flatt , G. Gratta , M. Green , C. Hall , K. Hall , D. Hallman , C. Hargrove , R. Herbst , J. Hodgson , S. Jeng , S. Kolkowitz , A. Kovalenko , D. Kovalenko , F. LePort , D. Mackay , M. Moe , M. Montero Díez , R. Neilson , A. Odian , K. O'Sullivan , L. Ounalli , C. Y. Prescott , P. C. Rowson , D. Schenker , D. Sinclair , K. Skarpaas , G. Smirnov , V. Stekhanov , V. Strickland , C. Virtue , K. Wamba , J. Wodin

Probing Lorentz violation in $2\nu\beta\beta$ using single electron spectra and angular correlations

We show that the current search for Lorentz invariance violation (LIV) in the summed energy spectra of electrons in $2\nu\beta\beta$ decay can be extended by investigating the single electron spectra and the angular correlation between the…

Nuclear Theory · Physics 2021-03-03 O. V. Nitescu , S. A. Ghinescu , M. Mirea , S. Stoica

Investigation of the Lorentz invariance violation in two-neutrino double-beta decay

We make a comprehensive investigation of the Lorentz invariance violation (LIV) effects that may occur in two-neutrino double-beta ($2\nu\beta\beta$) decay for all the experimentally interesting nuclei. We deduce the formulas for the LIV…

Nuclear Theory · Physics 2022-04-13 S. A. Ghinescu , O. Nitescu , S. Stoica

Results of the LEGEND-200 experiment in the search for neutrinoless double beta decay

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

Search for two neutrino double electron capture of $^{124}$Xe and $^{126}$Xe in the full exposure of the LUX detector

Two-neutrino double electron capture is a process allowed in the Standard Model of Particle Physics. This rare decay has been observed in $^{78}$Kr, $^{130}$Ba and more recently in $^{124}$Xe. In this publication we report on the search for…

Nuclear Experiment · Physics 2020-09-15 LUX Collaboration , D. S. Akerib , S. Alsum , H. M. Araújo , X. Bai , J. Balajthy , A. Baxter , E. P. Bernard , A. Bernstein , T. P. Biesiadzinski , E. M. Boulton , B. Boxer , P. Brás , S. Burdin , D. Byram , M. C. Carmona-Benitez , C. Chan , J. E. Cutter , L. de Viveiros , E. Druszkiewicz , A. Fan , S. Fiorucci , R. J. Gaitskell , C. Ghag , M. G. D. Gilchriese , C. Gwilliam , C. R. Hall , S. J. Haselschwardt , S. A. Hertel , D. P. Hogan , M. Horn , D. Q. Huang , C. M. Ignarra , R. G. Jacobsen , O. Jahangir , W. Ji , K. Kamdin , K. Kazkaz , D. Khaitan , E. V. Korolkova , S. Kravits , V. A. Kudryavtsev , E. Leason , B. G. Lenardo , K. T. Lesko , J. Liao , J. Lin , A. Lindote , M. I. Lopes , A. Manalaysay , R. L. Mannino , N. Marangou , M. F. Marzioni , D. N. McKinsey , D. -M. Mei , M. Moongweluwan , J. A. Morad , A. St. J. Murphy , A. Naylor , C. Nehrkorn , H. N. Nelson , F. Neves , A. Nilima , K. C. Oliver-Mallory , K. J. Palladino , E. K. Pease , Q. Riffard , G. R. C. Rischbieter , C. Rhyne , P. Rossiter , S. Shaw , T. A. Shutt , C. Silva , M. Solmaz , V. N. Solovov , P. Sorensen , T. J. Sumner , M. Szydagis , D. J. Taylor , R. Taylor , W. C. Taylor , B. P. Tennyson , P. A. Terman , D. R. Tiedt , W. H. To , M. Tripathi , L. Tvrznikova , U. Utku , S. Uvarov , A. Vacheret , V. Velan , R. C. Webb , J. T. White , T. J. Whitis , M. S. Witherell , F. L. H. Wolfs , D. Woodward , J. Xu , C. Zhang

COBRA - Double beta decay searches using CdTe detectors

A new approach (called COBRA) for investigating double beta decay using CdTe (CdZnTe) semiconductor detectors is proposed. It follows the idea that source and detector are identical. This will allow simultaneous measurements of 5…

Nuclear Experiment · Physics 2009-11-07 K. Zuber

Double beta decay experiments: beginning of a new era

The review of current experiments on search and studying of double beta decay processes is done. Results of the most sensitive experiments are discussed and values of modern limits on effective Majorana neutrino mass ($<m_{\nu}>) are given.…

Nuclear Experiment · Physics 2012-09-20 A. S. Barabash

Electromagnetic Flavor-Changing Lepton Decays from Lorentz and CPT Violation

Lorentz- and CPT-violating effects initiating two-body electromagnetic flavor-changing decays of charged leptons are studied in the framework of Lorentz-violating effective field theory. An analysis of data from experiments at the Paul…

High Energy Physics - Phenomenology · Physics 2022-07-12 Alan Kostelecky , E. Passemar , N. Sherrill

Sensitivity of the NEXT experiment to Xe-124 double electron capture

Double electron capture by proton-rich nuclei is a second-order nuclear process analogous to double beta decay. Despite their similarities, the decay signature is quite different, potentially providing a new channel to measure the…

High Energy Physics - Experiment · Physics 2021-03-16 G. Martínez-Lema , M. Martínez-Vara , M. Sorel , C. Adams , V. Alvarez , L. Arazi , I. J. Arnquist , C. D. R Azevedo , K. Bailey , F. Ballester , J. M. Benlloch-Rodríguez , F. I. G. M. Borges , N. Byrnes , S. Cárcel , J. V. Carrión , S. Cebrián , E. Church , C. A. N. Conde , T. Contreras , G. Díaz , J. Díaz , M. Diesburg , J. Escada , R. Esteve , R. Felkai , A. F. M. Fernandes , L. M. P. Fernandes , P. Ferrario , A. L. Ferreira , E. D. C. Freitas , J. Generowicz , S. Ghosh , A. Goldschmidt , J. J. Gómez-Cadenas , D. González-Díaz , R. Guenette , R. M. Gutiérrez , J. Haefner , K. Hafidi , J. Hauptman , C. A. O. Henriques , J. A. Hernando Morata , P. Herrero , V. Herrero , Y. Ifergan , S. Johnston , B. J. P. Jones , M. Kekic , L. Labarga , A. Laing , P. Lebrun , N. López-March , M. Losada , R. D. P. Mano , J. Martín-Albo , A. Martínez , A. D. McDonald , F. Monrabal , C. M. B. Monteiro , F. J. Mora , J. Muñoz Vidal , P. Novella , D. R. Nygren , B. Palmeiro , A. Para , J. Pérez , M. Querol , A. B. Redwine , J. Renner , J. Repond , S. Riordan , L. Ripoll , Y. Rodríguez García , J. Rodríguez , L. Rogers , B. Romeo , C. Romo-Luque , F. P. Santos , J. M. F. dos Santos , A. Simón , C. Sofka , T. Stiegler , J. F. Toledo , J. Torrent , A. Usón , J. F. C. A. Veloso , R. Webb , R. Weiss-Babai , J. T. White , K. Woodruff , N. Yahlali

Results of the NEMO-3 Double Beta Decay Experiment

The NEMO-3 experiment is searching for neutrinoless double beta decay for 2 main isotopes (100Mo and 82Se) and is studying the two-neutrino double beta decay of seven isotopes. The experiment has been taking data since 2003 and, up to the…

High Energy Physics - Experiment · Physics 2019-08-14 Mathieu BONGRAND

Search for CPT and Lorentz Violation in B0-B0bar Oscillations with Dilepton Events

We report results of a search for CPT and Lorentz violation in B0-B0bar oscillations using inclusive dilepton events from 232 million Y(4S) --> BBbar decays recorded by the BABAR detector at the PEP-II B Factory at SLAC. We find 2.8sigma…

High Energy Physics - Experiment · Physics 2010-04-12 The BABAR Collaboration , B. Aubert