Related papers: First result from KamLAND-Zen : Double beta decay …

Measurement of the double-\beta decay half-life of ^{136}Xe with the KamLAND-Zen experiment

We present results from the KamLAND-Zen double-beta decay experiment based on an exposure of 77.6 days with 129 kg of $^{136}$Xe. The measured two-neutrino double-beta decay half-life of $^{136}$Xe is $T_{1/2}^{2\nu} = 2.38 \pm 0.02(stat)…

High Energy Physics - Experiment · Physics 2012-04-20 Zen Collaboration

Limit on Neutrinoless {\beta}{\beta} Decay of Xe-136 from the First Phase of KamLAND-Zen and Comparison with the Positive Claim in Ge-76

We present results from the first phase of the KamLAND-Zen double-beta decay experiment, corresponding to an exposure of 89.5 kg yr of Xe-136. We obtain a lower limit for the neutrinoless double-beta decay half-life of T_{1/2}^{0{\nu}} >…

High Energy Physics - Experiment · Physics 2013-02-27 Zen Collaboration

Results from KamLAND-Zen

KamLAND-Zen reports on a preliminary search for neutrinoless double-beta decay with ^{136}Xe based on 114.8 live-days after the purification of the xenon loaded liquid scintillator. In this data, the problematic ^{110m}Ag background peak…

Instrumentation and Detectors · Physics 2014-09-02 Zen Collaboration

Search for double-beta decay of 136Xe to excited states of 136Ba with the KamLAND-Zen experiment

A search for double-beta decays of 136Xe to excited states of 136Ba has been performed with the first phase data set of the KamLAND-Zen experiment. The 0+1, 2+1 and 2+2 transitions of 0{\nu}\{beta}\{beta} decay were evaluated in an exposure…

High Energy Physics - Experiment · Physics 2015-12-09 Zen Collaboration , K. Asakura , A. Gando , Y. Gando , T. Hachiya , S. Hayashida , H. Ikeda , K. Inoue , K. Ishidoshiro , T. Ishikawa , S. Ishio , M. Koga , S. Matsuda , T. Mitsui , D. Motoki , K. Nakamura , S. Obara , M. Otani , T. Oura , I. Shimizu , Y. Shirahata , J. Shirai , A. Suzuki , H. Tachibana , K. Tamae , K. Ueshima , H. Watanabe , B. D. Xu , H. Yoshida , A. Kozlov , Y. Takemoto , S. Yoshida , K. Fushimi , T. I. Banks , B. E. Berger , B. K. Fujikawa , T. O'Donnell , L. A. Winslow , Y. Efremenko , H. J. Karwowski , D. M. Markoff , W. Tornow , J. A. Detwiler , S. Enomoto , M. P. Decowski

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

Search for the Majorana Nature of Neutrinos in the Inverted Mass Ordering Region with KamLAND-Zen

The KamLAND-Zen experiment has provided stringent constraints on the neutrinoless double-beta ($0\nu\beta\beta$) decay half-life in $^{136}$Xe using a xenon-loaded liquid scintillator. We report an improved search using an upgraded detector…

High Energy Physics - Experiment · Physics 2023-02-17 Zen Collaboration , S. Abe , S. Asami , M. Eizuka , S. Futagi , A. Gando , Y. Gando , T. Gima , A. Goto , T. Hachiya , K. Hata , S. Hayashida , K. Hosokawa , K. Ichimura , S. Ieki , H. Ikeda , K. Inoue , K. Ishidoshiro , Y. Kamei , N. Kawada , Y. Kishimoto , M. Koga , M. Kurasawa , N. Maemura , T. Mitsui , H. Miyake , T. Nakahata , K. Nakamura , K. Nakamura , R. Nakamura , H. Ozaki , T. Sakai , H. Sambonsugi , I. Shimizu , J. Shirai , K. Shiraishi , A. Suzuki , Y. Suzuki , A. Takeuchi , K. Tamae , K. Ueshima , H. Watanabe , Y. Yoshida , S. Obara , A. K. Ichikawa , D. Chernyak , A. Kozlov , K. Z. Nakamura , S. Yoshida , Y. Takemoto , S. Umehara , K. Fushimi , K. Kotera , Y. Urano , B. E. Berger , B. K. Fujikawa , J. G. Learned , J. Maricic , S. N. Axani , J. Smolsky , Z. Fu , L. A. Winslow , Y. Efremenko , H. J. Karwowski , D. M. Markoff , W. Tornow , S. Dell'Oro , T. O'Donnell , J. A. Detwiler , S. Enomoto , M. P. Decowski , C. Grant , A. Li , H. Song

Search for Majorana Neutrinos near the Inverted Mass Hierarchy Region with KamLAND-Zen

We present an improved search for neutrinoless double-beta ($0\nu\beta\beta$) decay of $^{136}$Xe in the KamLAND-Zen experiment. Owing to purification of the xenon-loaded liquid scintillator, we achieved a significant reduction of the…

High Energy Physics - Experiment · Physics 2016-08-24 Zen Collaboration

Search for Majorana Neutrinos with the Complete KamLAND-Zen Dataset

We present a search for neutrinoless double-beta ($0\nu\beta\beta$) decay of $^{136}$Xe using the full \mbox{KamLAND-Zen 800} dataset with 745\,kg of enriched xenon, corresponding to an exposure of $2.1$\,ton\,yr of $^{136}$Xe. This updated…

High Energy Physics - Experiment · Physics 2026-03-24 S. Abe , T. Araki , K. Chiba , T. Eda , M. Eizuka , Y. Funahashi , A. Furuto , A. Gando , Y. Gando , S. Goto , T. Hachiya , K. Hata , K. Ichimura , S. Ieki , H. Ikeda , K. Inoue , K. Ishidoshiro , Y. Kamei , N. Kawada , Y. Kishimoto , M. Koga , A. Marthe , Y. Matsumoto , T. Mitsui , H. Miyake , D. Morita , R. Nakajima , K. Nakamura , R. Nakamura , R. Nakamura , J. Nakane , T. Ono , H. Ozaki , K. Saito , T. Sakai , I. Shimizu , J. Shirai , K. Shiraishi , A. Suzuki , K. Tachibana , K. Tamae , H. Watanabe , K. Watanabe , S. Yoshida , S. Umehara , K. Fushimi , K. Kotera , Y. Urano , B. E. Berger , B. K. Fujikawa , J. G. Learned , J. Maricic , Z. Fu , S. Ghosh , J. Smolsky , L. A. Winslow , Y. Efremenko , H. J. Karwowski , D. M. Markoff , W. Tornow , S. Dell'Oro , T. O'Donnell , J. A. Detwiler , S. Enomoto , M. P. Decowski , K. M. Weerman , C. Grant , O. Penek , H. Song , A. Li , S. N. Axani , M. Garcia , M. Sarfraz

Limits on Majoron-emitting double-beta decays of Xe-136 in the KamLAND-Zen experiment

We present limits on Majoron-emitting neutrinoless double-beta decay modes based on an exposure of 112.3 days with 125 kg of Xe-136. In particular, a lower limit on the ordinary (spectral index n = 1) Majoron-emitting decay half-life of…

High Energy Physics - Experiment · Physics 2012-08-27 Zen Collaboration , A. Gando , Y. Gando , H. Hanakago , H. Ikeda , K. Inoue , R. Kato , M. Koga , S. Matsuda , T. Mitsui , T. Nakada , K. Nakamura , A. Obata , A. Oki , Y. Ono , I. Shimizu , J. Shirai , A. Suzuki , Y. Takemoto , K. Tamae , K. Ueshima , H. Watanabe , B. D. Xu , S. Yamada , H. Yoshida , A. Kozlov , S. Yoshida , T. I. Banks , J. A. Detwiler , S. J. Freedman , B. K. Fujikawa , K. Han , T. O'Donnell , B. E. Berger , Y. Efremenko , H. J. Karwowski , D. M. Markoff , W. Tornow , S. Enomoto , M. P. Decowski

Search for Neutrinoless Double-Beta Decay in $^{136}$Xe with EXO-200

We report on a search for neutrinoless double-beta decay of $^{136}$Xe with EXO-200. No signal is observed for an exposure of 32.5 kg-yr, with a background of ~1.5 x 10^{-3} /(kg yr keV) in the $\pm 1\sigma$ region of interest. This sets a…

High Energy Physics - Experiment · Physics 2012-07-24 M. Auger , D. J. Auty , P. S. Barbeau , E. Beauchamp , V. Belov , C. Benitez-Medina , M. Breidenbach , T. Brunner , A. Burenkov , B. Cleveland , S. Cook , T. Daniels , M. Danilov , C. G. Davis , S. Delaquis , R. deVoe , A. Dobi , M. J. Dolinski , A. Dolgolenko , M. Dunford , W. Fairbank , J. Farine , W. Feldmeier , P. Fierlinger , D. Franco , G. Giroux , R. Gornea , K. Graham , G. Gratta , C. Hall , K. Hall , C. Hargrove , S. Herrin , M. Hughes , A. Johnson , T. N. Johnson , A. Karelin , L. J. Kaufman , A. Kuchenkov , K. S. Kumar , D. S. Leonard , F. Leonard , D. Mackay , R. MacLellan , M. Marino , B. Mong , M. Montero Diez , A. R. Muller , R. Neilson , R. Nelson , A. Odian , I. Ostrovskiy , K. O'Sullivan , C. Ouellet , A. Piepke , A. Pocar , C. Y. Prescott , K. Pushkin , P. C. Rowson , J. J. Russell , A. Sabourov , D. Sinclair , S. Slutsky , V. Stekhanov , T. Tolba , D. Tosi , K. Twelker , P. Vogel , J. -L. Vuilleumier , A. Waite , T. Walton , M. Weber , U. Wichoski , J. Wodin , J. D. Wright , L. Yang , Y. -R. Yen , O. Ya. Zeldovich

Searching for Neutrinoless Double-Beta Decay of $^{136}$Xe with PandaX-4T

We report the search for neutrinoless double-beta decay of $^{136}$Xe from the PandaX-4T experiment with a 3.7-tonne natural xenon target. The data reconstruction and the background modeling are optimized in the MeV energy region. A blind…

Nuclear Experiment · Physics 2025-12-05 PandaX Collaboration , Shu Zhang , Zihao Bo , Wei Chen , Xun Chen , Yunhua Chen , Zhaokan Cheng , Xiangyi Cui , Yingjie Fan , 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 , Jiafu Li , Mingchuan Li , Shuaijie Li , Tao Li , Zhiyuan Li , Qing Lin , Jianglai Liu , Congcong Lu , Xiaoying Lu , Lingyin Luo , 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 , Tao Zhang , Wei Zhang , Yang Zhang , Yingxin Zhang , Yuanyuan Zhang , Li Zhao , Jifang Zhou , Jiaxu Zhou , Jiayi Zhou , Ning Zhou , Xiaopeng Zhou , Yubo Zhou , Zhizhen Zhou

Constraining Neutrino Mass from Neutrinoless Double Beta Decay

We re-analyze the compatibility of the claimed observation of neutrinoless double beta decay ($0\nu\beta\beta$) in $^{76}$Ge with the new limits on the half-life of $^{136}$Xe from EXO-200 and KamLAND-Zen. Including recent calculations of…

High Energy Physics - Phenomenology · Physics 2013-11-27 P. S. Bhupal Dev , Srubabati Goswami , Manimala Mitra , Werner Rodejohann

Searches for Double Beta Decay of $^{134}$Xe with EXO-200

Searches for double beta decay of $^{134}$Xe were performed with EXO-200, a single-phase liquid xenon detector designed to search for neutrinoless double beta decay of $^{136}$Xe. Using an exposure of $29.6\text{ kg}\!\cdot\!\text{yr}$, the…

High Energy Physics - Experiment · Physics 2017-11-08 200 Collaboration , J. B. Albert , G. Anton , I. Badhrees , P. S. Barbeau , R. Bayerlein , D. Beck , V. Belov , M. Breidenbach , T. Brunner , G. F. Cao , W. R. Cen , C. Chambers , B. Cleveland , M. Coon , A. Craycraft , W. Cree , T. Daniels , M. Danilov , S. J. Daugherty , J. Daughhetee , J. Davis , S. Delaquis , A. Der Mesrobian-Kabakian , R. DeVoe , T. Didberidze , J. Dilling , A. Dolgolenko , M. J. Dolinski , W. Fairbank , J. Farine , S. Feyzbakhsh , P. Fierlinger , D. Fudenberg , R. Gornea , K. Graham , G. Gratta , C. Hall , J. Hoessl , P. Hufschmidt , M. Hughes , A. Jamil , M. J. Jewell , A. Johnson , S. Johnston , A. Karelin , L. J. Kaufman , T. Koffas , S. Kravitz , R. Krücken , A. Kuchenkov , K. S. Kumar , Y. Lan , D. S. Leonard , S. Li , C. Licciardi , Y. H. Lin , R. MacLellan , M. G. Marino , T. Michel , B. Mong , D. Moore , K. Murray , R. Nelson , O. Njoya , A. Odian , I. Ostrovskiy , A. Piepke , A. Pocar , F. Retière , P. C. Rowson , J. J. Russell , A. Schubert , D. Sinclair , E. Smith , V. Stekhanov , M. Tarka , T. Tolba , R. Tsang , P. Vogel , J. -L. Vuilleumier , M. Wagenpfeil , A. Waite , J. Walton , T. Walton , M. Weber , L. J. Wen , U. Wichoski , L. Yang , Y. -R. Yen , O. Ya. Zeldovich , J. Zettlemoyer , T. Ziegler

Measurement of the ${}^{136}$Xe two-neutrino double beta decay half-life via direct background subtraction in NEXT

We report a measurement of the half-life of the ${}^{136}$Xe two-neutrino double beta decay performed with a novel direct background subtraction technique. The analysis relies on the data collected with the NEXT-White detector operated with…

Nuclear Experiment · Physics 2022-05-12 NEXT Collaboration , P. Novella , M. Sorel , A. Usón , C. Adams , H. Almazán , V. Álvarez , B. Aparicio , A. I. Aranburu , L. Arazi , I. J. Arnquist , S. Ayet , C. D. R. Azevedo , K. Bailey , F. Ballester , J. M. Benlloch-Rodríguez , F. I. G. M. Borges , S. Bounasser , N. Byrnes , S. Cárcel , J. V. Carrión , S. Cebrián , E. Church , C. A. N. Conde , T. Contreras , F. P. Cossío , A. A. Denisenko , G. Díaz , J. Díaz , T. Dickel , J. Escada , R. Esteve , A. Fahs , R. Felkai , L. M. P. Fernandes , P. Ferrario , A. L. Ferreira , F. W. Foss , E. D. C. Freitas , Z. Freixa , J. Generowicz , A. Goldschmidt , J. J. Gómez-Cadenas , R. González , D. González-Díaz , R. Guenette , R. M. Gutiérrez , J. Haefner , K. Hafidi , J. Hauptman , C. A. O. Henriques , J. A. Hernando Morata , P. Herrero-Gómez , V. Herrero , J. Ho , Y. Ifergan , B. J. P. Jones , M. Kekic , L. Labarga , A. Laing , L. Larizgoitia , P. Lebrun , D. Lopez Gutierrez , N. López-March , M. Losada , R. D. P. Mano , J. Martín-Albo , A. Martínez , G. Martínez-Lema , M. Martínez-Vara , A. D. McDonald , Z. E. Meziani , K. Mistry , F. Monrabal , C. M. B. Monteiro , F. J. Mora , J. Muñoz Vidal , K. Navarro , D. R. Nygren , E. Oblak , M. Odriozola-Gimeno , B. Palmeiro , A. Para , J. Pérez , M. Querol , A. Raymond , A. B. Redwine , J. Renner , L. Ripoll , I. Rivilla , Y. Rodríguez García , J. Rodríguez , C. Rogero , L. Rogers , B. Romeo , C. Romo-Luque , F. P. Santos , J. M. F. dos Santos , A. Simón , C. Stanford , J. M. R. Teixeira , P. Thapa , J. F. Toledo , J. Torrent , J. F. C. A. Veloso , T. T. Vuong , R. Webb , J. T. White , K. Woodruff , N. Yahlali

NEMO 3 double beta decay experiment: latest results

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

Nuclear Experiment · Physics 2009-07-24 A. S. Barabash

Projected sensitivity of the LUX-ZEPLIN experiment to the $0\nu\beta\beta$ decay of $^{136}$Xe

The LUX-ZEPLIN (LZ) experiment will enable a neutrinoless double beta decay search in parallel to the main science goal of discovering dark matter particle interactions. We report the expected LZ sensitivity to $^{136}$Xe neutrinoless…

Nuclear Experiment · Physics 2020-07-15 D. S. Akerib , C. W. Akerlof , A. Alqahtani , S. K. Alsum , T. J. Anderson , N. Angelides , H. M. Araújo , J. E. Armstrong , M. Arthurs , X. Bai , J. Balajthy , S. Balashov , J. Bang , A. Baxter , J. Bensinger , E. P. Bernard , A. Bernstein , A. Bhatti , A. Biekert , T. P. Biesiadzinski , H. J. Birch , K. E. Boast , B. Boxer , P. Brás , J. H. Buckley , V. V. Bugaev , S. Burdin , J. K. Busenitz , R. Cabrita , C. Carels , D. L. Carlsmith , M. C. Carmona Benitez , M. Cascella , C. Chan , N. I. Chott , A. Cole , A. Cottle , J. E. Cutter , C. E. Dahl , L. de Viveiros , J. E. Y. Dobson , E. Druszkiewicz , T. K. Edberg , S. R. Eriksen , A. Fan , S. Fiorucci , H. Flaecher , E. D. Fraser , T. Fruth , R. J. Gaitskell , J. Genovesi , C. Ghag , E. Gibson , M. G. D. Gilchriese , S. Gokhale , M. G. D. van der Grinten , C. R. Hall , A. Harrison , S. J. Haselschwardt , S. A. Hertel , J. YK. Hor , M. Horn , D. Q. Huang , C. M. Ignarra , O. Jahangir , W. Ji , J. Johnson , A. C. Kaboth , A. C. Kamaha , K. Kamdin , K. Kazkaz , D. Khaitan , A. Khazov , I. Khurana , C. D. Kocher , L. Korley , E. V. Korolkova , J. Kras , H. Kraus , S. Kravitz , L. Kreczko , B. Krikler , V. A. Kudryavtsev , E. A. Leason , J. Lee , D. S. Leonard , K. T. Lesko , C. Levy , J. Li , J. Liao , F. T. Liao , J. Lin , A. Lindote , R. Linehan , W. H. Lippincott , R. Liu , X. Liu , C. Loniewski , M. I. Lopes , B. López Paredes , W. Lorenzon , S. Luitz , J. M. Lyle , P. A. Majewski , A. Manalaysay , L. Manenti , R. L. Mannino , N. Marangou , M. F. Marzioni , D. N. McKinsey , J. McLaughlin , Y. Meng , E. H. Miller , E. Mizrachi , A. Monte , M. E. Monzani , J. A. Morad , E. Morrison , B. J. Mount , A. St. J. Murphy , D. Naim , A. Naylor , C. Nedlik , C. Nehrkorn , H. N. Nelson , F. Neves , J. A. Nikoleyczik , A. Nilima , K. O'Sullivan , I. Olcina , K. C. Oliver-Mallory , S. Pal , K. J. Palladino , J. Palmer , N. Parveen , E. K. Pease , B. Penning , G. Pereira , K. Pushkin , J. Reichenbacher , C. A. Rhyne , Q. Riffard , G. R. C. Rischbieter , R. Rosero , P. Rossiter , G. Rutherford , D. Santone , A. B. M. R. Sazzad , R. W. Schnee , M. Schubnell , D. Seymour , S. Shaw , T. A. Shutt , J. J. Silk , C. Silva , R. Smith , M. Solmaz , V. N. Solovov , P. Sorensen , I. Stancu , A. Stevens , K. Stifter , T. J. Sumner , N. Swanson , M. Szydagis , M. Tan , W. C. Taylor , R. Taylor , D. J. Temples , P. A. Terman , D. R. Tiedt , M. Timalsina , A. Tomás , M. Tripathi , D. R. Tronstad , W. Turner , L. Tvrznikova , U. Utku , A. Vacheret , A. Vaitkus , J. J. Wang , W. Wang , J. R. Watson , R. C. Webb , R. G. White , T. J. Whitis , F. L. H. Wolfs , D. Woodward , X. Xiang , J. Xu , M. Yeh , P. Zarzhitsky

Measurement of the Double Beta Decay Half-life of 150-Nd and Search for Neutrinoless Decay Modes with the NEMO-3 Detector

The half-life for double beta decay of 150-Nd has been measured by the NEMO-3 experiment at the Modane Underground Laboratory. Using 924.7 days of data recorded with 36.55 g of 150-Nd the half-life for 2nubb decay is measured to be…

High Energy Physics - Experiment · Physics 2010-04-30 The NEMO Collaboration , J. Argyriades

Observation of Two-Neutrino Double-Beta Decay in Xe-136 with EXO-200

We report the observation of two-neutrino double-beta decay in Xe-136 with T_1/2 = 2.11 +- 0.04 (stat.) +- 0.21 (sys.) x 10^21 yr. This second order process, predicted by the Standard Model, has been observed for several nuclei but not for…

Nuclear Experiment · Physics 2011-11-24 N. Ackerman , B. Aharmim , M. Auger , D. J. Auty , P. S. Barbeau , K. Barry , L. Bartoszek , E. Beauchamp , V. Belov , C. Benitez-Medina , M. Breidenbach , A. Burenkov , B. Cleveland , R. Conley , E. Conti , J. Cook , S. Cook , A. Coppens , I. Counts , W. Craddock , T. Daniels , M. V. Danilov , C. G. Davis , J. Davis , R. deVoe , Z. Djurcic , A. Dobi , A. G. Dolgolenko , M. J. Dolinski , K. Donato , W. Fairbank , J. Farine , P. Fierlinger , D. Franco , D. Freytag , G. Giroux , R. Gornea , K. Graham , G. Gratta , M. P. Green , C. Hagemann , C. Hall , K. Hall , G. Haller , C. Hargrove , R. Herbst , S. Herrin , J. Hodgson , M. Hughes , A. Johnson , A. Karelin , L. J. Kaufman , T. Koffas , A. Kuchenkov , A. Kumar , K. S. Kumar , D. S. Leonard , F. Leonard , F. LePort , D. Mackay , R. MacLellan , M. Marino , Y. Martin , B. Mong , M. Montero Diez , P. Morgan , A. R. Muller , R. Neilson , R. Nelson , A. Odian , K. O'Sullivan , C. Ouellet , A. Piepke , A. Pocar , C. Y. Prescott , K. Pushkin , A. Rivas , E. Rollin , P. C. Rowson , J. J. Russell , A. Sabourov , D. Sinclair , K. Skarpaas , S. Slutsky , V. Stekhanov , V. Strickland , M. Swift , D. Tosi , K. Twelker , P. Vogel , J. -L. Vuilleumier , J. -M. Vuilleumier , A. Waite , S. Waldman , T. Walton , K. Wamba , M. Weber , U. Wichoski , J. Wodin , J. D. Wright , L. Yang , Y. -R. Yen , O. Ya. Zeldovich

Searching for $0\nu\beta\beta$ decay in $^{136}$Xe -- towards the tonne-scale and beyond

The quest for neutrinoless double-beta decay ($0\nu\beta\beta$) is a promising experimental approach to search for lepton number violation in weak interactions, a key ingredient in generating the matter-antimatter asymmetry through models…

High Energy Physics - Experiment · Physics 2017-04-06 Thomas Brunner , Lindley Winslow

Precision Analysis of the $^{136}$Xe Two-Neutrino $\beta\beta$ Spectrum in KamLAND-Zen and Its Impact on the Quenching of Nuclear Matrix Elements

We present a precision analysis of the $^{136}$Xe two-neutrino $\beta\beta$ electron spectrum above 0.8 MeV, based on high-statistics data obtained with the KamLAND-Zen experiment. An improved formalism for the two-neutrino $\beta\beta$…

High Energy Physics - Experiment · Physics 2019-05-16 Zen Collaboration