New Limit for Neutrinoless Double-Beta Decay of 100Mo from the CUPID-Mo Experiment

被引：72

作者：

Armengaud, E. ^{[1
]}

Augier, C. ^{[2
]}

Barabash, A. S. ^{[3
]}

Bellini, F. ^{[4
,5
]}

Benato, G. ^{[6
]}

Benoit, A. ^{[7
]}

Beretta, M. ^{[8
]}

Berge, L. ^{[9
]}

Billard, J. ^{[2
]}

Borovlev, Yu A. ^{[10
]}

Bourgeois, Ch ^{[9
]}

Brudanin, V. B. ^{[11
]}

Camus, P. ^{[7
]}

Cardani, L. ^{[5
]}

Casali, N. ^{[5
]}

Cazes, A. ^{[2
]}

Chapellier, M. ^{[9
]}

Charlieux, F. ^{[2
]}

Chiesa, D. ^{[12
,13
]}

de Combarieu, M. ^{[14
]}

Dafinei, I ^{[5
]}

Danevich, F. A. ^{[15
]}

De Jesus, M. ^{[2
]}

Dixon, T. ^{[8
]}

Dumoulin, L. ^{[9
]}

Eitel, K. ^{[16
]}

Ferri, F. ^{[1
]}

Fujikawa, B. K. ^{[17
]}

Gascon, J. ^{[2
]}

Gironi, L. ^{[12
,13
]}

Giuliani, A. ^{[9
]}

Grigorieva, V. D. ^{[10
]}

Gros, M. ^{[1
]}

Guerard, E. ^{[9
]}

Helis, D. L. ^{[1
]}

Huang, H. Z. ^{[18
]}

Huang, R. ^{[8
]}

Johnston, J. ^{[19
]}

Juillard, A. ^{[2
]}

Khalife, H. ^{[9
]}

Kleifges, M. ^{[20
]}

Kobychev, V. V. ^{[15
]}

Kolomensky, Yu G. ^{[8
,17
]}

Konovalov, S., I ^{[3
]}

Leder, A. ^{[19
]}

Loaiza, P. ^{[9
]}

Ma, L. ^{[18
]}

Makarov, E. P. ^{[10
]}

de Marcillac, P. ^{[9
]}

Mariam, R. ^{[9
]}

机构：

[1] Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France

[2] Univ Lyon, Univ Lyon 1, CNRS IN2P3, IP2I Lyon, F-69622 Villeurbanne, France

[3] Natl Res Ctr, Kurchatov Inst, Inst Theoret & Expt Phys, Moscow 117218, Russia

[4] Sapienza Univ Roma, Dipartimento Fis, Piazzale Aldo Moro 2, I-00185 Rome, Italy

[5] Ist Nazl Fis Nucl, Sez Roma, Piazzale Aldo Moro 2, I-00185 Rome, Italy

[6] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, I-67100 Assergi, AQ, Italy

[7] CNRS Neel, F-38042 Grenoble 9, France

[8] Univ Calif Berkeley, Berkeley, CA 94720 USA

[9] Univ Paris Saclay, IJCLab, CNRS IN2P3, F-91405 Orsay, France

[10] Nikolaev Inst Inorgan Chem, Novosibirsk 630090, Russia

[11] JINR, Lab Nucl Problems, Dubna 141980, Moscow Region, Russia

[12] Univ Milano Bicocca, Dipartimento Fis, I-20126 Milan, Italy

[13] Ist Nazl Fis Nucl, Sez Milano Bicocca, I-20126 Milan, Italy

[14] Univ Paris Saclay, CEA, IRAMIS, F-91191 Gif Sur Yvette, France

[15] NASU, Inst Nucl Res, UA-03028 Kiev, Ukraine

[16] Karlsruhe Inst Technol, Inst Astroparticle Phys, D-76021 Karlsruhe, Germany

[17] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[18] Fudan Univ, Key Lab Nucl Phys & Ion Beam Applicat MOE, Shanghai 200433, Peoples R China

[19] MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[20] Karlsruhe Inst Technol, Inst Data Proc & Elect, D-76021 Karlsruhe, Germany

[21] Ist Nazl Fis Nucl, Gran Sasso Sci Inst, I-67100 Laquila, Italy

[22] Tech Univ Munich, Phys Dept, D-85748 Garching, Germany

[23] Univ Sci & Technol China, Dept Modern Phys, Hefei 230027, Peoples R China

[24] Lab Souterrain Modane, F-73500 Modane, France

[25] Univ South Carolina, Dept Phys & Astron, Columbia, SC 29208 USA

[26] Univ Grenoble Alpes, SIMAP, Grenoble INP, CNRS, F-38402 St Martin Dheres, France

[27] Northwestern Univ, Evanston, IL 60208 USA

来源：

PHYSICAL REVIEW LETTERS | 2021年 / 126卷 / 18期

基金：

新加坡国家研究基金会; 俄罗斯科学基金会; 美国国家科学基金会;

关键词：

THICK TARGETS; BREMSSTRAHLUNG; SENSITIVITY; SIMULATION; VALUES; MASS;

D O I：

10.1103/PhysRevLett.126.181802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The CUPID-Mo experiment at the Laboratoire Souterrain de Modane (France) is a demonstrator for CUPID, the next-generation ton-scale bolometric 0 nu beta beta experiment. It consists of a 4.2 kg array of 20 enriched (Li2MoO4)-Mo-100 scintillating bolometers to search for the lepton-number-violating process of 0 nu beta beta decay in Mo-100. With more than one year of operation (Mo-100 exposure of 1.17 kg x yr for physics data), no event in the region of interest and, hence, no evidence for 0 nu beta beta is observed. We report a new limit on the half-life of 0 nu beta beta decay in Mo-100 of T-1/2 > 1.5 x 10(24) yr at 90% C.I. The limit corresponds to an effective Majorana neutrino mass < m(beta beta)> < (0.31-0.54) eV, dependent on the nuclear matrix element in the light Majorana neutrino exchange interpretation.

引用

页数：7

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