Search for charge non-conservation and Pauli exclusion principle violation with the MAJORANA DEMONSTRATOR

被引：2

作者：

Arnquist, I. J. ^{[1
]}

Avignone, F. T. ^{[2
,3
]}

Barabash, A. S. ^{[4
]}

Barton, C. J. ^{[5
,24
,25
]}

Bhimani, K. H. ^{[6
,7
]}

Blalock, E. ^{[7
,8
]}

Bos, B. ^{[6
,7
]}

Busch, M. ^{[7
,9
]}

Buuck, M. ^{[10
,11
]}

Caldwell, T. S. ^{[6
]}

Chan, Y-D. ^{[12
]}

Christofferson, C. D. ^{[13
]}

Chu, P. -H. ^{[14
]}

Clark, M. L. ^{[6
,7
]}

Cuesta, C. ^{[15
]}

Detwiler, J. A. ^{[10
,11
]}

Efremenko, Yu. ^{[3
,16
]}

Ejiri, H. ^{[17
]}

Elliott, S. R. ^{[14
]}

Giovanetti, G. K. ^{[18
]}

Green, M. P. ^{[3
,7
,8
]}

Gruszko, J. ^{[6
,7
]}

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

Guiseppe, V. E. ^{[3
]}

Haufe, C. R. ^{[6
,7
]}

Henning, R. ^{[6
,7
]}

Aguilar, D. Hervas ^{[6
,7
]}

Hoppe, E. W. ^{[1
]}

Hostiuc, A. ^{[10
,11
]}

Kidd, M. F. ^{[19
]}

Kim, I. ^{[14
,26
]}

Lannen V, R. T. ^{[2
]}

Lannen, I. E. ^{[2
]}

Li, A. ^{[6
,7
,27
]}

Lopez-Castano, J. M. ^{[3
]}

Martin, E. L. ^{[6
,7
,28
]}

Martin, R. D. ^{[20
]}

Massarczyk, R. ^{[14
]}

Meijer, S. J. ^{[14
]}

Oli, T. K. ^{[5
,29
]}

Paudel, L. S. ^{[5
]}

Pettus, W. ^{[21
,22
]}

Poon, A. W. P. ^{[12
]}

Radford, D. C. ^{[3
]}

Reine, A. L. ^{[6
,7
]}

Rielage, K. ^{[14
]}

Ruof, N. W. ^{[10
,11
,26
]}

Schaper, D. C. ^{[14
]}

Tedeschi, D. ^{[2
]}

Varner, R. L. ^{[3
]}

机构：

[1] Pacific Northwest Natl Lab, Richland, WA USA

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

[3] Oak Ridge Natl Lab, Oak Ridge, TN USA

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

[5] Univ South Dakota, Dept Phys, Vermillion, SD USA

[6] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC USA

[7] Triangle Univ Nucl Lab, Durham, NC USA

[8] North Carolina State Univ, Dept Phys, Raleigh, NC USA

[9] Duke Univ, Dept Phys, Durham, NC USA

[10] Univ Washington, Ctr Expt Nucl Phys & Astrophys, Seattle, WA 98195 USA

[11] Univ Washington, Dept Phys, Seattle, WA 98195 USA

[12] Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA USA

[13] South Dakota Mines, Rapid City, SD USA

[14] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[15] CIEMAT, Ctr Invest Energet Medioambientales & Tecnol, Madrid 28040, Spain

[16] Univ Tennessee, Dept Phys & Astron, Knoxville, TN USA

[17] Osaka Univ, Res Ctr Nucl Phys, Ibaraki, Japan

[18] Williams Coll, Phys Dept, Williamstown, MA USA

[19] Tennessee Technol Univ, Cookeville, TN USA

[20] Queens Univ, Dept Phys Engn Phys & Astron, Kingston, ON, Canada

[21] Indiana Univ, IU Ctr Explorat Energy & Matter, Bloomington, IN USA

[22] Indiana Univ, Dept Phys, Bloomington, IN USA

[23] Joint Inst Nucl Res Dubna, Dubna, Russia

[24] Roma Tre Univ, Rome, Italy

[25] INFN Roma Tre, Rome, Italy

[26] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[27] Univ Calif San Diego, La Jolla, CA USA

[28] Duke Univ, Durham, NC USA

[29] Argonne Natl Lab, Lemont, IL USA

[30] CALTECH, Jet Prop Lab, Pasadena, CA USA

来源：

NATURE PHYSICS | 2024年 / 20卷 / 07期

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会; 加拿大创新基金会;

关键词：

TRANSITIONS; DECAY; LIMITS; FERMI;

D O I：

10.1038/s41567-024-02437-9

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Charge conservation and the Pauli exclusion principle result from fundamental symmetries in the standard model of particle physics, and are typically taken as axiomatic. High-precision tests for small violations of these symmetries could point to new physics. Here we consider three models for violation of these processes, which would produce detectable ionization in the high-purity germanium detectors of the MAJORANA DEMONSTRATOR experiment. Using a 37.5 kg yr exposure, we report a lower limit on the electron mean lifetime, improving the previous best limit for the e ->nu(e)nu(e)(sic)nu(e) decay channel by more than an order of magnitude. We also present searches for two types of violation of the Pauli exclusion principle, setting limits on the probability of an electron to be found in a symmetric quantum state.

引用

页码：1078 / 1083

页数：10

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