Search for a Sub-eV Sterile Neutrino using Daya Bay's Full Dataset

被引：2

作者：

An, F. P. ^{[1
]}

Bai, W. D. ^{[1
]}

Balantekin, A. B. ^{[2
]}

Bishai, M. ^{[3
]}

Blyth, S. ^{[4
]}

Cao, G. F. ^{[5
]}

Cao, J. ^{[5
,6
]}

Chang, J. F. ^{[5
]}

Chang, Y. ^{[7
,9
]}

Chen, H. S. ^{[5
]}

Chen, H. Y. ^{[8
]}

Chen, S. M. ^{[8
]}

Chen, Y. X. ^{[10
]}

Chen, Z. Y. ^{[5
,6
]}

Cheng, J. ^{[10
]}

Cheng, Y. -C. ^{[4
]}

Cheng, Z. K. ^{[1
]}

Cherwinka, J. J. ^{[2
]}

Chu, M. C. ^{[11
]}

Dalager, O. ^{[13
]}

Cummings, J. P. ^{[12
]}

Deng, F. S. ^{[14
]}

Ding, X. Y. ^{[15
]}

Ding, Y. Y. ^{[5
]}

Diwan, M., V ^{[3
]}

Dohnal, T. ^{[16
]}

Dolzhikov, D. ^{[17
]}

Dove, J. ^{[18
]}

Dugas, K., V ^{[13
]}

Duyang, H. Y. ^{[15
]}

Dwyer, D. A. ^{[19
]}

Gallo, J. P. ^{[20
]}

Gonchar, M. ^{[17
]}

Gong, G. H. ^{[8
,18
]}

Gong, H. ^{[8
]}

Gu, W. Q. ^{[3
]}

Guo, J. Y. ^{[1
]}

Guo, L. ^{[8
]}

Guo, X. H. ^{[21
]}

Guo, Y. H. ^{[22
]}

Guo, Z. ^{[8
]}

Hackenburg, R. W. ^{[3
]}

Han, Y. ^{[1
]}

Hans, S. ^{[3
,44
]}

He, M. ^{[5
]}

Heeger, K. M. ^{[23
]}

Heng, Y. K. ^{[5
]}

Hor, Y. K. ^{[1
]}

Hsiung, Y. B. ^{[4
]}

Hu, B. Z. ^{[4
]}

机构：

[1] Sun Yat Sen Zhongshan Univ, Guangzhou, Peoples R China

[2] Univ Wisconsin, Madison, WI 53706 USA

[3] Brookhaven Natl Lab, Upton, NY 11973 USA

[4] Natl Taiwan Univ, Dept Phys, Taipei, Taiwan

[5] Inst High Energy Phys, Beijing, Peoples R China

[6] Inst High Energy Phys, New Cornerstone Sci Lab, Beijing, Peoples R China

[7] Natl United Univ, Miao Li City, Taiwan

[8] Tsinghua Univ, Dept Engn Phys, Beijing, Peoples R China

[9] Shenzhen Univ, Shenzhen, Peoples R China

[10] North China Elect Power Univ, Beijing, Peoples R China

[11] Chinese Univ Hong Kong, Hong Kong, Peoples R China

[12] Siena Coll, Loudonville, NY 12211 USA

[13] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[14] Univ Sci & Technol China, Hefei, Peoples R China

[15] Shandong Univ, Jinan, Peoples R China

[16] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic

[17] Joint Inst Nucl Res, Dubna, Moscow, Russia

[18] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

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

[20] IIT, Dept Phys, Chicago, IL 60616 USA

[21] Beijing Normal Univ, Beijing, Peoples R China

[22] Xianan Jiaotong Univ, Sch Energy & Power Engn, Dept Nucl Sci & Technol, Xian, Peoples R China

[23] Yale Univ, Wright Lab, New Haven, CT 06520 USA

[24] China Inst Atom Energy, Beijing, Peoples R China

[25] Guangxi Univ, 100 Daxue East Rd, Nanning, Peoples R China

[26] Virginia Tech, Ctr Neutrino Phys, Blacksburg, VA 24061 USA

[27] Natl Chiao Tung Univ, Inst Phys, Hsinchu, Taiwan

[28] Univ Cincinnati, Dept Phys, Cincinnati, OH 45221 USA

[29] Temple Univ, Coll Sci & Technol, Dept Phys, Philadelphia, PA 19122 USA

[30] Dongguan Univ Technol, Dongguan, Peoples R China

[31] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[32] Univ Hong Kong, Dept Phys, Hong Kong, Peoples R China

[33] Nanjing Univ, Nanjing, Peoples R China

[34] Nankai Univ, Sch Phys, Tianjin, Peoples R China

[35] Shanghai Jiao Tong Univ, Shanghai Lab Particle Phys & Cosmol, Dept Phys & Astron, Shanghai, Peoples R China

[36] Princeton Univ, Joseph Henry Labs, Princeton, NJ 08544 USA

[37] Hong Kong Univ Sci & Technol, Clear Water Bay, Hong Kong, Peoples R China

[38] CALTECH, Pasadena, CA 91125 USA

[39] Coll William & Mary, Williamsburg, VA 23187 USA

[40] China Gen Nucl Power Grp, Shenzhen, Peoples R China

[41] Natl Univ Def Technol, Coll Elect Sci & Engn, Changsha, Peoples R China

[42] Iowa State Univ, Ames, IA 50011 USA

[43] Chongqing Univ, Chongqing, Peoples R China

[44] CUNY Bronx Community Coll, Dept Chem & Chem Technol, Bronx, NY 10453 USA

[45] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA

[46] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA

来源：

PHYSICAL REVIEW LETTERS | 2024年 / 133卷 / 05期

基金：

中国国家自然科学基金; 美国国家科学基金会;

关键词：

REACTOR;

D O I：

10.1103/PhysRevLett.133.051801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This Letter presents results of a search for the mixing of a sub-eV sterile neutrino with three active neutrinos based on the full data sample of the Daya Bay Reactor Neutrino Experiment, collected during 3158 days of detector operation, which contains 5.55 . 55 x 106 6 reactor v<overline>e e candidates identified as inverse beta- decay interactions followed by neutron capture on gadolinium. The analysis benefits from a doubling of the statistics of our previous result and from improvements of several important systematic uncertainties. No significant oscillation due to mixing of a sub-eV sterile neutrino with active neutrinos was found. Exclusion limits are set by both Feldman-Cousins and CLs methods. Light sterile neutrino mixing with sin 2 28 14 greater than or similar to 0.01 . 01 can be excluded at 95% confidence level in the region of 0.01 . 01 eV2 2 less than or similar to j Delta m241j less than or similar to 0.1 m 2 41 j less than or similar to 0 . 1 eV2. 2 . This result represents the world-leading constraints in the region of 2 x 10-4 - 4 eV2 2 less than or similar to j Delta m241j less than or similar to 0.2 m 2 41 j less than or similar to 0 . 2 eV2. 2 .

引用

页数：7

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