Observation of Electron-Antineutrino Disappearance at Daya Bay

被引：1789

作者：

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

Bai, J. Z. ^{[1
]}

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

Band, H. R. ^{[2
]}

Beavis, D. ^{[3
]}

Beriguete, W. ^{[3
]}

Bishai, M. ^{[3
]}

Blyth, S. ^{[4
]}

Boddy, K. ^{[5
]}

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

Cai, B. ^{[5
]}

Cao, G. F. ^{[1
]}

Cao, J. ^{[1
]}

Carr, R. ^{[5
]}

Chan, W. T. ^{[3
]}

Chang, J. F. ^{[1
]}

Chang, Y. ^{[4
]}

Chasman, C. ^{[3
]}

Chen, H. S. ^{[1
]}

Chen, H. Y. ^{[6
]}

Chen, S. J. ^{[7
]}

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

Chen, X. C. ^{[9
]}

Chen, X. H. ^{[1
]}

Chen, X. S. ^{[1
]}

Chen, Y. ^{[10
]}

Chen, Y. X. ^{[11
]}

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

Chu, M. C. ^{[9
]}

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

Deng, Z. Y. ^{[1
]}

Ding, Y. Y. ^{[1
]}

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

Dong, L. ^{[1
]}

Draeger, E. ^{[13
]}

Du, X. F. ^{[1
]}

Dwyer, D. A. ^{[5
]}

Edwards, W. R. ^{[14
]}

Ely, S. R. ^{[15
]}

Fang, S. D. ^{[7
]}

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

Fu, Z. W. ^{[7
]}

Ge, L. Q. ^{[16
]}

Ghazikhanian, V. ^{[17
]}

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

Goett, J. ^{[18
]}

Gonchar, M. ^{[19
]}

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

Gong, H. ^{[8
]}

Gornushkin, Y. A. ^{[19
]}

机构：

[1] Inst High Energy Phys, Beijing 100039, Peoples R China

[2] Univ Wisconsin, Madison, WI USA

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

[4] Natl United Univ, Miaoli, Taiwan

[5] CALTECH, Pasadena, CA 91125 USA

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

[7] Nanjing Univ, Nanjing, Jiangsu, Peoples R China

[8] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China

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

[10] Shenzhen Univ, Shen Zhen, Peoples R China

[11] N China Elect Power Univ, Beijing, Peoples R China

[12] Siena Coll, Loudonville, NY USA

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

[14] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[15] Univ Illinois, Dept Phys, Urbana, IL USA

[16] Chengdu Univ Technol, Chengdu, Peoples R China

[17] Univ Calif Los Angeles, Los Angeles, CA USA

[18] Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY USA

[19] Joint Inst Nucl Res, Dubna, Moscow Region, Russia

[20] Shanghai Jiao Tong Univ, Shanghai 200030, Peoples R China

[21] Beijing Normal Univ, Beijing 100875, Peoples R China

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

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

[24] Virginia Tech, Ctr Neutrino Phys, Blacksburg, VA USA

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

[26] Univ Houston, Dept Phys, Houston, TX USA

[27] Shandong Univ, Jinan 250100, Peoples R China

[28] Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China

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

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

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

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

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

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

[35] Univ Sci & Technol China, Hefei 230026, Peoples R China

[36] Coll William & Mary, Williamsburg, VA USA

[37] China Guangdong Nucl Power Grp, Shenzhen, Peoples R China

[38] Iowa State Univ, Ames, IA USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 17期

基金：

美国能源部; 美国国家科学基金会; 中国国家自然科学基金;

关键词：

LOADED LIQUID SCINTILLATOR; NEUTRON FISSION-PRODUCTS; REACTOR; SPECTRA; OSCILLATIONS; PU-239;

D O I：

10.1103/PhysRevLett.108.171803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Daya Bay Reactor Neutrino Experiment has measured a nonzero value for the neutrino mixing angle 0(13) with a significance of 5.2 standard deviations. Antineutrinos from six 2.9 GW(th) reactors were detected in six antineutrino detectors deployed in two near (flux-weighted baseline 470 m and 576 m) and one far (1648 m) underground experimental halls. With a 43 000 ton-GW(th)-day live-time exposure in 55 days, 10 416 (80 376) electron-antineutrino candidates were detected at the far hall (near halls). The ratio of the observed to expected number of antineutrinos at the far hall is R = 0.940 +/- 0.011(stat.) +/- 0.004(syst.). A rate-only analysis finds sin(2)2 theta(13) = 0.092 +/- 0.016(stat.) +/- 0.005(syst.) in a three-neutrino framework.

引用

页数：7

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