Study of the wave packet treatment of neutrino oscillation at Daya Bay

被引：37

作者：

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

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

Band, H. R. ^{[3
]}

Bishai, M. ^{[4
]}

Blyth, S. ^{[5
,6
]}

Cao, D. ^{[7
]}

Cao, G. F. ^{[8
]}

Cao, J. ^{[8
]}

Cen, W. R. ^{[8
]}

Chan, Y. L. ^{[9
]}

Chang, J. F. ^{[8
]}

Chang, L. C. ^{[10
]}

Chang, Y. ^{[6
]}

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

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

Chen, S. M. ^{[12
]}

Chen, Y. X. ^{[13
]}

Chen, Y. ^{[14
]}

Cheng, J. -H. ^{[10
]}

Cheng, J. ^{[11
]}

Cheng, Y. P. ^{[8
]}

Cheng, Z. K. ^{[15
]}

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

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

Chukanov, A. ^{[16
]}

Cummings, J. P. ^{[17
]}

de Arcos, J. ^{[18
]}

Deng, Z. Y. ^{[8
]}

Ding, X. F. ^{[8
]}

Ding, Y. Y. ^{[8
]}

Diwan, M. V. ^{[4
]}

Dolgareva, M. ^{[16
]}

Dove, J. ^{[19
]}

Dwyer, D. A. ^{[20
]}

Edwards, W. R. ^{[20
]}

Gill, R. ^{[4
]}

Gonchar, M. ^{[16
]}

Gong, G. H. ^{[12
]}

Gong, H. ^{[12
]}

Grassi, M. ^{[8
]}

Gu, W. Q. ^{[21
]}

Guan, M. Y. ^{[8
]}

Guo, L. ^{[12
]}

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

Guo, Z. ^{[12
]}

Hackenburg, R. W. ^{[4
]}

Han, R. ^{[13
]}

Hans, S. ^{[4
,23
]}

He, M. ^{[8
]}

Heeger, K. M. ^{[3
]}

机构：

[1] East China Univ Sci & Technol, Inst Modern Phys, Shanghai, Peoples R China

[2] Univ Wisconsin, Madison, WI 53706 USA

[3] Yale Univ, Dept Phys, New Haven, CT 06520 USA

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

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

[6] Natl United Univ, Miaoli, Taiwan

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

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

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

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

[11] Shandong Univ, Jinan, Shandong, Peoples R China

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

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

[14] Shenzhen Univ, Shenzhen, Peoples R China

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

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

[17] Siena Coll, Loudonville, NY 12211 USA

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

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

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

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

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

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

[24] Chongqing Univ, Chongqing, Peoples R China

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

[26] Univ Houston, Dept Phys, Houston, TX 77204 USA

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

[28] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Dept Nucl Sci & Technol, Xian, Shaanxi, Peoples R China

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

[30] Univ Sci & Technol China, Hefei, Anhui, Peoples R China

来源：

EUROPEAN PHYSICAL JOURNAL C | 2017年 / 77卷 / 09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：

LONG-BASE-LINE; REACTOR; COHERENCE; DECOHERENCE; DETECTOR; SEARCH; SYSTEM; FLUX;

D O I：

10.1140/epjc/s10052-017-4970-y

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The disappearance of reactor (v) over bar (e) observed by the Daya Bay experiment is examined in the framework of a model in which the neutrino is described by a wave packet with a relative intrinsic momentum dispersion sigma(rel). Three pairs of nuclear reactors and eight antineutrino detectors, each with good energy resolution, distributed among three experimental halls, supply a high-statistics sample of (v) over bar (e) acquired at nine different baselines. This provides a unique platform to test the effects which arise from the wave packet treatment of neutrino oscillation. The modified survival probability formula was used to fit Daya Bay data, providing the first experimental limits: 2.38 x 10(-1)7 < sigma(rel) < 0.23. Treating the dimensions of the reactor cores and detectors as constraints, the limits are improved: 10-(14) less than or similar to sigma(rel) < 0.23, and an upper limit of sigma(rel) < 0.20 (which corresponds to sigma(x) greater than or similar to 10(-11) cm) is obtained. All limits correspond to a 95% C. L. Furthermore, the effect due to the wave packet nature of neutrino oscillation is found to be insignificant for reactor antineutrinos detected by the Daya Bay experiment thus ensuring an unbiased measurement of the oscillation parameters sin(2) 2 theta(13) and Delta m(32)(2) within the plane wave model.

引用

页数：14

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