Improved measurement of the reactor antineutrino flux and spectrum at Daya Bay

F. P. An; et al(Daya Bay Collaboration)

doi:10.1088/1674-1137/41/1/013002

Chinese Physics C> 2017, Vol. 41> Issue(1) : 013002 DOI: 10.1088/1674-1137/41/1/013002

Improved measurement of the reactor antineutrino flux and spectrum at Daya Bay

Abstract
HTML
Reference
Related

PDF

Abstract：
A new measurement of the reactor antineutrino flux and energy spectrum by the Daya Bay reactor neutrino experiment is reported. The antineutrinos were generated by six 2.9 GW_th nuclear reactors and detected by eight antineutrino detectors deployed in two near (560 m and 600 m flux-weighted baselines) and one far (1640 m flux-weighted baseline) underground experimental halls. With 621 days of data, more than 1.2 million inverse beta decay (IBD) candidates were detected. The IBD yield in the eight detectors was measured, and the ratio of measured to predicted flux was found to be 0:946±0:020 (0:992±0:021) for the Huber+Mueller (ILL+Vogel) model. A 2.9σ deviation was found in the measured IBD positron energy spectrum compared to the predictions. In particular, an excess of events in the region of 4-6 MeV was found in the measured spectrum, with a local signi cance of 4.4σ. A reactor antineutrino spectrum weighted by the IBD cross section is extracted for model-independent predictions.
- antineutrino flux ,
- energy spectrum ,
- reactor ,
- Daya Bay

References

[1]	C. L. Cowan, F. Reines, F. B. Harrison, H. W. Kruse, and A. D. McGuire, Science 124, 103 (1956)
[2]	K. Olive et al. (Particle Data Group), Chin. Phys. C38, 090001 (2014)
[3]	M. Apollonio et al. (CHOOZ), Phys. Lett. B420, 397 (1998), arXiv:hep-ex/9711002[hep-ex]
[4]	M. Apollonio et al. (CHOOZ), Eur. Phys. J. C27, 331 (2003), arXiv:hep-ex/0301017[hep-ex]
[5]	F. Boehm et al., Phys. Rev. Lett. 84, 3764 (2000), arXiv:hep-ex/9912050[hep-ex]
[6]	K. Eguchi et al., Phys.Rev.Lett. 90, 021802 (2003)
[7]	F. P. An et al. (Daya Bay Collaboration), Phys.Rev.Lett. 108, 171803 (2012)
[8]	K. Abe et al. (T2K Collaboration), Phys. Rev. D 88, 032002 (2013)
[9]	P. Adamson et al. (MINOS Collaboration), Phys. Rev. Lett. 110, 171801 (2013)
[10]	Y. Abe et al. (Double Chooz), Phys. Rev. Lett. 108, 131801 (2012), arXiv:1112.6353[hep-ex]
[11]	J. K. Ahn et al. (RENO), Phys. Rev. Lett. 108, 191802 (2012), arXiv:1204.0626[hep-ex]
[12]	F. An et al. (JUNO), (2015), arXiv:1507.05613[physics.ins-det]
[13]	S.-B. Kim, Proceedings, Neutrino Oscillation Workshop (NOW 2014), Nucl. Part. Phys. Proc. 265-266, 93 (2015), arXiv:1412.2199[hep-ex].
[14]	J. Ashenfelter et al. (PROSPECT), in Community Summer Study 2013:Snowmass on the Mississippi (CSS2013) Minneapolis, MN, USA, July 29-August 6, 2013 (2013) arXiv:1309.7647[physics.ins-det]
[15]	C. Lane et al., (2015), arXiv:1501.06935[physics.ins-det]
[16]	N. Ryder, The Solid Experiment, AAP 2014, Paris, France (2014)
[17]	M. Pequignot, The STEREO Experiment, AAP 2014, Paris, France (2014)
[18]	P. Vogel, L.Wen, and C. Zhang, (2015), 10.1038/ncomm-s7935, arXiv:1503.01059[hep-ex]
[19]	K. Schreckenbach, G. Colvin, W. Gelletly, and F. Von Feil-itzsch, Phys.Lett. B160, 325 (1985)
[20]	F. Von Feilitzsch, A. A. Hahn, and K. Schreckenbach, Phys. Lett. B118, 162 (1982)
[21]	A. A. Hahn et al, Phys.Lett. B218, 365 (1989)
[22]	P. Vogel, G. K. Schenter, F. M. Mann, and R. E. Schenter, Phys.Rev. C24, 1543 (1981)
[23]	C. Bemporad, G. Gratta, and P. Vogel, Rev. Mod. Phys. 74, 297 (2002)
[24]	T. A. Mueller et al., Phys. Rev. C83, 054615 (2011)
[25]	P. Huber, Phys.Rev. C84, 024617 (2011)
[26]	G. Mention et al., Phys.Rev. D83, 073006 (2011)
[27]	A. C. Hayes, et al., Phys. Rev. Lett. 112, 202501 (2014)
[28]	S.-H. Seo (RENO), Proceedings, 26th International Conference on Neutrino Physics and Astrophysics (Neutrino 2014), AIP Conf. Proc. 1666, 080002 (2015), arXiv:1410.7987[hep-ex]
[29]	F. P. An et al. (Daya Bay), Phys. Rev. Lett. 116, 061801 (2016), arXiv:1508.04233[hep-ex]
[30]	Y. Abe et al. (Double Chooz), JHEP 10, 086 (2014),[Erratum:JHEP02,074(2015)], arXiv:1406.7763[hep-ex]
[31]	F. Capozzi, E. Lisi, and A. Marrone, (2015), arXiv:1508.01392[hep-ph]
[32]	F. P. An et al. (Daya Bay), Phys. Rev. Lett. 115, 111802 (2015), arXiv:1505.03456[hep-ex]
[33]	F. P. An et al. (Daya Bay), Nucl. Instrum. Methods A811, 133 (2016), arXiv:1508.03943[physics.ins-det]
[34]	S. P. Tao, China Nuclear Science and Technology Report 00 (1995)
[35]	X. N. Song et al., Automation Panorama 19(6) (2002), 10.3969/j.issn.1003-0492.2002.06.014
[36]	Application of Ori ce Plates for Measurement of Feedwater Flow:EDF Plant Experience, Tech. Rep. (EPRI)
[37]	J. Cao, Nucl.Phys.B-Proceedings Supplements 229-232, 205 (2012), Neutrino 2010
[38]	C. R. Xu et al., Chinese Journal of Nuclear Science and Engineering 23, 26 (2003)
[39]	F. P. An et al. (Daya Bay Collaboration), Chin. Phys. C 37, 011001 (2013)
[40]	R. Sanchez et al., Nucl. Eng. Tech. 42, 474 (2010)
[41]	R. R. G. Marleau, A. Hebert, and R. Roy, Report IGE-236 (2001)
[42]	C. L. Jones, A. Bernstein, J. M. Conrad, C. ZDjurci, M. Fal-lot, L. Giot, G. Keefer, A. Onillon, and L. Winslow, Phys.Rev. D86, 012001 (2012)
[43]	X. B. Ma, F. Lu, L. Z. Wang, Y. X. Chen, W. L. Zhong, and F. P. An, (2015), arXiv:1405.6807[nucl-ex]
[44]	D. A. Dwyer and T. J. Langford, Phys.Rev.Lett. 114, 012502 (2015)
[45]	N. Haag et al., Phys. Rev. Lett. 112, 122501 (2014)
[46]	V. Kopeikin, L. Mikaelyan, and V. Sinev, Phys.Atom.Nucl. 67, 1892 (2004)
[47]	X. B. Ma et al., Phys.Rev. C88, 014605 (2013)
[48]	P. Vogel and J. F. Beacom, Phys.Rev. D60, 053003 (1999)
[49]	F. P. An, X. C. Tian, L. Zhan, and J. Cao, Chin.Phys. C33, 711 (2009)
[50]	B. Zhou et al., Chin.Phys. C36, 1 (2012)
[51]	P. Huber and P. Ja ke, Phys. Rev. Lett. 116, 122503 (2016), arXiv:1510.08948[hep-ph]
[52]	J. Liu et al., Nucl. Instrum. Meth. A750, 19 (2014), arXiv:1305.2248[physics.ins-det]
[53]	F. P. An et al. (Daya Bay Collaboration), Nucl.Instrum.Meth. A685, 78 (2012)
[54]	S. Agostinelli, et al. (GEANT4 Collaboration), Nucl. Instrum. Meth. A506, 250 (2003)
[55]	H. X. Huang et al., JINST 8, P09013 (2013)
[56]	W. Q. Gu, G. F. Cao, X. H. Chen, X. P. Ji, G. S. Li, J. J. Ling, J. Liu, X. Qian, and W.Wang, (2015), arXiv:1512.00295[physics.ins-det]
[57]	L. Groshev et al., Nuclear Data Tables 5 (1968)
[58]	C. Zhang, X. Qian, and P. Vogel, Phys.Rev. D87, 073018 (2013)
[59]	M. Apollonio et al., Phys.Lett. B466, 415 (1999)
[60]	F. Boehm et al., Phys.Rev. D64, 112001 (2001)
[61]	F. P. An et al. (Daya Bay Collaboration), Phys.Rev.Lett. 112, 061801 (2014)
[62]	G. Dietze and H. Klein, Nucl. Instrum. Methods, 193, 549 (1982)
[63]	A. A. Sonzogni, T. D. Johnson, and E. A. McCutchan, Phys. Rev. C 91, 011301 (2015)
[64]	A. Hocker and V. Kartvelishvili, Nucl. Instrum. Methods, A372, 469 (1996)
[65]	V. Blobel, Unfolding-Linear Inverse Problems, Notes for the Terrascale workshop at DESY May 2010,
[66]	T. Adye, Proceedings of the PHYSTAT 2011 Workshop, CERN, Geneva, Switzerland, January 2011, CERN-2011-006, pp 313-318, 313 (2011), arXiv:1105.1160[physics.data-an]
[67]	G. D'Agostini, Nucl.Instrum.Meth. A362, 487 (1995)

[1]	F. P. An , A. B. Balantekin , M. Bishai , S. Blyth , G. F. Cao , J. Cao , J. F. Chang , Y. Chang , H. S. Chen , S. M. Chen , Y. Chen , Y. X. Chen , J. Cheng , Z. K. Cheng , J. J. Cherwinka , M. C. Chu , J. P. Cummings , O. Dalager , F. S. Deng , Y. Y. Ding , M. V. Diwan , T. Dohnal , D. Dolzhikov , J. Dove , M. Dvořák , D. A. Dwyer , J. P. Gallo , M. Gonchar , G. H. Gong , H. Gong , M. Grassi , W. Q. Gu , J. Y. Guo , L. Guo , X. H. Guo , Y. H. Guo , Z. Guo , R. W. Hackenburg , S. Hans , M. He , K. M. Heeger , Y. K. Heng , Y. K. Hor , Y. B. Hsiung , B. Z. Hu , J. R. Hu , T. Hu , Z. J. Hu , H. X. Huang , J. H. Huang , X. T. Huang , Y. B. Huang , P. Huber , D. E. Jaffe , K. L. Jen , X. L. Ji , X. P. Ji , R. A. Johnson , D. Jones , L. Kang , S. H. Kettell , S. Kohn , M. Kramer , T. J. Langford , J. Lee , J. H. C. Lee , R. T. Lei , R. Leitner , J. K. C. Leung , F. Li , H. L. Li , J. J. Li , Q. J. Li , R. H. Li , S. Li , S. C. Li , W. D. Li , X. N. Li , X. Q. Li , Y. F. Li , Z. B. Li , H. Liang , C. J. Lin , G. L. Lin , S. Lin , J. J. Ling , J. M. Link , L. Littenberg , B. R. Littlejohn , J. C. Liu , J. L. Liu , J. X. Liu , C. Lu , H. Q. Lu , K. B. Luk , B. Z. Ma , X. B. Ma , X. Y. Ma , Y. Q. Ma , R. C. Mandujano , C. Marshall , K. T. McDonald , R. D. McKeown , Y. Meng , J. Napolitano , D. Naumov , E. Naumova , T. M. T. Nguyen , J. P. Ochoa-Ricoux , A. Olshevskiy , H.-R. Pan , J. Park , S. Patton , J. C. Peng , C. S. J. Pun , F. Z. Qi , M. Qi , X. Qian , N. Raper , J. Ren , C. Morales Reveco , R. Rosero , B. Roskovec , X. C. Ruan , H. Steiner , J. L. Sun , T. Tmej , K. Treskov , W.-H. Tse , C. E. Tull , B. Viren , V. Vorobel , C. H. Wang , J. Wang , M. Wang , N. Y. Wang , R. G. Wang , W. Wang , W. Wang , X. Wang , Y. Wang , Y. F. Wang , Z. Wang , Z. Wang , Z. M. Wang , H. Y. Wei , L. H. Wei , L. J. Wen , K. Whisnant , C. G. White , H. L. H. Wong , E. Worcester , D. R. Wu , F. L. Wu , Q. Wu , W. J. Wu , D. M. Xia , Z. Q. Xie , Z. Z. Xing , H. K. Xu , J. L. Xu , T. Xu , T. Xue , C. G. Yang , L. Yang , Y. Z. Yang , H. F. Yao , M. Ye , M. Yeh , B. L. Young , H. Z. Yu , Z. Y. Yu , B. B. Yue , V. Zavadskyi , S. Zeng , Y. Zeng , L. Zhan , C. Zhang , F. Y. Zhang , H. H. Zhang , J. W. Zhang , Q. M. Zhang , S. Q. Zhang , X. T. Zhang , Y. M. Zhang , Y. X. Zhang , Y. Y. Zhang , Z. J. Zhang , Z. P. Zhang , Z. Y. Zhang , J. Zhao , R. Z. Zhao , L. Zhou , H. L. Zhuang , J. H. Zou , (Daya Bay Collaboration) . Antineutrino energy spectrum unfolding based on the Daya Bay measurement and its applications. Chinese Physics C, 2021, 45(7): 073001. doi: 10.1088/1674-1137/abfc38
[2]	L. Q. Yin , S. S. Zhang , Z. Cao , B. Y. Bi , C. Wang , J. L. Liu , L. L. Ma , M. J. Yang , Tiina Suomijärvi , Y. Zhang , Z. Y. You , Z. Z. Zong , (for the LHAASO Collaboration) . Expected energy spectrum of cosmic ray protons and helium below 4 PeV measured by LHAASO. Chinese Physics C, 2019, 43(7): 075001. doi: 10.1088/1674-1137/43/7/075001
[3]	Hao-Jun Zhou , Yan-Peng Yin , Xiao-Qiang Fan , Zheng-Hong Li , Yi-Kang Pu . Measurements of effective delayed neutron fraction in a fast neutron reactor using the perturbation method. Chinese Physics C, 2016, 40(6): 068201. doi: 10.1088/1674-1137/40/6/068201
[4]	Mei-Juan Li , Xiao-Long Liu , Yun-Tao Liu , Geng-Fang Tian , Jian-Bo Gao , Zhou-Xiang Yu , Yu-Qing Li , Li-Qi Wu , Lin-Feng Yang , Kai Sun , Hong-Li Wang , J.R.Santisteban , Dong-Feng Chen . The neutron texture diffractometer at the China Advanced Research Reactor. Chinese Physics C, 2016, 40(3): 036002. doi: 10.1088/1674-1137/40/3/036002
[5]	Jian-Guo Qin , Cai-Feng Lai , Rong Liu , Tong-Hua Zhu , Xin-Wei Zhang , Bang-Jiao Ye . Monte Carlo simulation of prompt γ-ray spectra from depleted uranium under D-T neutron irradiation and electron recoil spectra in a liquid scintillator detector. Chinese Physics C, 2016, 40(3): 036201. doi: 10.1088/1674-1137/40/3/036201
[6]	Yu-feng Li , Yi-fang Wang , Zhi-zhong Xing . Terrestrial matter effects on reactor antineutrino oscillations at JUNO or RENO-50: how small is small?. Chinese Physics C, 2016, 40(9): 091001. doi: 10.1088/1674-1137/40/9/091001
[7]	WANG Jia-Jia , YE Mao , SHI Tan , CHANG Rui , QIAO Shan . Design of a high flux VUV beamline for low energy photons. Chinese Physics C, 2015, 39(4): 048001. doi: 10.1088/1674-1137/39/4/048001
[8]	ZHAO Yi , JIA Huan-Yu , ZHU Feng-Rong . Reconciling the light component and all-particle cosmicray energy spectra at the knee. Chinese Physics C, 2015, 39(12): 125001. doi: 10.1088/1674-1137/39/12/125001
[9]	LIU Ying-Biao , HE Miao , LIU Bei-Jiang , WANG Meng , MA Qiu-Mei , QI Fa-Zhi , ZENG Shan . Onsite data processing and monitoring for the Daya Bay experiment. Chinese Physics C, 2014, 38(8): 086001. doi: 10.1088/1674-1137/38/8/086001
[10]	YAN Wei-Hua , ZHANG Li-Guo , ZHANG Yan , ZHANG Zhao , XIAO Zhi-Gang . Monte Carlo studies on the burnup measurement for the high temperature gas cooling reactor. Chinese Physics C, 2013, 37(11): 116201. doi: 10.1088/1674-1137/37/11/116201
[11]	LIU Shu-Quan , cherl Thomas , LI Hang , ZOU Yu-Bin , LU Yuan-Rong , GUO Zhi-Yu . Corrections on energy spectrum and scatterings for fast neutron radiography at NECTAR facility. Chinese Physics C, 2013, 37(11): 118201. doi: 10.1088/1674-1137/37/11/118201
[12]	ZHANG Yi-Chun , CHEN Xiao-Su , HE Miao , HUANG Xing-Tao , WANG Meng , LI Wei-Dong , ZHANG Zi-Ping . Mixing MC events in reactor neutrino experiment. Chinese Physics C, 2013, 37(1): 016201. doi: 10.1088/1674-1137/37/1/016201
[13]	F. P. An et al. (Daya Bay collaboration) . Improved measurement of electron antineutrino disappearance at Daya Bay. Chinese Physics C, 2013, 37(1): 011001. doi: 10.1088/1674-1137/37/1/011001
[14]	XING Zhi-Zhong . Implications of the Daya Bay observation of θ₁₃ on the leptonic avor mixing structure and CP violation. Chinese Physics C, 2012, 36(4): 281-297. doi: 10.1088/1674-1137/36/4/L01
[15]	ren JETTER , Dan DWYER , JIANG Wen-Qi , LIU Da-Wei , WANG Yi-Fang , WANG Zhi-Min , WEN Liang-Jian . PMT waveform modeling at the Daya Bay experiment. Chinese Physics C, 2012, 36(8): 733-741. doi: 10.1088/1674-1137/36/8/009
[16]	ZHOU Bin , RUAN Xi-Chao , NIE Yang-Bo , ZHOU Zu-Ying , AN Feng-Peng , CAO Jun . A study of antineutrino spectra from spent nuclear fuel at Daya Bay. Chinese Physics C, 2012, 36(1): 1-5. doi: 10.1088/1674-1137/36/1/001
[17]	XU Ji-Lei , GUAN Meng-Yun , YANG Chang-Gen , WANG Yi-Fang , ZHANG Jia-Wen , LU Chang-Guo , Kirk McDonald , Robert Hackenburg , Kwong Lau , Logan Lebanowski , Cullen Newsom , Lin Shih-Kai , Jonathan Link , MA Lie-Hua , Viktor Pec , Vit Vorobel , CHEN Jin , LIU Jin-Chang , ZHOU Yong-Zhao , LIANG Hao . Design and preliminary test results of Daya Bay RPC modules. Chinese Physics C, 2011, 35(9): 844-850. doi: 10.1088/1674-1137/35/9/011
[18]	MA Lie-Hua , WANG Yi-Fang , ZHANG Jia-Wen , Logan Lebanowski , Viktor Pec , XU Guang-Hua , CHEN Jin , XIE Yu-Guang , HAN Ji-Feng , ZHANG Qing-Min , QIAN Sen , NING Zhe . Study of RPC gas composition using Daya Bay RPCs. Chinese Physics C, 2010, 34(8): 1116-1121. doi: 10.1088/1674-1137/34/8/015
[19]	CHEN Dong-Liang , LI Jin , MAO Ze-Pu , WONG T . Calculation of Reactor Antineutrino Spectra in TEXONO. Chinese Physics C, 2002, 26(9): 889-894.
[20]	Tang Chuanxiang , Lin Yuzheng , Wu Yuanming , Wang Youzhi , Zhao Xinqiao , Xie Jialin . Experimental Study of a Multi-Cavity RF Gun with Thermionic Cathode. Chinese Physics C, 1997, 21(S2): 91-95.

Access

Get Citation

F. P. An and et al(Daya Bay Collaboration). Improved measurement of the reactor antineutrino flux and spectrum at Daya Bay[J]. Chinese Physics C, 2017, 41(1): 013002. doi: 10.1088/1674-1137/41/1/013002

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2016-07-19
Revised: 2016-09-29

Fund

Supported in part by the Ministry of Science and Technology of China, the United States Department of Energy, the Chinese Academy of Sciences, the CAS Center for Excellence in Particle Physics, the National Natural Science Foundation of China, the Guangdong provincial government, the Shenzhen municipal government, the China General Nuclear Power Group, the Research Grants Council of the Hong Kong Special Administrative Region of China, the MOST and MOE in Taiwan, the U.S. National Science Foundation, the Ministry of Education, Youth and Sports of the Czech Republic, the Joint Institute of Nuclear Research in Dubna, Russia, the NSFC-RFBR joint research program, the National Commission for Scientific and Technological Research of Chile

Article Metric

Article Views(2406)
PDF Downloads(108)
Cited by(0)

Policy on re-use

To reuse of Open Access content published by CPC, for content published under the terms of the Creative Commons Attribution 3.0 license (“CC CY”), the users don’t need to request permission to copy, distribute and display the final published version of the article and to create derivative works, subject to appropriate attribution.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Improved measurement of the reactor antineutrino flux and spectrum at Daya Bay

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Improved measurement of the reactor antineutrino flux and spectrum at Daya Bay

HTML

目录