Improved Measurement of the Evolution of the Reactor Antineutrino Flux and Spectrum at Daya Bay

Reactor neutrino experiments play a crucial role in advancing our knowledge of neutrinos. In this Letter, the evolution of the flux and spectrum as a function of the reactor isotopic content is reported in terms of the inverse-beta-decay yield at Daya Bay with 1958 days of data and improved systemat...

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Published in:Physical review letters 2023-05, Vol.130 (21), p.211801-211801, Article 211801
Main Authors: Cao, G F, Chen, Y, Chen, Y X, Cheng, J, Cummings, J P, Dalager, O, Deng, F S, Ding, Y Y, Diwan, M V, Dolzhikov, D, Dove, J, Dwyer, D A, Gallo, J P, Gonchar, M, Gu, W Q, Guo, J Y, Guo, L, Guo, Y H, Hackenburg, R W, Han, Y, He, M, Hu, B Z, Hu, J R, Hu, Z J, Huang, Y B, Huber, P, Jaffe, D E, Jen, K L, Ji, X L, Jones, D, Langford, T J, Lee, J H C, Li, H L, Li, Q J, Li, S C, Li, W D, Li, X Q, Li, Z B, Lin, G L, Lin, S, Littenberg, L, Liu, J C, Liu, J L, Lu, C, Ma, X B, Ma, X Y, Mandujano, R C, Marshall, C, McDonald, K T, McKeown, R D, Meng, Y, Napolitano, J, Naumova, E, Nguyen, T M T, Patton, S, Peng, J C, Qi, M, Qian, X, Raper, N, Ren, J, Morales Reveco, C, Ruan, X C, Russell, B, Sun, J L, Treskov, K, Tse, W-H, Tull, C E, Tung, Y C, Viren, B, Vorobel, V, Wang, C H, Wang, J, Wang, M, Wang, N Y, Wang, Y, Wei, H Y, Wen, L J, Whisnant, K, Wong, H L H, Wu, Q, Xie, Z Q, Xu, J L, Yang, L, Yao, H F, Ye, M, Young, B L, Yu, H Z, Yu, Z Y, Yue, B B, Zavadskyi, V, Zeng, S, Zeng, Y, Zhang, C, Zhang, H H, Zhang, J W, Zhang, S Q, Zhang, Y M, Zhang, Z J, Zhou, L, Zou, J H
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Language:English
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High Energy Physics - Experiment
Nuclear Reactors
Physics
Uranium
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cited_by cdi_FETCH-LOGICAL-c420t-123e00e9c78b21a712a8f36033cd475fcce5c9f9b84753560e0002c83248863f3
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container_end_page 211801
container_issue 21
container_start_page 211801
container_title Physical review letters
container_volume 130
creator Cao, G F
Chen, Y
Chen, Y X
Cheng, J
Cummings, J P
Dalager, O
Deng, F S
Ding, Y Y
Diwan, M V
Dolzhikov, D
Dove, J
Dwyer, D A
Gallo, J P
Gonchar, M
Gu, W Q
Guo, J Y
Guo, L
Guo, Y H
Hackenburg, R W
Han, Y
He, M
Hu, B Z
Hu, J R
Hu, Z J
Huang, Y B
Huber, P
Jaffe, D E
Jen, K L
Ji, X L
Jones, D
Langford, T J
Lee, J H C
Li, H L
Li, Q J
Li, S C
Li, W D
Li, X Q
Li, Z B
Lin, G L
Lin, S
Littenberg, L
Liu, J C
Liu, J L
Lu, C
Ma, X B
Ma, X Y
Mandujano, R C
Marshall, C
McDonald, K T
McKeown, R D
Meng, Y
Napolitano, J
Naumova, E
Nguyen, T M T
Patton, S
Peng, J C
Qi, M
Qian, X
Raper, N
Ren, J
Morales Reveco, C
Ruan, X C
Russell, B
Sun, J L
Treskov, K
Tse, W-H
Tull, C E
Tung, Y C
Viren, B
Vorobel, V
Wang, C H
Wang, J
Wang, M
Wang, N Y
Wang, Y
Wei, H Y
Wen, L J
Whisnant, K
Wong, H L H
Wu, Q
Xie, Z Q
Xu, J L
Yang, L
Yao, H F
Ye, M
Young, B L
Yu, H Z
Yu, Z Y
Yue, B B
Zavadskyi, V
Zeng, S
Zeng, Y
Zhang, C
Zhang, H H
Zhang, J W
Zhang, S Q
Zhang, Y M
Zhang, Z J
Zhou, L
Zou, J H
description Reactor neutrino experiments play a crucial role in advancing our knowledge of neutrinos. In this Letter, the evolution of the flux and spectrum as a function of the reactor isotopic content is reported in terms of the inverse-beta-decay yield at Daya Bay with 1958 days of data and improved systematic uncertainties. These measurements are compared with two signature model predictions: the Huber-Mueller model based on the conversion method and the SM2018 model based on the summation method. The measured average flux and spectrum, as well as the flux evolution with the ^{239}Pu isotopic fraction, are inconsistent with the predictions of the Huber-Mueller model. In contrast, the SM2018 model is shown to agree with the average flux and its evolution but fails to describe the energy spectrum. Altering the predicted inverse-beta-decay spectrum from ^{239}Pu fission does not improve the agreement with the measurement for either model. The models can be brought into better agreement with the measurements if either the predicted spectrum due to ^{235}U fission is changed or the predicted ^{235}U, ^{238}U, ^{239}Pu, and ^{241}Pu spectra are changed in equal measure.
doi_str_mv 10.1103/PhysRevLett.130.211801
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Society</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>1XC</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0002-7111-5353</orcidid><orcidid>https://orcid.org/0000-0001-7383-467X</orcidid><orcidid>https://orcid.org/0000000271115353</orcidid><orcidid>https://orcid.org/000000017383467X</orcidid></search><sort><creationdate>20230526</creationdate><title>Improved Measurement of the Evolution of the Reactor Antineutrino Flux and Spectrum at Daya Bay</title><author>Cao, G F ; Chen, Y ; Chen, Y X ; Cheng, J ; Cummings, J P ; Dalager, O ; Deng, F S ; Ding, Y Y ; Diwan, M V ; Dolzhikov, D ; Dove, J ; Dwyer, D A ; Gallo, J P ; Gonchar, M ; Gu, W Q ; Guo, J Y ; Guo, L ; Guo, Y H ; Hackenburg, R W ; Han, Y ; He, M ; Hu, B Z ; Hu, J R ; Hu, Z J ; Huang, Y B ; Huber, P ; Jaffe, D E ; Jen, K L ; Ji, X L ; Jones, D ; Langford, T J ; Lee, J H C ; Li, H L ; Li, Q J ; Li, S C ; Li, W D ; Li, X Q ; Li, Z B ; Lin, G L ; Lin, S ; Littenberg, L ; Liu, J C ; Liu, J L ; Lu, C ; Ma, X B ; Ma, X Y ; Mandujano, R C ; Marshall, C ; McDonald, K T ; McKeown, R D ; Meng, Y ; Napolitano, J ; Naumova, E ; Nguyen, T M T ; Patton, S ; Peng, J C ; Qi, M ; Qian, X ; Raper, N ; Ren, J ; Morales Reveco, C ; Ruan, X C ; Russell, B ; Sun, J L ; Treskov, K ; Tse, W-H ; Tull, C E ; Tung, Y C ; Viren, B ; Vorobel, V ; Wang, C H ; Wang, J ; Wang, M ; Wang, N Y ; Wang, Y ; Wei, H Y ; Wen, L J ; Whisnant, K ; Wong, H L H ; Wu, Q ; Xie, Z Q ; Xu, J L ; Yang, L ; Yao, H F ; Ye, M ; Young, B L ; Yu, H Z ; Yu, Z Y ; Yue, B B ; Zavadskyi, V ; Zeng, S ; Zeng, Y ; Zhang, C ; Zhang, H H ; Zhang, J W ; Zhang, S Q ; Zhang, Y M ; Zhang, Z J ; Zhou, L ; Zou, J H</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c420t-123e00e9c78b21a712a8f36033cd475fcce5c9f9b84753560e0002c83248863f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>High Energy Physics - Experiment</topic><topic>Nuclear Reactors</topic><topic>Physics</topic><topic>Uranium</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cao, G F</creatorcontrib><creatorcontrib>Chen, Y</creatorcontrib><creatorcontrib>Chen, Y X</creatorcontrib><creatorcontrib>Cheng, J</creatorcontrib><creatorcontrib>Cummings, J P</creatorcontrib><creatorcontrib>Dalager, O</creatorcontrib><creatorcontrib>Deng, F S</creatorcontrib><creatorcontrib>Ding, Y Y</creatorcontrib><creatorcontrib>Diwan, M V</creatorcontrib><creatorcontrib>Dolzhikov, D</creatorcontrib><creatorcontrib>Dove, J</creatorcontrib><creatorcontrib>Dwyer, D A</creatorcontrib><creatorcontrib>Gallo, J P</creatorcontrib><creatorcontrib>Gonchar, M</creatorcontrib><creatorcontrib>Gu, W Q</creatorcontrib><creatorcontrib>Guo, J Y</creatorcontrib><creatorcontrib>Guo, L</creatorcontrib><creatorcontrib>Guo, Y H</creatorcontrib><creatorcontrib>Hackenburg, R W</creatorcontrib><creatorcontrib>Han, Y</creatorcontrib><creatorcontrib>He, M</creatorcontrib><creatorcontrib>Hu, B Z</creatorcontrib><creatorcontrib>Hu, J R</creatorcontrib><creatorcontrib>Hu, Z J</creatorcontrib><creatorcontrib>Huang, Y B</creatorcontrib><creatorcontrib>Huber, P</creatorcontrib><creatorcontrib>Jaffe, D E</creatorcontrib><creatorcontrib>Jen, K L</creatorcontrib><creatorcontrib>Ji, X L</creatorcontrib><creatorcontrib>Jones, D</creatorcontrib><creatorcontrib>Langford, T J</creatorcontrib><creatorcontrib>Lee, J H C</creatorcontrib><creatorcontrib>Li, H L</creatorcontrib><creatorcontrib>Li, Q J</creatorcontrib><creatorcontrib>Li, S C</creatorcontrib><creatorcontrib>Li, W D</creatorcontrib><creatorcontrib>Li, X Q</creatorcontrib><creatorcontrib>Li, Z B</creatorcontrib><creatorcontrib>Lin, G L</creatorcontrib><creatorcontrib>Lin, S</creatorcontrib><creatorcontrib>Littenberg, L</creatorcontrib><creatorcontrib>Liu, J C</creatorcontrib><creatorcontrib>Liu, J L</creatorcontrib><creatorcontrib>Lu, C</creatorcontrib><creatorcontrib>Ma, X B</creatorcontrib><creatorcontrib>Ma, X Y</creatorcontrib><creatorcontrib>Mandujano, R C</creatorcontrib><creatorcontrib>Marshall, C</creatorcontrib><creatorcontrib>McDonald, K T</creatorcontrib><creatorcontrib>McKeown, R D</creatorcontrib><creatorcontrib>Meng, Y</creatorcontrib><creatorcontrib>Napolitano, J</creatorcontrib><creatorcontrib>Naumova, E</creatorcontrib><creatorcontrib>Nguyen, T M T</creatorcontrib><creatorcontrib>Patton, S</creatorcontrib><creatorcontrib>Peng, J C</creatorcontrib><creatorcontrib>Qi, M</creatorcontrib><creatorcontrib>Qian, X</creatorcontrib><creatorcontrib>Raper, N</creatorcontrib><creatorcontrib>Ren, J</creatorcontrib><creatorcontrib>Morales Reveco, C</creatorcontrib><creatorcontrib>Ruan, X C</creatorcontrib><creatorcontrib>Russell, B</creatorcontrib><creatorcontrib>Sun, J L</creatorcontrib><creatorcontrib>Treskov, K</creatorcontrib><creatorcontrib>Tse, W-H</creatorcontrib><creatorcontrib>Tull, C E</creatorcontrib><creatorcontrib>Tung, Y C</creatorcontrib><creatorcontrib>Viren, B</creatorcontrib><creatorcontrib>Vorobel, V</creatorcontrib><creatorcontrib>Wang, C H</creatorcontrib><creatorcontrib>Wang, J</creatorcontrib><creatorcontrib>Wang, M</creatorcontrib><creatorcontrib>Wang, N Y</creatorcontrib><creatorcontrib>Wang, Y</creatorcontrib><creatorcontrib>Wei, H Y</creatorcontrib><creatorcontrib>Wen, L J</creatorcontrib><creatorcontrib>Whisnant, K</creatorcontrib><creatorcontrib>Wong, H L H</creatorcontrib><creatorcontrib>Wu, Q</creatorcontrib><creatorcontrib>Xie, Z Q</creatorcontrib><creatorcontrib>Xu, J L</creatorcontrib><creatorcontrib>Yang, L</creatorcontrib><creatorcontrib>Yao, H F</creatorcontrib><creatorcontrib>Ye, M</creatorcontrib><creatorcontrib>Young, B L</creatorcontrib><creatorcontrib>Yu, H Z</creatorcontrib><creatorcontrib>Yu, Z Y</creatorcontrib><creatorcontrib>Yue, B B</creatorcontrib><creatorcontrib>Zavadskyi, V</creatorcontrib><creatorcontrib>Zeng, S</creatorcontrib><creatorcontrib>Zeng, Y</creatorcontrib><creatorcontrib>Zhang, C</creatorcontrib><creatorcontrib>Zhang, H H</creatorcontrib><creatorcontrib>Zhang, J W</creatorcontrib><creatorcontrib>Zhang, S Q</creatorcontrib><creatorcontrib>Zhang, Y M</creatorcontrib><creatorcontrib>Zhang, Z J</creatorcontrib><creatorcontrib>Zhou, L</creatorcontrib><creatorcontrib>Zou, J H</creatorcontrib><creatorcontrib>Daya Bay Collaboration</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>OSTI.GOV</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cao, G F</au><au>Chen, Y</au><au>Chen, Y X</au><au>Cheng, J</au><au>Cummings, J P</au><au>Dalager, O</au><au>Deng, F S</au><au>Ding, Y Y</au><au>Diwan, M V</au><au>Dolzhikov, D</au><au>Dove, J</au><au>Dwyer, D A</au><au>Gallo, J P</au><au>Gonchar, M</au><au>Gu, W Q</au><au>Guo, J Y</au><au>Guo, L</au><au>Guo, Y H</au><au>Hackenburg, R W</au><au>Han, Y</au><au>He, M</au><au>Hu, B Z</au><au>Hu, J R</au><au>Hu, Z J</au><au>Huang, Y B</au><au>Huber, P</au><au>Jaffe, D E</au><au>Jen, K L</au><au>Ji, X L</au><au>Jones, D</au><au>Langford, T J</au><au>Lee, J H C</au><au>Li, H L</au><au>Li, Q J</au><au>Li, S C</au><au>Li, W D</au><au>Li, X Q</au><au>Li, Z B</au><au>Lin, G L</au><au>Lin, S</au><au>Littenberg, L</au><au>Liu, J C</au><au>Liu, J L</au><au>Lu, C</au><au>Ma, X B</au><au>Ma, X Y</au><au>Mandujano, R C</au><au>Marshall, C</au><au>McDonald, K T</au><au>McKeown, R D</au><au>Meng, Y</au><au>Napolitano, J</au><au>Naumova, E</au><au>Nguyen, T M T</au><au>Patton, S</au><au>Peng, J C</au><au>Qi, M</au><au>Qian, X</au><au>Raper, N</au><au>Ren, J</au><au>Morales Reveco, C</au><au>Ruan, X C</au><au>Russell, B</au><au>Sun, J L</au><au>Treskov, K</au><au>Tse, W-H</au><au>Tull, C E</au><au>Tung, Y C</au><au>Viren, B</au><au>Vorobel, V</au><au>Wang, C H</au><au>Wang, J</au><au>Wang, M</au><au>Wang, N Y</au><au>Wang, Y</au><au>Wei, H Y</au><au>Wen, L J</au><au>Whisnant, K</au><au>Wong, H L H</au><au>Wu, Q</au><au>Xie, Z Q</au><au>Xu, J L</au><au>Yang, L</au><au>Yao, H F</au><au>Ye, M</au><au>Young, B L</au><au>Yu, H Z</au><au>Yu, Z Y</au><au>Yue, B B</au><au>Zavadskyi, V</au><au>Zeng, S</au><au>Zeng, Y</au><au>Zhang, C</au><au>Zhang, H H</au><au>Zhang, J W</au><au>Zhang, S Q</au><au>Zhang, Y M</au><au>Zhang, Z J</au><au>Zhou, L</au><au>Zou, J H</au><aucorp>Daya Bay Collaboration</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Improved Measurement of the Evolution of the Reactor Antineutrino Flux and Spectrum at Daya Bay</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2023-05-26</date><risdate>2023</risdate><volume>130</volume><issue>21</issue><spage>211801</spage><epage>211801</epage><pages>211801-211801</pages><artnum>211801</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><notes>ObjectType-Article-1</notes><notes>SourceType-Scholarly Journals-1</notes><notes>ObjectType-Feature-2</notes><notes>content type line 23</notes><notes>USDOE</notes><abstract>Reactor neutrino experiments play a crucial role in advancing our knowledge of neutrinos. In this Letter, the evolution of the flux and spectrum as a function of the reactor isotopic content is reported in terms of the inverse-beta-decay yield at Daya Bay with 1958 days of data and improved systematic uncertainties. These measurements are compared with two signature model predictions: the Huber-Mueller model based on the conversion method and the SM2018 model based on the summation method. The measured average flux and spectrum, as well as the flux evolution with the ^{239}Pu isotopic fraction, are inconsistent with the predictions of the Huber-Mueller model. In contrast, the SM2018 model is shown to agree with the average flux and its evolution but fails to describe the energy spectrum. Altering the predicted inverse-beta-decay spectrum from ^{239}Pu fission does not improve the agreement with the measurement for either model. The models can be brought into better agreement with the measurements if either the predicted spectrum due to ^{235}U fission is changed or the predicted ^{235}U, ^{238}U, ^{239}Pu, and ^{241}Pu spectra are changed in equal measure.</abstract><cop>United States</cop><pub>American Physical Society</pub><pmid>37295075</pmid><doi>10.1103/PhysRevLett.130.211801</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0002-7111-5353</orcidid><orcidid>https://orcid.org/0000-0001-7383-467X</orcidid><orcidid>https://orcid.org/0000000271115353</orcidid><orcidid>https://orcid.org/000000017383467X</orcidid><oa>free_for_read</oa></addata></record>
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1079-7114
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recordid cdi_osti_scitechconnect_1974648
source EZB Electronic Journals Library
subjects High Energy Physics - Experiment
Nuclear Reactors
Physics
Uranium
title Improved Measurement of the Evolution of the Reactor Antineutrino Flux and Spectrum at Daya Bay
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