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  1. Article ; Online: Improved Measurement of the Evolution of the Reactor Antineutrino Flux and Spectrum at Daya Bay.

    An, F P / Bai, W D / Balantekin, A B / Bishai, M / Blyth, S / Cao, G F / Cao, J / Chang, J F / Chang, Y / Chen, H S / Chen, H Y / Chen, S M / Chen, Y / Chen, Y X / Cheng, J / Cheng, Y-C / Cheng, Z K / Cherwinka, J J / Chu, M C /
    Cummings, J P / Dalager, O / Deng, F S / Ding, Y Y / Diwan, M V / Dohnal, T / Dolzhikov, D / Dove, J / Dugas, K V / Duyang, H Y / Dwyer, D A / Gallo, J P / Gonchar, M / Gong, G H / Gong, H / Gu, W Q / Guo, J Y / Guo, L / Guo, X H / Guo, Y H / Guo, Z / Hackenburg, R W / Han, Y / Hans, S / He, M / Heeger, K M / Heng, Y K / Hor, Y K / Hsiung, Y B / Hu, B Z / Hu, J R / Hu, T / Hu, Z J / Huang, H X / Huang, J H / Huang, X T / Huang, Y B / Huber, P / Jaffe, D E / Jen, K L / Ji, X L / Ji, X P / Johnson, R A / Jones, D / Kang, L / Kettell, S H / Kohn, S / Kramer, M / Langford, T J / Lee, J / Lee, J H C / Lei, R T / Leitner, R / Leung, J K C / Li, 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 / Liang, H / Lin, C J / Lin, G L / Lin, S / Ling, J J / Link, J M / Littenberg, L / Littlejohn, B R / Liu, J C / Liu, J L / Liu, J X / Lu, C / Lu, H Q / Luk, K B / Ma, B Z / Ma, X B / Ma, X Y / Ma, Y Q / Mandujano, R C / Marshall, C / McDonald, K T / McKeown, R D / Meng, Y / Napolitano, J / Naumov, D / Naumova, E / Nguyen, T M T / Ochoa-Ricoux, J P / Olshevskiy, A / Park, J / Patton, S / Peng, J C / Pun, C S J / Qi, F Z / Qi, M / Qian, X / Raper, N / Ren, J / Morales Reveco, C / Rosero, R / Roskovec, B / Ruan, X C / Russell, B / Steiner, H / Sun, J L / Tmej, T / 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, R G / Wang, W / Wang, X / Wang, Y / Wang, Y F / Wang, Z / Wang, Z M / Wei, H Y / Wei, L H / Wen, L J / Whisnant, K / White, C G / Wong, H L H / Worcester, E / Wu, D R / Wu, Q / Wu, W J / Xia, D M / Xie, Z Q / Xing, Z Z / Xu, H K / Xu, J L / Xu, T / Xue, T / Yang, C G / Yang, L / Yang, Y Z / Yao, H F / Ye, M / Yeh, M / Young, B L / Yu, H Z / Yu, Z Y / Yue, B B / Zavadskyi, V / Zeng, S / Zeng, Y / Zhan, L / Zhang, C / Zhang, F Y / Zhang, H H / Zhang, J L / 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 / Zhao, J / Zhao, R Z / Zhou, L / Zhuang, H L / Zou, J H

    Physical review letters

    2023  Volume 130, Issue 21, Page(s) 211801

    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 ... ...

    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.
    MeSH term(s) Nuclear Reactors ; Uranium
    Chemical Substances Plutonium-239 (ET2Z8EJJ1X) ; Uranium (4OC371KSTK)
    Language English
    Publishing date 2023-05-30
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.130.211801
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Precision Measurement of Reactor Antineutrino Oscillation at Kilometer-Scale Baselines by Daya Bay.

    An, F P / Bai, W D / Balantekin, A B / Bishai, M / Blyth, S / Cao, G F / Cao, J / Chang, J F / Chang, Y / Chen, H S / Chen, H Y / Chen, S M / Chen, Y / Chen, Y X / Chen, Z Y / Cheng, J / Cheng, Z K / Cherwinka, J J / Chu, M C /
    Cummings, J P / Dalager, O / Deng, F S / Ding, Y Y / Ding, X Y / Diwan, M V / Dohnal, T / Dolzhikov, D / Dove, J / Duyang, H Y / Dwyer, D A / Gallo, J P / Gonchar, M / Gong, G H / Gong, H / Gu, W Q / Guo, J Y / Guo, L / Guo, X H / Guo, Y H / Guo, Z / Hackenburg, R W / Han, Y / Hans, S / He, M / Heeger, K M / Heng, Y K / Hor, Y K / Hsiung, Y B / Hu, B Z / Hu, J R / Hu, T / Hu, Z J / Huang, H X / Huang, J H / Huang, X T / Huang, Y B / Huber, P / Jaffe, D E / Jen, K L / Ji, X L / Ji, X P / Johnson, R A / Jones, D / Kang, L / Kettell, S H / Kohn, S / Kramer, M / Langford, T J / Lee, J / Lee, J H C / Lei, R T / Leitner, R / Leung, J K C / Li, 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 / Liang, H / Lin, C J / Lin, G L / Lin, S / Ling, J J / Link, J M / Littenberg, L / Littlejohn, B R / Liu, J C / Liu, J L / Liu, J X / Lu, C / Lu, H Q / Luk, K B / Ma, B Z / Ma, X B / Ma, X Y / Ma, Y Q / Mandujano, R C / Marshall, C / McDonald, K T / McKeown, R D / Meng, Y / Napolitano, J / Naumov, D / Naumova, E / Nguyen, T M T / Ochoa-Ricoux, J P / Olshevskiy, A / Pan, H-R / Park, J / Patton, S / Peng, J C / Pun, C S J / Qi, F Z / Qi, M / Qian, X / Raper, N / Ren, J / Morales Reveco, C / Rosero, R / Roskovec, B / Ruan, X C / Russell, B / Steiner, H / Sun, J L / Tmej, T / Treskov, K / Tse, W-H / Tull, C E / Viren, B / Vorobel, V / Wang, C H / Wang, J / Wang, M / Wang, N Y / Wang, R G / Wang, W / Wang, X / Wang, Y / Wang, Y F / Wang, Z / Wang, Z M / Wei, H Y / Wei, L H / Wei, W / Wen, L J / Whisnant, K / White, C G / Wong, H L H / Worcester, E / Wu, D R / Wu, Q / Wu, W J / Xia, D M / Xie, Z Q / Xing, Z Z / Xu, H K / Xu, J L / Xu, T / Xue, T / Yang, C G / Yang, L / Yang, Y Z / Yao, H F / Ye, M / Yeh, M / Young, B L / Yu, H Z / Yu, Z Y / Yue, B B / Zavadskyi, V / Zeng, S / Zeng, Y / Zhan, L / Zhang, C / Zhang, F Y / Zhang, H H / Zhang, J L / 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 / Zhao, J / Zhao, R Z / Zhou, L / Zhuang, H L / Zou, J H

    Physical review letters

    2023  Volume 130, Issue 16, Page(s) 161802

    Abstract: We present a new determination of the smallest neutrino mixing angle θ_{13} and the mass-squared difference Δm_{32}^{2} using a final sample of 5.55×10^{6} inverse beta-decay (IBD) candidates with the final-state neutron captured on gadolinium. This ... ...

    Abstract We present a new determination of the smallest neutrino mixing angle θ_{13} and the mass-squared difference Δm_{32}^{2} using a final sample of 5.55×10^{6} inverse beta-decay (IBD) candidates with the final-state neutron captured on gadolinium. This sample is selected from the complete dataset obtained by the Daya Bay reactor neutrino experiment in 3158 days of operation. Compared to the previous Daya Bay results, selection of IBD candidates has been optimized, energy calibration refined, and treatment of backgrounds further improved. The resulting oscillation parameters are sin^{2}2θ_{13}=0.0851±0.0024, Δm_{32}^{2}=(2.466±0.060)×10^{-3}  eV^{2} for the normal mass ordering or Δm_{32}^{2}=-(2.571±0.060)×10^{-3}  eV^{2} for the inverted mass ordering.
    Language English
    Publishing date 2023-05-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.130.161802
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: First Measurement of High-Energy Reactor Antineutrinos at Daya Bay.

    An, F P / Bai, W D / Balantekin, A B / Bishai, M / Blyth, S / Cao, G F / Cao, J / Chang, J F / Chang, Y / Chen, H S / Chen, H Y / Chen, S M / Chen, Y / Chen, Y X / Cheng, J / Cheng, Z K / Cherwinka, J J / Chu, M C / Cummings, J P /
    Dalager, O / Deng, F S / Ding, Y Y / Diwan, M V / Dohnal, T / Dolzhikov, D / Dove, J / Dwyer, D A / Gallo, J P / Gonchar, M / Gong, G H / Gong, H / Gu, W Q / Guo, J Y / Guo, L / Guo, X H / Guo, Y H / Guo, Z / Hackenburg, R W / Hans, S / He, M / Heeger, K M / Heng, Y K / Hor, Y K / Hsiung, Y B / Hu, B Z / Hu, J R / Hu, T / Hu, Z J / Huang, H X / Huang, J H / Huang, X T / Huang, Y B / Huber, P / Jaffe, D E / Jen, K L / Ji, X L / Ji, X P / Johnson, R A / Jones, D / Kang, L / Kettell, S H / Kohn, S / Kramer, M / Langford, T J / Lee, J / Lee, J H C / Lei, R T / Leitner, R / Leung, J K C / Li, 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 / Liang, H / Lin, C J / Lin, G L / Lin, S / Ling, J J / Link, J M / Littenberg, L / Littlejohn, B R / Liu, J C / Liu, J L / Liu, J X / Lu, C / Lu, H Q / Luk, K B / Ma, B Z / Ma, X B / Ma, X Y / Ma, Y Q / Mandujano, R C / Marshall, C / McDonald, K T / McKeown, R D / Meng, Y / Napolitano, J / Naumov, D / Naumova, E / Nguyen, T M T / Ochoa-Ricoux, J P / Olshevskiy, A / Pan, H-R / Park, J / Patton, S / Peng, J C / Pun, C S J / Qi, F Z / Qi, M / Qian, X / Raper, N / Ren, J / Morales Reveco, C / Rosero, R / Roskovec, B / Ruan, X C / Steiner, H / Sun, J L / Tmej, T / Treskov, K / Tse, W-H / Tull, C E / Viren, B / Vorobel, V / Wang, C H / Wang, J / Wang, M / Wang, N Y / Wang, R G / Wang, W / Wang, X / Wang, Y / Wang, Y F / Wang, Z / Wang, Z M / Wei, H Y / Wei, L H / Wen, L J / Whisnant, K / White, C G / Wong, H L H / Worcester, E / Wu, D R / Wu, Q / Wu, W J / Xia, D M / Xie, Z Q / Xing, Z Z / Xu, H K / Xu, J L / Xu, T / Xue, T / Yang, C G / Yang, L / Yang, Y Z / Yao, H F / Ye, M / Yeh, M / Young, B L / Yu, H Z / Yu, Z Y / Yue, B B / Zavadskyi, V / Zeng, S / Zeng, Y / Zhan, L / Zhang, C / Zhang, F Y / Zhang, H H / Zhang, J L / 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 / Zhao, J / Zhao, R Z / Zhou, L / Zhuang, H L / Zou, J H

    Physical review letters

    2022  Volume 129, Issue 4, Page(s) 41801

    Abstract: This Letter reports the first measurement of high-energy reactor antineutrinos at Daya Bay, with nearly 9000 inverse beta decay candidates in the prompt energy region of 8-12 MeV observed over 1958 days of data collection. A multivariate analysis is used ...

    Abstract This Letter reports the first measurement of high-energy reactor antineutrinos at Daya Bay, with nearly 9000 inverse beta decay candidates in the prompt energy region of 8-12 MeV observed over 1958 days of data collection. A multivariate analysis is used to separate 2500 signal events from background statistically. The hypothesis of no reactor antineutrinos with neutrino energy above 10 MeV is rejected with a significance of 6.2 standard deviations. A 29% antineutrino flux deficit in the prompt energy region of 8-11 MeV is observed compared to a recent model prediction. We provide the unfolded antineutrino spectrum above 7 MeV as a data-based reference for other experiments. This result provides the first direct observation of the production of antineutrinos from several high-Q_{β} isotopes in commercial reactors.
    Language English
    Publishing date 2022-08-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.129.041801
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Joint Determination of Reactor Antineutrino Spectra from ^{235}U and ^{239}Pu Fission by Daya Bay and PROSPECT.

    An, F P / Andriamirado, M / Balantekin, A B / Band, H R / Bass, C D / Bergeron, D E / Berish, D / Bishai, M / Blyth, S / Bowden, N S / Bryan, C D / Cao, G F / Cao, J / Chang, J F / Chang, Y / Chen, H S / Chen, S M / Chen, Y / Chen, Y X /
    Cheng, J / Cheng, Z K / Cherwinka, J J / Chu, M C / Classen, T / Conant, A J / Cummings, J P / Dalager, O / Deichert, G / Delgado, A / Deng, F S / Ding, Y Y / Diwan, M V / Dohnal, T / Dolinski, M J / Dolzhikov, D / Dove, J / Dvořák, M / Dwyer, D A / Erickson, A / Foust, B T / Gaison, J K / Galindo-Uribarri, A / Gallo, J P / Gilbert, C E / Gonchar, M / Gong, G H / Gong, H / Grassi, M / Gu, W Q / Guo, J Y / Guo, L / Guo, X H / Guo, Y H / Guo, Z / Hackenburg, R W / Hans, S / Hansell, A B / He, M / Heeger, K M / Heffron, B / Heng, Y K / Hor, Y K / Hsiung, Y B / Hu, B Z / Hu, J R / Hu, T / Hu, Z J / Huang, H X / Huang, J H / Huang, X T / Huang, Y B / Huber, P / Koblanski, J / Jaffe, D E / Jayakumar, S / Jen, K L / Ji, X L / Ji, X P / Johnson, R A / Jones, D C / Kang, L / Kettell, S H / Kohn, S / Kramer, M / Kyzylova, O / Lane, C E / Langford, T J / LaRosa, J / Lee, J / Lee, J H C / Lei, R T / Leitner, R / Leung, J K C / Li, 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 / Liang, H / Lin, C J / Lin, G L / Lin, S / Ling, J J / Link, J M / Littenberg, L / Littlejohn, B R / Liu, J C / Liu, J L / Liu, J X / Lu, C / Lu, H Q / Lu, X / Luk, K B / Ma, B Z / Ma, X B / Ma, X Y / Ma, Y Q / Mandujano, R C / Maricic, J / Marshall, C / McDonald, K T / McKeown, R D / Mendenhall, M P / Meng, Y / Meyer, A M / Milincic, R / Mueller, P E / Mumm, H P / Napolitano, J / Naumov, D / Naumova, E / Neilson, R / Nguyen, T M T / Nikkel, J A / Nour, S / Ochoa-Ricoux, J P / Olshevskiy, A / Palomino, J L / Pan, H-R / Park, J / Patton, S / Peng, J C / Pun, C S J / Pushin, D A / Qi, F Z / Qi, M / Qian, X / Raper, N / Ren, J / Morales Reveco, C / Rosero, R / Roskovec, B / Ruan, X C / Searles, M / Steiner, H / Sun, J L / Surukuchi, P T / Tmej, T / Treskov, K / Tse, W-H / Tull, C E / Tyra, M A / Varner, R L / Venegas-Vargas, D / Viren, B / Vorobel, V / Wang, C H / Wang, J / Wang, M / Wang, N Y / Wang, R G / Wang, W / Wang, X / Wang, Y / Wang, Y F / Wang, Z / Wang, Z M / Weatherly, P B / Wei, H Y / Wei, L H / Wen, L J / Whisnant, K / White, C / Wilhelmi, J / Wong, H L H / Woolverton, A / Worcester, E / Wu, D R / Wu, F L / Wu, Q / Wu, W J / Xia, D M / Xie, Z Q / Xing, Z Z / Xu, H K / Xu, J L / Xu, T / Xue, T / Yang, C G / Yang, L / Yang, Y Z / Yao, H F / Ye, M / Yeh, M / Young, B L / Yu, H Z / Yu, Z Y / Yue, B B / Zavadskyi, V / Zeng, S / Zeng, Y / Zhan, L / Zhang, C / Zhang, F Y / Zhang, H H / Zhang, J W / Zhang, Q M / Zhang, S Q / Zhang, X / Zhang, X T / Zhang, Y M / Zhang, Y X / Zhang, Y Y / Zhang, Z J / Zhang, Z P / Zhang, Z Y / Zhao, J / Zhao, R Z / Zhou, L / Zhuang, H L / Zou, J H

    Physical review letters

    2022  Volume 128, Issue 8, Page(s) 81801

    Abstract: A joint determination of the reactor antineutrino spectra resulting from the fission of ^{235}U and ^{239}Pu has been carried out by the Daya Bay and PROSPECT Collaborations. This Letter reports the level of consistency of ^{235}U spectrum measurements ... ...

    Abstract A joint determination of the reactor antineutrino spectra resulting from the fission of ^{235}U and ^{239}Pu has been carried out by the Daya Bay and PROSPECT Collaborations. This Letter reports the level of consistency of ^{235}U spectrum measurements from the two experiments and presents new results from a joint analysis of both data sets. The measurements are found to be consistent. The combined analysis reduces the degeneracy between the dominant ^{235}U and ^{239}Pu isotopes and improves the uncertainty of the ^{235}U spectral shape to about 3%. The ^{235}U and ^{239}Pu antineutrino energy spectra are unfolded from the jointly deconvolved reactor spectra using the Wiener-SVD unfolding method, providing a data-based reference for other reactor antineutrino experiments and other applications. This is the first measurement of the ^{235}U and ^{239}Pu spectra based on the combination of experiments at low- and highly enriched uranium reactors.
    Language English
    Publishing date 2022-03-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.128.081801
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Book ; Online: Antineutrino Energy Spectrum Unfolding Based on the Daya Bay Measurement and Its Applications

    Daya Bay collaboration / An, F. P. / Balantekin, A. B. / Band, H. R. / Bishai, M. / Blyth, S. / Cao, G. F. / Cao, J. / Chang, J. F. / Chang, Y. / Chen, H. S. / Chen, S. M. / Chen, Y. / Chen, Y. X. / Cheng, J. / Cheng, Z. K. / Cherwinka, J. J. / Chu, M. C. / Cummings, J. P. /
    Dalager, O. / Deng, F. S. / Ding, Y. Y. / Diwan, M. V. / Dohnal, T. / Dove, J. / Dvorak, M. / Dwyer, D. A. / Gallo, J. P. / Gonchar, M. / Gong, G. H. / Gong, H. / Gu, W. Q. / Guo, J. Y. / Guo, L. / Guo, X. H. / Guo, Y. H. / Guo, Z. / Hackenburg, R. W. / Hans, S. / He, M. / Heeger, K. M. / Heng, Y. K. / Higuera, A. / Hor, Y. K. / Hsiung, Y. B. / Hu, B. Z. / Hu, J. R. / Hu, T. / Hu, Z. J. / Huang, H. X. / Huang, X. T. / Huang, Y. B. / Huber, P. / Jaffe, D. E. / Jen, K. L. / Ji, X. L. / Ji, X. P. / Johnson, R. A. / Jones, D. / Kang, L. / Kettell, S. H. / Kohn, S. / Kramer, M. / Langford, T. J. / Lee, J. / Lee, J. H. C. / Lei, R. T. / Leitner, R. / Leung, J. K. C. / Li, F. / Li, J. J. / Li, Q. J. / Li, S. / Li, S. C. / Li, W. D. / Li, X. N. / Li, X. Q. / Li, Y. F. / Li, Z. B. / Liang, H. / Lin, C. J. / Lin, G. L. / Lin, S. / Ling, J. J. / Link, J. M. / Littenberg, L. / Littlejohn, B. R. / Liu, J. C. / Liu, J. L. / Lu, C. / Lu, H. Q. / Lu, J. S. / Luk, K. B. / Ma, X. B. / Ma, X. Y. / Ma, Y. Q. / Marshall, C. / Caicedo, D. A. Martinez / McDonald, K. T. / McKeown, R. D. / Meng, Y. / Napolitano, J. / Naumov, D. / Naumova, E. / Ochoa-Ricoux, J. P. / Olshevskiy, A. / Pan, H. -R. / Park, J. / Patton, S. / Peng, J. C. / Pun, C. S. J. / Qi, F. Z. / Qi, M. / Qian, X. / Raper, N. / Ren, J. / Reveco, C. Morales / Rosero, R. / Roskovec, B. / Ruan, X. C. / Steiner, H. / Sun, J. L. / Tmej, T. / Treskov, K. / Tse, W. -H. / Tull, C. E. / Viren, B. / Vorobel, V. / Wang, C. H. / Wang, J. / Wang, M. / Wang, N. Y. / Wang, R. G. / Wang, W. / Wang, X. / Wang, Y. / Wang, Y. F. / Wang, Z. / Wang, Z. M. / Wei, H. Y. / Wei, L. H. / Wen, L. J. / Whisnant, K. / White, C. G. / Wong, H. L. H. / Worcester, E. / Wu, D. R. / Wu, F. L. / Wu, Q. / Wu, W. J. / Xia, D. M. / Xie, Z. Q. / Xing, Z. Z. / Xu, J. L. / Xu, T. / Xue, T. / Yang, C. G. / Yang, L. / Yang, Y. Z. / Yao, H. F. / Ye, M. / Yeh, M. / Young, B. L. / Yu, H. Z. / Yu, Z. Y. / Yue, B. B. / Zeng, S. / Zeng, Y. / Zhan, L. / Zhang, C. / Zhang, F. Y. / Zhang, H. H. / Zhang, J. W. / Zhang, Q. M. / Zhang, X. T. / Zhang, Y. M. / Zhang, Y. X. / Zhang, Y. Y. / Zhang, Z. J. / Zhang, Z. P. / Zhang, Z. Y. / Zhao, J. / Zhou, L. / Zhuang, H. L. / Zou, J. H.

    2021  

    Abstract: The prediction of reactor antineutrino spectra will play a crucial role as reactor experiments enter the precision era. The positron energy spectrum of 3.5 million antineutrino inverse beta decay reactions observed by the Daya Bay experiment, in ... ...

    Abstract The prediction of reactor antineutrino spectra will play a crucial role as reactor experiments enter the precision era. The positron energy spectrum of 3.5 million antineutrino inverse beta decay reactions observed by the Daya Bay experiment, in combination with the fission rates of fissile isotopes in the reactor, is used to extract the positron energy spectra resulting from the fission of specific isotopes. This information can be used to produce a precise, data-based prediction of the antineutrino energy spectrum in other reactor antineutrino experiments with different fission fractions than Daya Bay. The positron energy spectra are unfolded to obtain the antineutrino energy spectra by removing the contribution from detector response with the Wiener-SVD unfolding method. Consistent results are obtained with other unfolding methods. A technique to construct a data-based prediction of the reactor antineutrino energy spectrum is proposed and investigated. Given the reactor fission fractions, the technique can predict the energy spectrum to a 2% precision. In addition, we illustrate how to perform a rigorous comparison between the unfolded antineutrino spectrum and a theoretical model prediction that avoids the input model bias of the unfolding method.

    Comment: 21 pages, 10 figures, 6 supplemental materials
    Keywords High Energy Physics - Experiment
    Subject code 660
    Publishing date 2021-02-08
    Publishing country us
    Document type Book ; Online
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  6. Article ; Online: Improved Constraints on Sterile Neutrino Mixing from Disappearance Searches in the MINOS, MINOS+, Daya Bay, and Bugey-3 Experiments.

    Adamson, P / An, F P / Anghel, I / Aurisano, A / Balantekin, A B / Band, H R / Barr, G / Bishai, M / Blake, A / Blyth, S / Cao, G F / Cao, J / Cao, S V / Carroll, T J / Castromonte, C M / Chang, J F / Chang, Y / Chen, H S / Chen, R /
    Chen, S M / Chen, Y / Chen, Y X / Cheng, J / Cheng, Z K / Cherwinka, J J / Childress, S / Chu, M C / Chukanov, A / Coelho, J A B / Cummings, J P / Dash, N / De Rijck, S / Deng, F S / Ding, Y Y / Diwan, M V / Dohnal, T / Dolzhikov, D / Dove, J / Dvořák, M / Dwyer, D A / Evans, J J / Feldman, G J / Flanagan, W / Gabrielyan, M / Gallo, J P / Germani, S / Gomes, R A / Gonchar, M / Gong, G H / Gong, H / Gouffon, P / Graf, N / Grzelak, K / Gu, W Q / Guo, J Y / Guo, L / Guo, X H / Guo, Y H / Guo, Z / Habig, A / Hackenburg, R W / Hahn, S R / Hans, S / Hartnell, J / Hatcher, R / He, M / Heeger, K M / Heng, Y K / Higuera, A / Holin, A / Hor, Y K / Hsiung, Y B / Hu, B Z / Hu, J R / Hu, T / Hu, Z J / Huang, H X / Huang, J / Huang, X T / Huang, Y B / Huber, P / Jaffe, D E / Jen, K L / Ji, X L / Ji, X P / Johnson, R A / Jones, D / Kang, L / Kettell, S H / Koerner, L W / Kohn, S / Kordosky, M / Kramer, M / Kreymer, A / Lang, K / Langford, T J / Lee, J / Lee, J H C / Lei, R T / Leitner, R / Leung, J K C / Li, F / Li, H L / Li, J J / Li, Q J / Li, S / Li, S C / Li, S J / Li, W D / Li, X N / Li, X Q / Li, Y F / Li, Z B / Liang, H / Lin, C J / Lin, G L / Lin, S / Ling, J J / Link, J M / Littenberg, L / Littlejohn, B R / Liu, J C / Liu, J L / Liu, Y / Liu, Y H / Lu, C / Lu, H Q / Lu, J S / Lucas, P / Luk, K B / Ma, X B / Ma, X Y / Ma, Y Q / Mann, W A / Marshak, M L / Marshall, C / Martinez Caicedo, D A / Mayer, N / McDonald, K T / McKeown, R D / Mehdiyev, R / Meier, J R / Meng, Y / Miller, W H / Mills, G / Mora Lepin, L / Naples, D / Napolitano, J / Naumov, D / Naumova, E / Nelson, J K / Nichol, R J / O'Connor, J / Ochoa-Ricoux, J P / Olshevskiy, A / Pahlka, R B / Pan, H-R / Park, J / Patton, S / Pavlović, Ž / Pawloski, G / Peng, J C / Perch, A / Pfützner, M M / Phan, D D / Plunkett, R K / Poonthottathil, N / Pun, C S J / Qi, F Z / Qi, M / Qian, X / Qiu, X / Radovic, A / Raper, N / Ren, J / Reveco, C Morales / Rosero, R / Roskovec, B / Ruan, X C / Sail, P / Sanchez, M C / Schneps, J / Schreckenberger, A / Shaheed, N / Sharma, R / Sousa, A / Steiner, H / Sun, J L / Tagg, N / Thomas, J / Thomson, M A / Timmons, A / Tmej, T / Todd, J / Tognini, S C / Toner, R / Torretta, D / Treskov, K / Tse, W-H / Tull, C E / Vahle, P / Viren, B / Vorobel, V / Wang, C H / Wang, J / Wang, M / Wang, N Y / Wang, R G / Wang, W / Wang, X / Wang, Y / Wang, Y F / Wang, Z / Wang, Z M / Weber, A / Wei, H Y / Wei, L H / Wen, L J / Whisnant, K / White, C / Whitehead, L H / Wojcicki, S G / Wong, H L H / Wong, S C F / Worcester, E / Wu, D R / Wu, F L / Wu, Q / Wu, W J / Xia, D M / Xie, Z Q / Xing, Z Z / Xu, J L / Xu, T / Xue, T / Yang, C G / Yang, L / Yang, Y Z / Yao, H F / Ye, M / Yeh, M / Young, B L / Yu, H Z / Yu, Z Y / Yue, B B / Zeng, S / Zeng, Y / Zhan, L / Zhang, C / Zhang, F Y / Zhang, H H / Zhang, J W / Zhang, Q M / Zhang, X T / Zhang, Y M / Zhang, Y X / Zhang, Y Y / Zhang, Z J / Zhang, Z P / Zhang, Z Y / Zhao, J / Zhou, L / Zhuang, H L

    Physical review letters

    2020  Volume 125, Issue 7, Page(s) 71801

    Abstract: Searches for electron antineutrino, muon neutrino, and muon antineutrino disappearance driven by sterile neutrino mixing have been carried out by the Daya Bay and MINOS+ collaborations. This Letter presents the combined results of these searches, along ... ...

    Abstract Searches for electron antineutrino, muon neutrino, and muon antineutrino disappearance driven by sterile neutrino mixing have been carried out by the Daya Bay and MINOS+ collaborations. This Letter presents the combined results of these searches, along with exclusion results from the Bugey-3 reactor experiment, framed in a minimally extended four-neutrino scenario. Significantly improved constraints on the θ_{μe} mixing angle are derived that constitute the most constraining limits to date over five orders of magnitude in the mass-squared splitting Δm_{41}^{2}, excluding the 90% C.L. sterile-neutrino parameter space allowed by the LSND and MiniBooNE observations at 90% CL_{s} for Δm_{41}^{2}<13  eV^{2}. Furthermore, the LSND and MiniBooNE 99% C.L. allowed regions are excluded at 99% CL_{s} for Δm_{41}^{2}<1.6 eV^{2}.
    Language English
    Publishing date 2020-06-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.125.071801
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  7. Book ; Online: Joint Determination of Reactor Antineutrino Spectra from $^{235}$U and $^{239}$Pu Fission by Daya Bay and PROSPECT

    Daya Bay Collaboration / PROSPECT Collaboration / An, F. P. / Andriamirado, M. / Balantekin, A. B. / Band, H. R. / Bass, C. D. / Bergeron, D. E. / Berish, D. / Bishai, M. / Blyth, S. / Bowden, N. S. / Bryan, C. D. / Cao, G. F. / Cao, J. / Chang, J. F. / Chang, Y. / Chen, H. S. / Chen, S. M. /
    Chen, Y. / Chen, Y. X. / Cheng, J. / Cheng, Z. K. / Cherwinka, J. J. / Chu, M. C. / Classen, T. / Conant, A. J. / Cummings, J. P. / Dalager, O. / Deichert, G. / Delgado, A. / Deng, F. S. / Ding, Y. Y. / Diwan, M. V. / Dohnal, T. / Dolinski, M. J. / Dolzhikov, D. / Dove, J. / Dvorak, M. / Dwyer, D. A. / Erickson, A. / Foust, B. T. / Gaison, J. K. / Galindo-Uribarri, A. / Gallo, J. P. / Gilbert, C. E. / Gonchar, M. / Gong, G. H. / Gong, H. / Grassi, M. / Gu, W. Q. / Guo, J. Y. / Guo, L. / Guo, X. H. / Guo, Y. H. / Guo, Z. / Hackenburg, R. W. / Hans, S. / Hansell, A. B. / He, M. / Heeger, K. M. / Heffron, B. / Heng, Y. K. / Hor, Y. K. / Hsiung, Y. B. / Hu, B. Z. / Hu, J. R. / Hu, T. / Hu, Z. J. / Huang, H. X. / Huang, J. H. / Huang, X. T. / Huang, Y. B. / Huber, P. / Koblanski, J. / Jaffe, D. E. / Jayakumar, S. / Jen, K. L. / Ji, X. L. / Ji, X. P. / Johnson, R. A. / Jones, D. C. / Kang, L. / Kettell, S. H. / Kohn, S. / Kramer, M. / Kyzylova, O. / Lane, C. E. / Langford, T. J. / LaRosa, J. / Lee, J. / Lee, J. H. C. / Lei, R. T. / Leitner, R. / Leung, J. K. C. / Li, 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. / Liang, H. / Lin, C. J. / Lin, G. L. / Lin, S. / Ling, J. J. / Link, J. M. / Littenberg, L. / Littlejohn, B. R. / Liu, J. C. / Liu, J. L. / Liu, J. X. / Lu, C. / Lu, H. Q. / Lu, X. / Luk, K. B. / Ma, B. Z. / Ma, X. B. / Ma, X. Y. / Ma, Y. Q. / Mandujano, R. C. / Maricic, J. / Marshall, C. / McDonald, K. T. / McKeown, R. D. / Mendenhall, M. P. / Meng, Y. / Meyer, A. M. / Milincic, R. / Mueller, P. E. / Mumm, H. P. / Napolitano, J. / Naumov, D. / Naumova, E. / Neilson, R. / Nguyen, T. M. T. / Nikkel, J. A. / Nour, S. / Ochoa-Ricoux, J. P. / Olshevskiy, A. / Palomino, J. L. / Pan, H. -R. / Park, J. / Patton, S. / Peng, J. C. / Pun, C. S. J. / Pushin, D. A. / Qi, F. Z. / Qi, M. / Qian, X. / Raper, N. / Ren, J. / Reveco, C. Morales / Rosero, R. / Roskovec, B. / Ruan, X. C. / Searles, M. / Steiner, H. / Sun, J. L. / Surukuchi, P. T. / Tmej, T. / Treskov, K. / Tse, W. -H. / Tull, C. E. / Tyra, M. A. / Varner, R. L. / Venegas-Vargas, D. / Viren, B. / Vorobel, V. / Wang, C. H. / Wang, J. / Wang, M. / Wang, N. Y. / Wang, R. G. / Wang, W. / Wang, X. / Wang, Y. / Wang, Y. F. / Wang, Z. / Wang, Z. M. / Weatherly, P. B. / Wei, H. Y. / Wei, L. H. / Wen, L. J. / Whisnant, K. / White, C. / Wilhelmi, J. / Wong, H. L. H. / Woolverton, A. / Worcester, E. / Wu, D. R. / Wu, F. L. / Wu, Q. / Wu, W. J. / Xia, D. M. / Xie, Z. Q. / Xing, Z. Z. / Xu, H. K. / Xu, J. L. / Xu, T. / Xue, T. / Yang, C. G. / Yang, L. / Yang, Y. Z. / Yao, H. F. / Ye, M. / Yeh, M. / Young, B. L. / Yu, H. Z. / Yu, Z. Y. / Yue, B. B. / Zavadskyi, V. / Zeng, S. / Zeng, Y. / Zhan, L. / Zhang, C. / Zhang, F. Y. / Zhang, H. H. / Zhang, J. W. / Zhang, Q. M. / Zhang, S. Q. / Zhang, X. / Zhang, X. T. / Zhang, Y. M. / Zhang, Y. X. / Zhang, Y. Y. / Zhang, Z. J. / Zhang, Z. P. / Zhang, Z. Y. / Zhao, J. / Zhao, R. Z. / Zhou, L. / Zhuang, H. L. / Zou, J. H.

    2021  

    Abstract: A joint determination of the reactor antineutrino spectra resulting from the fission of $^{235}$U and $^{239}$Pu has been carried out by the Daya Bay and PROSPECT collaborations. This Letter reports the level of consistency of $^{235}$U spectrum ... ...

    Abstract A joint determination of the reactor antineutrino spectra resulting from the fission of $^{235}$U and $^{239}$Pu has been carried out by the Daya Bay and PROSPECT collaborations. This Letter reports the level of consistency of $^{235}$U spectrum measurements from the two experiments and presents new results from a joint analysis of both data sets. The measurements are found to be consistent. The combined analysis reduces the degeneracy between the dominant $^{235}$U and $^{239}$Pu isotopes and improves the uncertainty of the $^{235}$U spectral shape to about 3\%. The ${}^{235}$U and $^{239}$Pu antineutrino energy spectra are unfolded from the jointly deconvolved reactor spectra using the Wiener-SVD unfolding method, providing a data-based reference for other reactor antineutrino experiments and other applications. This is the first measurement of the $^{235}$U and $^{239}$Pu spectra based on the combination of experiments at low- and highly enriched uranium reactors.

    Comment: 8 pages, 5 figures, Supplementary Material Included
    Keywords Nuclear Experiment ; High Energy Physics - Experiment
    Subject code 660
    Publishing date 2021-06-23
    Publishing country us
    Document type Book ; Online
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  8. Book ; Online: Optimization of the JUNO liquid scintillator composition using a Daya Bay antineutrino detector

    Bay, Daya / collaborations, JUNO / : / Abusleme, A. / Adam, T. / Ahmad, S. / Aiello, S. / Akram, M. / Ali, N. / An, F. P. / An, G. P. / An, Q. / Andronico, G. / Anfimov, N. / Antonelli, V. / Antoshkina, T. / Asavapibhop, B. / de André, J. P. A. M. / Babic, A. /
    Balantekin, A. B. / Baldini, W. / Baldoncini, M. / Band, H. R. / Barresi, A. / Baussan, E. / Bellato, M. / Bernieri, E. / Biare, D. / Birkenfeld, T. / Bishai, M. / Blin, S. / Blum, D. / Blyth, S. / Bordereau, C. / Brigatti, A. / Brugnera, R. / Budano, A. / Burgbacher, P. / Buscemi, M. / Bussino, S. / Busto, J. / Butorov, I. / Cabrera, A. / Cai, H. / Cai, X. / Cai, Y. K. / Cai, Z. Y. / Cammi, A. / Campeny, A. / Cao, C. Y. / Cao, G. F. / Cao, J. / Caruso, R. / Cerna, C. / Chakaberia, I. / Chang, J. F. / Chang, Y. / Chen, H. S. / Chen, P. A. / Chen, P. P. / Chen, S. M. / Chen, S. J. / Chen, X. R. / Chen, Y. W. / Chen, Y. X. / Chen, Y. / Chen, Z. / Cheng, J. / Cheng, Y. P. / Cheng, Z. K. / Chepurnov, A. / Cherwinka, J. J. / Chiarello, F. / Chiesa, D. / Chimenti, P. / Chu, M. C. / Chukanov, A. / Chuvashova, A. / Clementi, . / Clerbaux, B. / Di Lorenzo, S. Conforti / Corti, D. / Costa, S. / Corso, F. D. / Cummings, J. P. / Dalager, O. / De La Taille, C. / Deng, F. S. / Deng, J. W. / Deng, Z. / Deng, Z. Y. / Depnering, W. / Diaz, M. / Ding, X. F. / Ding, Y. Y. / Dirgantara, B. / Dmitrievsky, S. / Diwan, M. V. / Dohnal, T. / Donchenko, G. / Dong, J. M. / Dornic, D. / Doroshkevich, E. / Dove, J. / Dracos, M. / Druillole, F. / Du, S. X. / Dusini, S. / Dvorak, M. / Dwyer, D. A. / Enqvist, T. / Enzmann, H. / Fabbri, A. / Fajt, L. / Fan, D. H. / Fan, L. / Fang, C. / Fang, J. / Fatkina, A. / Fedoseev, D. / Fekete, V. / Feng, L. C. / Feng, Q. C. / Fiorentini, G. / Ford, R. / Formozov, A. / Fournier, A. / Franke, S. / Gallo, J. P. / Gan, H. N. / Gao, F. / Garfagnini, A. / Göttel, A. / Genster, C. / Giammarchi, M. / Giaz, A. / Giudice, N. / Giuliani, F. / Gonchar, M. / Gong, G. H. / Gong, H. / Gorchakov, O. / Gornushkin, Y. / Grassi, M. / Grewing, C. / Gromov, M. / Gromov, V. / Gu, M. H. / Gu, W. Q. / Gu, X. F. / Gu, Y. / Guan, M. Y. / Guardone, N. / Gul, M. / Guo, C. / Guo, J. Y. / Guo, L. / Guo, W. L. / Guo, X. H. / Guo, Y. H. / Guo, Z. / Haacke, M. / Hackenburg, R. W. / Hackspacher, P. / Hagner, C. / Han, R. / Han, Y. / Hans, S. / He, M. / He, W. / Heeger, K. M. / Heinz, T. / Heng, Y. K. / Herrera, R. / Higuera, A. / Hong, D. J. / Hor, Y. K. / Hou, S. J. / Hsiung, Y. B. / Hu, B. Z. / Hu, H. / Hu, J. R. / Hu, J. / Hu, S. Y. / Hu, T. / Hu, Z. J. / Huang, C. H. / Huang, G. H. / Huang, H. X. / Huang, Q. H. / Huang, W. H. / Huang, X. T. / Huang, Y. B. / Huber, P. / Hui, J. Q. / Huo, L. / Huo, W. J. / Huss, C. / Hussain, S. / Insolia, A. / Ioannisian, A. / Ioannisyan, D. / Isocrate, R. / Jaffe, D. E. / Jen, K. L. / Ji, X. L. / Ji, X. P. / Ji, X. Z. / Jia, H. H. / Jia, J. J. / Jian, S. Y. / Jiang, D. / Jiang, X. S. / Jin, R. Y. / Jing, X. P. / Johnson, R. A. / Jollet, C. / Jones, D. / Joutsenvaara, J. / Jungthawan, S. / Kalousis, L. / Kampmann, P. / Kang, L. / Karagounis, M. / Kazarian, N. / Kettell, S. H. / Khan, A. / Khan, W. / Khosonthongkee, K. / Kinz, P. / Kohn, S. / Korablev, D. / Kouzakov, K. / Kramer, M. / Krasnoperov, A. / Krokhaleva, S. / Krumshteyn, Z. / Kruth, A. / Kutovskiy, N. / Kuusiniemi, P. / Lachacinski, B. / Lachenmaier, T. / Langford, T. J. / Lee, J. / Lee, J. H. C. / Lefevre, F. / Lei, L. / Lei, R. / Leitner, R. / Leung, J. / Li, C. / Li, D. M. / Li, F. / Li, H. T. / Li, H. L. / Li, J. / Li, J. J. / Li, J. Q. / Li, K. J. / Li, M. Z. / Li, N. / Li, Q. J. / Li, R. H. / Li, S. C. / Li, S. F. / Li, S. J. / Li, T. / Li, W. D. / Li, W. G. / Li, X. M. / Li, X. N. / Li, X. L. / Li, X. Q. / Li, Y. / Li, Y. F. / Li, Z. B. / Li, Z. Y. / Liang, H. / Liang, J. J. / Liebau, D. / Limphirat, A. / Limpijumnong, S. / Lin, C. J. / Lin, G. L. / Lin, S. X. / Lin, T. / Lin, Y. H. / Ling, J. J. / Link, J. M. / Lippi, I. / Littenberg, L. / Littlejohn, B. R. / Liu, F. / Liu, H. / Liu, H. B. / Liu, H. D. / Liu, H. J. / Liu, H. T. / Liu, J. C. / Liu, J. L. / Liu, M. / Liu, Q. / Liu, R. X. / Liu, S. Y. / Liu, S. B. / Liu, S. L. / Liu, X. W. / Liu, Y. / Lokhov, A. / Lombardi, P. / Loo, K. / Lorenz, S. / Lu, C. / Lu, H. Q. / Lu, J. B. / Lu, J. G. / Lu, S. X. / Lu, X. X. / Lubsandorzhiev, B. / Lubsandorzhiev, S. / Ludhova, L. / Luk, K. B. / Luo, F. J. / Luo, G. / Luo, P. W. / Luo, S. / Luo, W. M. / Lyashuk, V. / Ma, Q. M. / Ma, S. / Ma, X. B. / Ma, X. Y. / Ma, Y. Q. / Malyshkin, Y. / Mantovani, F. / Mao, Y. J. / Mari, S. M. / Marini, F. / Marium, S. / Marshall, C. / Martellini, C. / Martin-Chassard, G. / Caicedo, D. A. Martinez / Martini, A. / Martino, J. / Mayilyan, D. / McDonald, K. T. / McKeown, R. D. / Müller, A. / Meng, G. / Meng, Y. / Meregaglia, A. / Meroni, E. / Meyhöfer, D. / Mezzetto, M. / Miller, J. / Miramonti, L. / Monforte, S. / Montini, P. / Montuschi, M. / Morozov, N. / Muralidharan, P. / Napolitano, J. / Nastasi, M. / Naumov, D. V. / Naumova, E. / Nemchenok, I. / Nikolaev, A. / Ning, F. P. / Ning, Z. / Nunokawa, H. / Oberauer, L. / Ochoa-Ricoux, J. P. / Olshevskiy, A. / Ortica, F. / Pan, H. R. / Paoloni, A. / Park, J. / Parkalian, N. / Parmeggiano, S. / Patton, S. / Payupol, T. / Pec, V. / Pedretti, D. / Pei, Y. T. / Pelliccia, N. / Peng, A. G. / Peng, H. P. / Peng, J. C. / Perrot, F. / Petitjean, P. A. / Rico, L. F. Pineres / Popov, A. / Poussot, P. / Pratumwan, W. / Previtali, E. / Pun, C. S. J. / Qi, F. Z. / Qi, M. / Qian, S. / Qian, X. / Qian, X. H. / Qiao, H. / Qin, Z. H. / Qiu, S. K. / Rajput, M. / Ranucci, G. / Raper, N. / Re, A. / Rebber, H. / Rebii, A. / Ren, B. / Ren, J. / Reveco, C. M. / Rezinko, T. / Ricci, B. / Robens, M. / Roche, M. / Rodphai, N. / Rohwer, L. / Romani, A. / Rosero, R. / Roskovec, B. / Roth, C. / Ruan, X. C. / Ruan, X. D. / Rujirawat, S. / Rybnikov, A. / Sadovsky, A. / Saggese, P. / Salamanna, G. / Sangka, A. / Sanguansak, N. / Sawangwit, U. / Sawatzki, J. / Sawy, F. / Schever, M. / Schuler, J. / Schwab, C. / Schweizer, K. / Selivanov, D. / Selyunin, A. / Serafini, A. / Settanta, G. / Settimo, M. / Shahzad, M. / Shi, G. / Shi, J. Y. / Shi, Y. J. / Shutov, V. / Sidorenkov, A. / Simkovic, F. / Sirignano, C. / Siripak, J. / Sisti, M. / Slupecki, M. / Smirnov, M. / Smirnov, O. / Sogo-Bezerra, T. / Songwadhana, J. / Soonthornthum, B. / Sotnikov, A. / Sramek, O. / Sreethawong, W. / Stahl, A. / Stanco, L. / Stankevich, K. / Stefanik, D. / Steiger, H. / Steiner, H. / Steinmann, J. / Stender, M. / Strati, V. / Studenikin, A. / Sun, G. X. / Sun, L. T. / Sun, J. L. / Sun, S. F. / Sun, X. L. / Sun, Y. J. / Sun, Y. Z. / Suwonjandee, N. / Szelezniak, M. / Tang, J. / Tang, Q. / Tang, X. / Tietzsch, A. / Tkachev, I. / Tmej, T. / Treskov, K. / Troni, G. / Trzaska, W. / Tse, W. -H. / Tull, C. E. / Tuve, C. / van Waasen, S. / Boom, J. Vanden / Vassilopoulos, N. / Vedin, V. / Verde, G. / Vialkov, M. / Viaud, B. / Viren, B. / Volpe, C. / Vorobel, V. / Votano, L. / Walker, P. / Wang, C. / Wang, C. H. / Wang, E. / Wang, G. L. / Wang, J. / Wang, K. Y. / Wang, L. / Wang, M. F. / Wang, M. / Wang, N. Y. / Wang, R. G. / Wang, S. G. / Wang, W. / Wang, W. S. / Wang, X. / Wang, X. Y. / Wang, Y. / Wang, Y. F. / Wang, Y. G. / Wang, Y. M. / Wang, Y. Q. / Wang, Z. / Wang, Z. M. / Wang, Z. Y. / Watcharangkool, A. / Wei, H. Y. / Wei, L. H. / Wei, W. / Wei, Y. D. / Wen, L. J. / Whisnant, K. / White, C. G. / Wiebusch, C. / Wong, S. C. F. / Wong, H. L. H. / Wonsak, B. / Worcester, E. / Wu, C. H. / Wu, D. R. / Wu, F. L. / Wu, Q. / Wu, W. J. / Wu, Z. / Wurm, M. / Wurtz, J. / Wysotzki, C. / Xi, Y. F. / Xia, D. M. / Xie, Y. G. / Xie, Z. Q. / Xing, Z. Z. / Xu, D. L. / Xu, F. R. / Xu, H. K. / Xu, J. L. / Xu, J. / Xu, M. H. / Xu, T. / Xu, Y. / Xue, T. / Yan, B. J. / Yan, X. B. / Yan, Y. P. / Yang, A. B. / Yang, C. G. / Yang, H. / Yang, J. / Yang, L. / Yang, X. Y. / Yang, Y. F. / Yang, Y. Z. / Yao, H. F. / Yasin, Z. / Ye, J. X. / Ye, M. / Yegin, U. / Yeh, M. / Yermia, F. / Yi, P. H. / You, Z. Y. / Young, B. L. / Yu, B. X. / Yu, C. X. / Yu, C. Y. / Yu, H. Z. / Yu, M. / Yu, X. H. / Yu, Z. Y. / Yuan, C. Z. / Yuan, Y. / Yuan, Z. X. / Yuan, Z. Y. / Yue, B. B. / Zafar, N. / Zambanini, A. / Zeng, P. / Zeng, S. / Zeng, T. X. / Zeng, Y. D. / Zhan, L. / Zhang, C. / Zhang, F. Y. / Zhang, G. Q. / Zhang, H. H. / Zhang, H. Q. / Zhang, J. / Zhang, J. B. / Zhang, J. W. / Zhang, P. / Zhang, Q. M. / Zhang, T. / Zhang, X. M. / Zhang, X. T. / Zhang, Y. / Zhang, Y. H. / Zhang, Y. M. / Zhang, Y. P. / Zhang, Y. X. / Zhang, Y. Y. / Zhang, Z. J. / Zhang, Z. P. / Zhang, Z. Y. / Zhao, F. Y. / Zhao, J. / Zhao, R. / Zhao, S. J. / Zhao, T. C. / Zheng, D. Q. / Zheng, H. / Zheng, M. S. / Zheng, Y. H. / Zhong, W. R. / Zhou, J. / Zhou, L. / Zhou, N. / Zhou, S. / Zhou, X. / Zhu, J. / Zhu, K. J. / Zhuang, H. L. / Zong, L. / Zou, J. H.

    2020  

    Abstract: To maximize the light yield of the liquid scintillator (LS) for the Jiangmen Underground Neutrino Observatory (JUNO), a 20 t LS sample was produced in a pilot plant at Daya Bay. The optical properties of the new LS in various compositions were studied by ...

    Abstract To maximize the light yield of the liquid scintillator (LS) for the Jiangmen Underground Neutrino Observatory (JUNO), a 20 t LS sample was produced in a pilot plant at Daya Bay. The optical properties of the new LS in various compositions were studied by replacing the gadolinium-loaded LS in one antineutrino detector. The concentrations of the fluor, PPO, and the wavelength shifter, bis-MSB, were increased in 12 steps from 0.5 g/L and <0.01 mg/L to 4 g/L and 13 mg/L, respectively. The numbers of total detected photoelectrons suggest that, with the optically purified solvent, the bis-MSB concentration does not need to be more than 4 mg/L. To bridge the one order of magnitude in the detector size difference between Daya Bay and JUNO, the Daya Bay data were used to tune the parameters of a newly developed optical model. Then, the model and tuned parameters were used in the JUNO simulation. This enabled to determine the optimal composition for the JUNO LS: purified solvent LAB with 2.5 g/L PPO, and 1 to 4 mg/L bis-MSB.

    Comment: 13 pages, 8 figures
    Keywords Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
    Subject code 660
    Publishing date 2020-07-01
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Book ; Online: TAO Conceptual Design Report

    JUNO Collaboration / Abusleme, Angel / Adam, Thomas / Ahmad, Shakeel / Aiello, Sebastiano / Akram, Muhammad / Ali, Nawab / An, Fengpeng / An, Guangpeng / An, Qi / Andronico, Giuseppe / Anfimov, Nikolay / Antonelli, Vito / Antoshkina, Tatiana / Asavapibhop, Burin / de André, João Pedro Athayde Marcondes / Auguste, Didier / Babic, Andrej / Baldini, Wander /
    Barresi, Andrea / Baussan, Eric / Bellato, Marco / Bergnoli, Antonio / Bernieri, Enrico / Biare, David / Birkenfeld, Thilo / Blin, Sylvie / Blum, David / Blyth, Simon / Bolshakova, Anastasia / Bongrand, Mathieu / Bordereau, Clément / Breton, Dominique / Brigatti, Augusto / Brugnera, Riccardo / Budano, Antonio / Buscemi, Mario / Busto, Jose / Butorov, Ilya / Cabrera, Anatael / Cai, Hao / Cai, Xiao / Cai, Yanke / Cai, Zhiyan / Cammi, Antonio / Campeny, Agustin / Cao, Chuanya / Cao, Guofu / Cao, Jun / Caruso, Rossella / Cerna, Cédric / Chakaberia, Irakli / Chang, Jinfan / Chang, Yun / Chen, Pingping / Chen, Po-An / Chen, Shaomin / Chen, Shenjian / Chen, Xurong / Chen, Yi-Wen / Chen, Yixue / Chen, Yu / Chen, Zhang / Cheng, Jie / Cheng, Yaping / Chepurnov, Alexander / Chiesa, Davide / Chimenti, Pietro / Chukanov, Artem / Chuvashova, Anna / Claverie, Gérard / Clementi, Catia / Clerbaux, Barbara / Di Lorenzo, Selma Conforti / Corti, Daniele / Costa, Salvatore / Corso, Flavio Dal / De La Taille, Christophe / Deng, Jiawei / Deng, Zhi / Deng, Ziyan / Depnering, Wilfried / Diaz, Marco / Ding, Xuefeng / Ding, Yayun / Dirgantara, Bayu / Dmitrievsky, Sergey / Dohnal, Tadeas / Donchenko, Georgy / Dong, Jianmeng / Dornic, Damien / Doroshkevich, Evgeny / Dracos, Marcos / Druillole, Frédéric / Du, Shuxian / Dusini, Stefano / Dvorak, Martin / Enqvist, Timo / Enzmann, Heike / Fabbri, Andrea / Fajt, Lukas / Fan, Donghua / Fan, Lei / Fang, Can / Fang, Jian / Fatkina, Anna / Fedoseev, Dmitry / Fekete, Vladko / Feng, Li-Cheng / Feng, Qichun / Ford, Richard / Formozov, Andrey / Fournier, Amélie / Gan, Haonan / Gao, Feng / Garfagnini, Alberto / Göttel, Alexandre / Genster, Christoph / Giammarchi, Marco / Giaz, Agnese / Giudice, Nunzio / Giuliani, Franco / Gonchar, Maxim / Gong, Guanghua / Gong, Hui / Gorchakov, Oleg / Gornushkin, Yuri / Grassi, Marco / Grewing, Christian / Gromov, Maxim / Gromov, Vasily / Gu, Minghao / Gu, Xiaofei / Gu, Yu / Guan, Mengyun / Guardone, Nunzio / Gul, Maria / Guo, Cong / Guo, Jingyuan / Guo, Wanlei / Guo, Xinheng / Guo, Yuhang / Haacke, Michael / Hackspacher, Paul / Hagner, Caren / Han, Ran / Han, Yang / He, Miao / He, Wei / Heinz, Tobias / Hellmuth, Patrick / Heng, Yuekun / Herrera, Rafael / Hong, Daojin / Hou, Shaojing / Hsiung, Yee / Hu, Bei-Zhen / Hu, Hang / Hu, Jianrun / Hu, Jun / Hu, Shouyang / Hu, Tao / Hu, Zhuojun / Huang, Chunhao / Huang, Guihong / Huang, Hanxiong / Huang, Qinhua / Huang, Wenhao / Huang, Xingtao / Huang, Yongbo / Hui, Jiaqi / Huo, Lei / Huo, Wenju / Huss, Cédric / Hussain, Safeer / Insolia, Antonio / Ioannisian, Ara / Isocrate, Roberto / Jen, Kuo-Lun / Ji, Xiaolu / Ji, Xingzhao / Jia, Huihui / Jia, Junji / Jian, Siyu / Jiang, Di / Jiang, Xiaoshan / Jin, Ruyi / Jing, Xiaoping / Jollet, Cécile / Joutsenvaara, Jari / Jungthawan, Sirichok / Kalousis, Leonidas / Kampmann, Philipp / Kang, Li / Karagounis, Michael / Kazarian, Narine / Khan, Amir / Khan, Waseem / Khosonthongkee, Khanchai / Kinz, Patrick / Korablev, Denis / Kouzakov, Konstantin / Krasnoperov, Alexey / Krokhaleva, Svetlana / Krumshteyn, Zinovy / Kruth, Andre / Kutovskiy, Nikolay / Kuusiniemi, Pasi / Lachenmaier, Tobias / Landini, Cecilia / Leblanc, Sébastien / Lefevre, Frederic / Lei, Liping / Lei, Ruiting / Leitner, Rupert / Leung, Jason / Li, Chao / Li, Demin / Li, Fei / Li, Fule / Li, Haitao / Li, Huiling / Li, Jiaqi / Li, Jin / Li, Kaijie / Li, Mengzhao / Li, Nan / Li, Qingjiang / Li, Ruhui / Li, Shanfeng / Li, Shuaijie / Li, Tao / Li, Teng / Li, Weidong / Li, Weiguo / Li, Xiaomei / Li, Xiaonan / Li, Xinglong / Li, Yi / Li, Yufeng / Li, Zhibing / Li, Ziyuan / Liang, Hao / Liang, Jingjing / Liebau, Daniel / Limphirat, Ayut / Limpijumnong, Sukit / Lin, Guey-Lin / Lin, Shengxin / Lin, Tao / Ling, Jiajie / Lippi, Ivano / Liu, Fang / Liu, Haidong / Liu, Hongbang / Liu, Hongjuan / Liu, Hongtao / Liu, Hu / Liu, Hui / Liu, Jianglai / Liu, Jinchang / Liu, Min / Liu, Qian / Liu, Qin / Liu, Runxuan / Liu, Shuangyu / Liu, Shubin / Liu, Shulin / Liu, Xiaowei / Liu, Yan / Lokhov, Alexey / Lombardi, Paolo / Lombardo, Claudio / Loo, Kai / Lu, Chuan / Lu, Haoqi / Lu, Jingbin / Lu, Junguang / Lu, Shuxiang / Lu, Xiaoxu / Lubsandorzhiev, Bayarto / Lubsandorzhiev, Sultim / Ludhova, Livia / Luo, Fengjiao / Luo, Guang / Luo, Pengwei / Luo, Shu / Luo, Wuming / Lyashuk, Vladimir / Ma, Qiumei / Ma, Si / Ma, Xiaoyan / Ma, Xubo / Maalmi, Jihane / Malyshkin, Yury / Mantovani, Fabio / Manzali, Francesco / Mao, Xin / Mao, Yajun / Mari, Stefano M. / Marini, Filippo / Marium, Sadia / Martellini, Cristina / Martin-Chassard, Gisele / Martini, Agnese / Mayilyan, Davit / Müller, Axel / Meng, Yue / Meregaglia, Anselmo / Meroni, Emanuela / Meyhöfer, David / Mezzetto, Mauro / Miller, Jonathan / Miramonti, Lino / Monforte, Salvatore / Montini, Paolo / Montuschi, Michele / Morozov, Nikolay / Muralidharan, Pavithra / Nastasi, Massimiliano / Naumov, Dmitry V. / Naumova, Elena / Nemchenok, Igor / Nikolaev, Alexey / Ning, Feipeng / Ning, Zhe / Nunokawa, Hiroshi / Oberauer, Lothar / Ochoa-Ricoux, Juan Pedro / Olshevskiy, Alexander / Orestano, Domizia / Ortica, Fausto / Pan, Hsiao-Ru / Paoloni, Alessandro / Parkalian, Nina / Parmeggiano, Sergio / Payupol, Teerapat / Pei, Yatian / Pelliccia, Nicomede / Peng, Anguo / Peng, Haiping / Perrot, Frédéric / Petitjean, Pierre-Alexandre / Petrucci, Fabrizio / Rico, Luis Felipe Piñeres / Popov, Artyom / Poussot, Pascal / Pratumwan, Wathan / Previtali, Ezio / Qi, Fazhi / Qi, Ming / Qian, Sen / Qian, Xiaohui / Qiao, Hao / Qin, Zhonghua / Qiu, Shoukang / Rajput, Muhammad / Ranucci, Gioacchino / Raper, Neill / Re, Alessandra / Rebber, Henning / Rebii, Abdel / Ren, Bin / Ren, Jie / Rezinko, Taras / Ricci, Barbara / Robens, Markus / Roche, Mathieu / Rodphai, Narongkiat / Romani, Aldo / Roskovec, Bedřich / Roth, Christian / Ruan, Xiangdong / Ruan, Xichao / Rujirawat, Saroj / Rybnikov, Arseniy / Sadovsky, Andrey / Saggese, Paolo / Salamanna, Giuseppe / Sanfilippo, Simone / Sangka, Anut / Sanguansak, Nuanwan / Sawangwit, Utane / Sawatzki, Julia / Sawy, Fatma / Schever, Michaela / Schuler, Jacky / Schwab, Cédric / Schweizer, Konstantin / Selivanov, Dmitry / Selyunin, Alexandr / Serafini, Andrea / Settanta, Giulio / Settimo, Mariangela / Shahzad, Muhammad / Shi, Gang / Shi, Jingyan / Shi, Yongjiu / Shutov, Vitaly / Sidorenkov, Andrey / Simkovic, Fedor / Sirignano, Chiara / Siripak, Jaruchit / Sisti, Monica / Slupecki, Maciej / Smirnov, Mikhail / Smirnov, Oleg / Sogo-Bezerra, Thiago / Songwadhana, Julanan / Soonthornthum, Boonrucksar / Sotnikov, Albert / Sramek, Ondrej / Sreethawong, Warintorn / Stahl, Achim / Stanco, Luca / Stankevich, Konstantin / Stefanik, Dus / Steiger, Hans / Steinmann, Jochen / Sterr, Tobias / Stock, Matthias Raphael / Strati, Virginia / Studenikin, Alexander / Sun, Gongxing / Sun, Shifeng / Sun, Xilei / Sun, Yongjie / Sun, Yongzhao / Suwonjandee, Narumon / Szelezniak, Michal / Tang, Jian / Tang, Qiang / Tang, Quan / Tang, Xiao / Tietzsch, Alexander / Tkachev, Igor / Tmej, Tomas / Treskov, Konstantin / Triossi, Andrea / Troni, Giancarlo / Trzaska, Wladyslaw / Tuve, Cristina / van Waasen, Stefan / Boom, Johannes Vanden / Vanroyen, Guillaume / Vassilopoulos, Nikolaos / Vedin, Vadim / Verde, Giuseppe / Vialkov, Maxim / Viaud, Benoit / Volpe, Cristina / Vorobel, Vit / Votano, Lucia / Walker, Pablo / Wang, Caishen / Wang, Chung-Hsiang / Wang, En / Wang, Guoli / Wang, Jian / Wang, Jun / Wang, Kunyu / Wang, Lu / Wang, Meifen / Wang, Meng / Wang, Ruiguang / Wang, Siguang / Wang, Wei / Wang, Wenshuai / Wang, Xi / Wang, Xiangyue / Wang, Yangfu / Wang, Yaoguang / Wang, Yi / Wang, Yifang / Wang, Yuanqing / Wang, Yuman / Wang, Zhe / Wang, Zheng / Wang, Zhimin / Wang, Zongyi / Watcharangkool, Apimook / Wei, Lianghong / Wei, Wei / Wei, Yadong / Wen, Liangjian / Wiebusch, Christopher / Wong, Steven Chan-Fai / Wonsak, Bjoern / Wu, Diru / Wu, Fangliang / Wu, Qun / Wu, Wenjie / Wu, Zhi / Wurm, Michael / Wurtz, Jacques / Wysotzki, Christian / Xi, Yufei / Xia, Dongmei / Xie, Yuguang / Xie, Zhangquan / Xing, Zhizhong / Xu, Benda / Xu, Donglian / Xu, Fanrong / Xu, Jilei / Xu, Jing / Xu, Meihang / Xu, Yin / Xu, Yu / Yan, Baojun / Yan, Xiongbo / Yan, Yupeng / Yang, Anbo / Yang, Changgen / Yang, Huan / Yang, Jie / Yang, Lei / Yang, Xiaoyu / Yang, Yifan / Yao, Haifeng / Yasin, Zafar / Ye, Jiaxuan / Ye, Mei / Yegin, Ugur / Yermia, Frédéric / Yi, Peihuai / Yin, Xiangwei / You, Zhengyun / Yu, Boxiang / Yu, Chiye / Yu, Chunxu / Yu, Hongzhao / Yu, Miao / Yu, Xianghui / Yu, Zeyuan / Yuan, Chengzhuo / Yuan, Ying / Yuan, Zhenxiong / Yuan, Ziyi / Yue, Baobiao / Zafar, Noman / Zambanini, Andre / Zeng, Pan / Zeng, Shan / Zeng, Tingxuan / Zeng, Yuda / Zhan, Liang / Zhang, Feiyang / Zhang, Guoqing / Zhang, Haiqiong / Zhang, Honghao / Zhang, Jiawen / Zhang, Jie / Zhang, Jingbo / Zhang, Peng / Zhang, Qingmin / Zhang, Shiqi / Zhang, Tao / Zhang, Xiaomei / Zhang, Xuantong / Zhang, Yan / Zhang, Yinhong / Zhang, Yiyu / Zhang, Yongpeng / Zhang, Yuanyuan / Zhang, Yumei / Zhang, Zhenyu / Zhang, Zhijian / Zhao, Fengyi / Zhao, Jie / Zhao, Rong / Zhao, Shujun / Zhao, Tianchi / Zheng, Dongqin / Zheng, Hua / Zheng, Minshan / Zheng, Yangheng / Zhong, Weirong / Zhou, Jing / Zhou, Li / Zhou, Nan / Zhou, Shun / Zhou, Xiang / Zhu, Jiang / Zhu, Kejun / Zhuang, Honglin / Zong, Liang / Zou, Jiaheng

    A Precision Measurement of the Reactor Antineutrino Spectrum with Sub-percent Energy Resolution

    2020  

    Abstract: The Taishan Antineutrino Observatory (TAO, also known as JUNO-TAO) is a satellite experiment of the Jiangmen Underground Neutrino Observatory (JUNO). A ton-level liquid scintillator detector will be placed at about 30 m from a core of the Taishan Nuclear ...

    Abstract The Taishan Antineutrino Observatory (TAO, also known as JUNO-TAO) is a satellite experiment of the Jiangmen Underground Neutrino Observatory (JUNO). A ton-level liquid scintillator detector will be placed at about 30 m from a core of the Taishan Nuclear Power Plant. The reactor antineutrino spectrum will be measured with sub-percent energy resolution, to provide a reference spectrum for future reactor neutrino experiments, and to provide a benchmark measurement to test nuclear databases. A spherical acrylic vessel containing 2.8 ton gadolinium-doped liquid scintillator will be viewed by 10 m^2 Silicon Photomultipliers (SiPMs) of >50% photon detection efficiency with almost full coverage. The photoelectron yield is about 4500 per MeV, an order higher than any existing large-scale liquid scintillator detectors. The detector operates at -50 degree C to lower the dark noise of SiPMs to an acceptable level. The detector will measure about 2000 reactor antineutrinos per day, and is designed to be well shielded from cosmogenic backgrounds and ambient radioactivities to have about 10% background-to-signal ratio. The experiment is expected to start operation in 2022.

    Comment: 134 pages, 114 figures
    Keywords Physics - Instrumentation and Detectors ; High Energy Physics - Experiment ; Nuclear Experiment
    Subject code 660
    Publishing date 2020-05-18
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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