Joint Determination of Reactor Antineutrino Spectra from U235 and Pu239 Fission by Daya Bay and PROSPECT

裂变核物理学谱线物理铀-238 铀-235 接头（建筑物）裂变产物产率钚同位素

作者

F P An,M Andriamirado,A B Balantekin,H R Band,C D Bass,D E Bergeron,D Berish,M Bishai,S Blyth,N S Bowden,C D Bryan,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,T Classen,A J Conant,J P Cummings,O Dalager,G Deichert,A Delgado,F S Deng,Y Y Ding,M V Diwan,T Dohnal,M J Dolinski,D Dolzhikov,J Dove,M Dvořák,D A Dwyer,A Erickson,B T Foust,J K Gaison,A Galindo-Uribarri,J P Gallo,C E Gilbert,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,A B Hansell,M He,K M Heeger,B Heffron,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,J Koblanski,D E Jaffe,S Jayakumar,K L Jen,X L Ji,X P Ji,R A Johnson,D C Jones,L Kang,S H Kettell,S Kohn,M Kramer,O Kyzylova,C E Lane,T J Langford,J LaRosa,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,X Lu,K B Luk,B Z Ma,X B Ma,X Y Ma,Y Q Ma,R C Mandujano,J Maricic,C Marshall,K T McDonald,R D McKeown,M P Mendenhall,Y Meng,A M Meyer,R Milincic,P E Mueller,H P Mumm,J Napolitano,D Naumov,E Naumova,R Neilson,T M T Nguyen,J A Nikkel,S Nour,J P Ochoa-Ricoux,A Olshevskiy,J L Palomino,H-R Pan,J Park,S Patton,J C Peng,C S J Pun,D A Pushin,F Z Qi,M Qi,X Qian,N Raper,J Ren,C Morales Reveco,R Rosero,B Roskovec,X C Ruan,M Searles,H Steiner,J L Sun,P T Surukuchi,T Tmej,K Treskov,W-H Tse,C E Tull,M A Tyra,R L Varner,D Venegas-Vargas,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,P B Weatherly,H Y Wei,L H Wei,L J Wen,K Whisnant,C White,J Wilhelmi,H L H Wong,A Woolverton,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 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

出处

期刊：Physical Review Letters [American Physical Society]
日期：2022-02-25 卷期号：128 (8)

链接

caltech.edu arxiv.orgdoi.org

标识

DOI：10.1103/physrevlett.128.081801

摘要

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.

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Joint Determination of Reactor Antineutrino Spectra from U235 and Pu239 Fission by Daya Bay and PROSPECT

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