학술논문
Joint Determination of Reactor Antineutrino Spectra from U235 and Pu239 Fission by Daya Bay and PROSPECT
Document Type
article
Author
An, FP; Andriamirado, M; Balantekin, AB; Band, HR; Bass, CD; Bergeron, DE; Berish, D; Bishai, M; Blyth, S; Bowden, NS; Bryan, CD; Cao, GF; Cao, J; Chang, JF; Chang, Y; Chen, HS; Chen, SM; Chen, Y; Chen, YX; Cheng, J; Cheng, ZK; Cherwinka, JJ; Chu, MC; Classen, T; Conant, AJ; Cummings, JP; Dalager, O; Deichert, G; Delgado, A; Deng, FS; Ding, YY; Diwan, MV; Dohnal, T; Dolinski, MJ; Dolzhikov, D; Dove, J; Dvořák, M; Dwyer, DA; Erickson, A; Foust, BT; Gaison, JK; Galindo-Uribarri, A; Gallo, JP; Gilbert, CE; Gonchar, M; Gong, GH; Gong, H; Grassi, M; Gu, WQ; Guo, JY; Guo, L; Guo, XH; Guo, YH; Guo, Z; Hackenburg, RW; Hans, S; Hansell, AB; He, M; Heeger, KM; Heffron, B; Heng, YK; Hor, YK; Hsiung, YB; Hu, BZ; Hu, JR; Hu, T; Hu, ZJ; Huang, HX; Huang, JH; Huang, XT; Huang, YB; Huber, P; Koblanski, J; Jaffe, DE; Jayakumar, S; Jen, KL; Ji, XL; Ji, XP; Johnson, RA; Jones, DC; Kang, L; Kettell, SH; Kohn, S; Kramer, M; Kyzylova, O; Lane, CE; Langford, TJ; LaRosa, J; Lee, J; Lee, JHC; Lei, RT; Leitner, R; Leung, JKC; Li, F; Li, HL; Li, JJ; Li, QJ; Li, RH; Li, S; Li, SC
Source
Physical Review Letters. 128(8)
Subject
Language
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.