Joint Determination of Reactor Antineutrino Spectra from 235U and 239Pu Fission by Daya Bay and PROSPECT

被引:16
作者
An, F. P. [1 ]
Andriamirado, M. [2 ]
Balantekin, A. B. [3 ]
Band, H. R. [4 ]
Bass, C. D. [5 ]
Bergeron, D. E. [6 ]
Berish, D. [7 ]
Bishai, M. [8 ]
Blyth, S. [9 ]
Bowden, N. S. [10 ]
Bryan, C. D. [11 ]
Cao, G. F. [12 ]
Cao, J. [12 ]
Chang, J. F. [12 ]
Chang, Y. [13 ]
Chen, H. S. [12 ]
Chen, S. M. [14 ]
Chen, Y. [15 ,16 ]
Chen, Y. X. [17 ]
Cheng, J. [12 ]
Cheng, Z. K. [16 ]
Cherwinka, J. J. [3 ]
Chu, M. C. [18 ]
Classen, T. [10 ]
Conant, A. J. [11 ]
Cummings, J. P. [19 ]
Dalager, O. [20 ]
Deichert, G. [11 ]
Delgado, A. [21 ,22 ]
Deng, F. S. [23 ]
Ding, Y. Y. [12 ]
Diwan, M., V [8 ]
Dohnal, T. [24 ]
Dolinski, M. J. [25 ]
Dolzhikov, D. [26 ]
Dove, J. [27 ]
Dwyer, D. A. [28 ]
Erickson, A. [29 ]
Foust, B. T. [4 ]
Gaison, J. K. [4 ]
Galindo-Uribarri, A. [21 ,22 ]
Gallo, J. P. [2 ]
Gilbert, C. E. [21 ,22 ]
Gonchar, M. [26 ]
Gong, G. H. [14 ]
Gong, H. [14 ]
Grassi, M. [20 ]
Gu, W. Q. [8 ]
Guo, J. Y. [16 ]
Guo, L. [14 ]
机构
[1] East China Univ Sci & Technol, Inst Modern Phys, Shanghai, Peoples R China
[2] IIT, Dept Phys, Chicago, IL 60616 USA
[3] Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA
[4] Yale Univ, Dept Phys, Wright Lab, New Haven, CT USA
[5] Le Moyne Coll, Dept Phys, Syracuse, NY USA
[6] NIST, Gaithersburg, MD 20899 USA
[7] Temple Univ, Dept Phys, Philadelphia, PA 19122 USA
[8] Brookhaven Natl Lab, Upton, NY 11973 USA
[9] Natl Taiwan Univ, Dept Phys, Taipei, Taiwan
[10] Lawrence Livermore Natl Lab, Nucl & Chem Sci Div, Livermore, CA 94550 USA
[11] Oak Ridge Natl Lab, High Flux Isotope Reactor, Oak Ridge, TN USA
[12] Inst High Energy Phys, Beijing, Peoples R China
[13] Natl United Univ, Miaoli, Taiwan
[14] Tsinghua Univ, Dept Engn Phys, Beijing, Peoples R China
[15] Shenzhen Univ, Shenzhen, Peoples R China
[16] Sun Yat Sen Zhongshan Univ, Guangzhou, Peoples R China
[17] North China Elect Power Univ, Beijing, Peoples R China
[18] Chinese Univ Hong Kong, Hong Kong, Peoples R China
[19] Siena Coll, Loudonville, NY 12211 USA
[20] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
[21] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA
[22] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA
[23] Univ Sci & Technol China, Hefei, Peoples R China
[24] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic
[25] Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA
[26] Joint Inst Nucl Res, Dubna, Moscow Region, Russia
[27] Univ Illinois, Dept Phys, Urbana, IL 61801 USA
[28] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
[29] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA
[30] Beijing Normal Univ, Beijing, Peoples R China
[31] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Dept Nucl Sci & Technol, Xian, Peoples R China
[32] China Inst Atom Energy, Beijing, Peoples R China
[33] Shandong Univ, Jinan, Peoples R China
[34] Guangxi Univ, 100 Daxue East Rd, Nanning, Peoples R China
[35] Virginia Tech, Ctr Neutrino Phys, Blacksburg, VA 24061 USA
[36] Univ Hawaii, Dept Phys & Astron, Honolulu, HI 96822 USA
[37] Natl Chiao Tung Univ, Inst Phys, Hsinchu, Taiwan
[38] Univ Cincinnati, Dept Phys, Cincinnati, OH 45221 USA
[39] Dongguan Univ Technol, Dongguan, Peoples R China
[40] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[41] Univ Hong Kong, Dept Phys, Pokfulam, Hong Kong, Peoples R China
[42] Nankai Univ, Sch Phys, Tianjin, Peoples R China
[43] Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai Lab Particle Phys & Cosmol, Shanghai, Peoples R China
[44] Princeton Univ, Joseph Henry Labs, Princeton, NJ 08544 USA
[45] CALTECH, Pasadena, CA 91125 USA
[46] Coll William & Mary, Williamsburg, VA 23187 USA
[47] Univ Waterloo, Inst Quantum Comp, Waterloo, ON, Canada
[48] Univ Waterloo, Dept Phys & Astron, Waterloo, ON, Canada
[49] Nanjing Univ, Nanjing, Peoples R China
[50] China Gen Nucl Power Grp, Shenzhen, Peoples R China
基金
中国国家自然科学基金; 加拿大自然科学与工程研究理事会; 美国国家科学基金会;
关键词
NEUTRINO; SCATTERING; PRODUCTS; SEARCH;
D O I
10.1103/PhysRevLett.128.081801
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A joint determination of the reactor antineutrino spectra resulting from the fission of U-235 and Pu-239 has been carried out by the Daya Bay and PROSPECT Collaborations. This Letter reports the level of consistency of U-235 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 U-235 and Pu-239 isotopes and improves the uncertainty of the U-235 spectral shape to about 3%. The U-235 and Pu-239 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 U-235 and Pu-239 spectra based on the combination of experiments at low-and highly enriched uranium reactors.
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页数:8
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