https://scholars.lib.ntu.edu.tw/handle/123456789/606832
標題: | Antineutrino energy spectrum unfolding based on the Daya Bay measurement and its applications | 作者: | An F. P. et al. YEE HSIUNG |
關鍵字: | Application; Daya Bay; Energy spectrum; Reactor antineutrino; | 公開日期: | 2021 | 卷: | 45 | 期: | 7 | 來源出版物: | Chinese Physics C | 摘要: | 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. ? 2021 Institute of Physics Publishing. All rights reserved. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85110512081&doi=10.1088%2f1674-1137%2fabfc38&partnerID=40&md5=a80c8abf9f4c4e9bf2523daa97650c1f https://scholars.lib.ntu.edu.tw/handle/123456789/606832 |
ISSN: | 16741137 | DOI: | 10.1088/1674-1137/abfc38 |
顯示於: | 物理學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。