文献类型：期刊文献

英文题名：Investigation of antineutrino spectral anomaly with updated nuclear database

作者：Xubo, Ma[1]; Le, Yang[1]; Liang, Zhan[2]; Fengpeng, An[3]; Jun, Cao[2]

机构：[1] School of Nuclear Science and Engineering, North China Electric Power University, Beijing, China; [2] Institute of High Energy Physics, Beijing, China; [3] Institute of Modern Physics, East China University of Science and Technology, Shanghai, China

年份：2018

外文期刊名：arXiv

收录：EI(收录号：20200536730)

语种：英文

外文关键词：Atomic physics

摘要：Recently, three successful antineutrino experiments (Daya Bay, Double Chooz, and RENO) measured the neutrino mixing angle θ13; however, significant discrepancies were found, both in the absolute flux and spectral shape. In this study, the antineutrino spectra were calculated by using the updated nuclear structure library, and we found that the four isotopes antineutrino spectrum have all contribution to the 5–7 MeV bump with ENDF/B-VII.1 fission yield. The bump can be explained well using the updated library and more important isotopes contribution to the bump were also given. In the last, the fission yield correlation coefficient between the four isotopes were discussed, and found that the correlation coefficients are very large. Copyright ? 2018, The Authors. All rights reserved.