Indirect unitarity violation entangled with matter effects in reactor antineutrino oscillations
文献类型：期刊论文
| 作者 | Xing, ZZ ; Xing ZZ(邢志忠); Li YF(李玉峰); Zhu, JY; Li, YF; Zhu JY(朱靖宇)
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| 刊名 | PHYSICS LETTERS B
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| 出版日期 | 2018 |
| 卷号 | 782页码:578-588 |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2018.05.079 |
| 文献子类 | Article |
| 英文摘要 | If finite but tiny masses of the three active neutrinos are generated via the canonical seesaw mechanism with three heavy sterile neutrinos, the 3 x3 Pontecorvo-Maki-Nakagawa-Sakata neutrino mixing matrix Vwill not be exactly unitary. This kind of indirect unitarity violation can be probed in a precision reactor antineutrino oscillation experiment, but it may be entangled with terrestrial matter effects as both of them are very small. We calculate the probability of (nu) over bar (e) -> (nu) over bar (e) oscillations in a good analytical approximation, and find that, besides the zero-distance effect, the effect of unitarity violation is always smaller than matter effects, and their entanglement does not appear until the next-to-leading-order oscillating terms are taken into account. Given a 20-kiloton JUNO-like liquid scintillator detector, we reaffirm that terrestrial matter effects should not be neglected but indirect unitarity violation makes no difference, and demonstrate that the experimental sensitivities to the neutrino mass ordering and a precision measurement of theta(12) and Delta(21) equivalent to m(2)(2) - m(1)(2) are robust. (C) 2018 The Author(s). Published by Elsevier B.V. |
| 电子版国际标准刊号 | 1873-2445 |
| WOS关键词 | NEUTRINOS |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000438486900086 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286122]  |
| 专题 | 高能物理研究所_实验物理中心 中国科学院高能物理研究所_中国散裂中子源 |
| 通讯作者 | Zhu JY(朱靖宇) |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Xing, ZZ,Xing ZZ,Li YF,et al. Indirect unitarity violation entangled with matter effects in reactor antineutrino oscillations[J]. PHYSICS LETTERS B,2018,782:578-588. |
| APA | Xing, ZZ,邢志忠,李玉峰,Zhu, JY,Li, YF,&朱靖宇.(2018).Indirect unitarity violation entangled with matter effects in reactor antineutrino oscillations.PHYSICS LETTERS B,782,578-588. |
| MLA | Xing, ZZ,et al."Indirect unitarity violation entangled with matter effects in reactor antineutrino oscillations".PHYSICS LETTERS B 782(2018):578-588. |
入库方式： OAI收割
来源：高能物理研究所
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