Analytical approximations for matter effects on CP violation in the accelerator-based neutrino oscillations with E less than or similar to 1 GeV
文献类型：期刊论文
| 作者 | Xing ZZ(邢志忠) ; Zhu JY(朱景宇); Xing, ZZ; Zhu, JY
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| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2016 |
| 期号 | 7 |
| 关键词 | CP violation Neutrino Physics |
| DOI | 10.1007/JHEP07(2016)011 |
| 通讯作者 | 邢志忠 ; 朱景宇 |
| 文献子类 | Article |
| 英文摘要 | Given an accelerator-based neutrino experiment with the beam energy E less than or similar to 1 GeV, we expand the probabilities of nu(mu) -> nu(e) and (nu) over bar (mu) -> (nu) over bar (e) oscillations in matter in terms of two small quantities Delta(21)/Delta(31) and A/Delta(31), where Delta(21) m(2)(2)-m(1)(2) and Delta(31) m(3)(2)-m(1)(2) are the neutrino mass-squared differences, and A measures the strength of terrestrial matter effects. Our analytical approximations are numerically more accurate than those made by Freund in this energy region, and thus they are particularly applicable for the study of leptonic CP violation in the low-energy MOMENT, ESS nu SM and T2K oscillation experiments. As a by-product, the new analytical approximations help us to easily understand why the matter-corrected Jarlskog parameter (J) over tilde peaks at the resonance energy E-* similar or equal to 0.14 GeV (or 0.12 GeV) for the normal (or inverted) neutrino mass hierarchy, and how the three Dirac unitarity triangles are deformed due to the terrestrial matter contamination. We also affirm that a medium-baseline neutrino oscillation experiment with the beam energy E lying in the E-* less than or similar to E less than or similar to 2E(*) range is capable of exploring leptonic CP violation with little matter-induced suppression. |
| WOS关键词 | LEPTONIC UNITARITY TRIANGLES ; 3-NEUTRINO OSCILLATIONS ; MODEL ; MASS |
| 语种 | 英语 |
| WOS记录号 | WOS:000379170300003 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/260674]  |
| 专题 | 高能物理研究所_理论物理室 |
| 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,Zhu JY,Xing, ZZ,et al. Analytical approximations for matter effects on CP violation in the accelerator-based neutrino oscillations with E less than or similar to 1 GeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2016(7). |
| APA | 邢志忠,朱景宇,Xing, ZZ,&Zhu, JY.(2016).Analytical approximations for matter effects on CP violation in the accelerator-based neutrino oscillations with E less than or similar to 1 GeV.JOURNAL OF HIGH ENERGY PHYSICS(7). |
| MLA | 邢志忠,et al."Analytical approximations for matter effects on CP violation in the accelerator-based neutrino oscillations with E less than or similar to 1 GeV".JOURNAL OF HIGH ENERGY PHYSICS .7(2016). |
入库方式： OAI收割
来源：高能物理研究所
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