Analytical approximations for matter effects on CP violation in the accelerator-based neutrino oscillations with E less than or similar to 1 GeV
Xing ZZ(邢志忠); Zhu JY(朱景宇); Xing, ZZ; Zhu, JY
刊名JOURNAL OF HIGH ENERGY PHYSICS
2016
期号7
关键词CP violation Neutrino Physics
DOI10.1007/JHEP07(2016)011
通讯作者邢志忠 ; 朱景宇
文章类型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.
关键词[WOS]LEPTONIC UNITARITY TRIANGLES ; 3-NEUTRINO OSCILLATIONS ; MODEL ; MASS
语种英语
WOS记录号WOS:000379170300003
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260674
专题中国科学院高能物理研究所_理论物理室_期刊论文
作者单位中国科学院高能物理研究所
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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).
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