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Looking into analytical approximations for three-flavor neutrino oscillation probabilities in matter
Li YF(李玉峰); Zhou S(周顺); Zhu JY(朱景宇); Li, YF; Zhang, J; Zhou, S; Zhu, JY
2016
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
期号12页码:109
摘要Motivated by tremendous progress in neutrino oscillation experiments, we derive a new set of simple and compact formulas for three-flavor neutrino oscillation probabilities in matter of a constant density. A useful definition of the eta-gauge neutrino mass-squared difference Delta(*) equivalent to eta Delta(31) + (1 - eta)Delta(32) is introduced, where Delta(ji) equivalent to m (2)(j) - m(i)(2) for ji = 21, 31, 32 are the ordinary neutrino mass-squared differences and 0 <= eta <= 1 is a real and positive parameter. Expanding neutrino oscillation probabilities in terms of alpha equivalent to Delta(21) /Delta(*), we demonstrate that the analytical formulas can be remarkably simplified for eta = cos(2) theta(12), with theta(12) being the solar mixing angle. As a by-product, the mapping from neutrino oscillation parameters in vacuum to their counterparts in matter is obtained at the order of O(alpha(2)) Finally, we show that our approximate formulas are not only valid for an arbitrary neutrino energy and any baseline length, but also still maintaining a high level of accuracy.
关键词Neutrino Physics Solar and Atmospheric Neutrinos
DOI10.1007/JHEP12(2016)109
关键词[WOS]LEPTONIC UNITARITY TRIANGLES ; CP VIOLATION ; ATMOSPHERIC NEUTRINOS ; PARAMETRIC-RESONANCE ; T-VIOLATION ; MASS ; ENHANCEMENT ; MATRIX ; EARTH ; MODEL
WOS记录号WOS:000391823800001
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被引频次:1[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/311005/261017
专题实验物理中心
作者单位中国科学院高能物理研究所
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Li YF,Zhou S,Zhu JY,et al. Looking into analytical approximations for three-flavor neutrino oscillation probabilities in matter[J]. JOURNAL OF HIGH ENERGY PHYSICS,2016(12):109.
APA 李玉峰.,周顺.,朱景宇.,Li, YF.,Zhang, J.,...&Zhu, JY.(2016).Looking into analytical approximations for three-flavor neutrino oscillation probabilities in matter.JOURNAL OF HIGH ENERGY PHYSICS(12),109.
MLA 李玉峰,et al."Looking into analytical approximations for three-flavor neutrino oscillation probabilities in matter".JOURNAL OF HIGH ENERGY PHYSICS .12(2016):109.
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