A generic diagonalization of the 3 x 3 neutrino mass matrix and its implications on the mu-tau flavor symmetry and maximal CP violation
Xing ZZ(邢志忠); Zhou YL(周也铃); Xing, ZZ; Zhou, YL
刊名PHYSICS LETTERS B
2010
卷号693期号:5页码:584-590
关键词Neutrino mixing Diagonalization mu-tau symmetry Matter effects
学科分类Physics
DOI10.1016/j.physletb.2010.09.020
通讯作者[Xing, Zhi-zhong ; Zhou, Ye-Ling] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
文章类型Article
英文摘要In the flavor basis where the mass eigenstates of three charged leptons are identified with their flavor eigenstates, one may diagonalize a 3 x 3 Majorana neutrino mass matrix M-v by means of the standard parametrization of the 3 x 3 neutrino mixing matrix V. In this treatment the unphysical phases of M-v have to be carefully factored out, unless a special phase convention for neutrino fields is chosen so as to simplify M-v to M-v' without any unphysical phases. We choose this special flavor basis and establish some exact analytical relations between the matrix elements of M-v'M-v'(dagger) and seven physical parameters three neutrino masses (m(1), m(2), m(3)), three flavor mixing angles (theta(12), theta(13), theta(23)) and the Dirac CP-violating phase (delta). Such results allow us to derive the conditions for the mu-tau flavor symmetry with theta(23) = pi/4 and maximal CP violation with delta = +/-pi/2, which should be useful for discussing specific neutrino mass models. In particular, we show that theta(23) = pi/4 and delta = +/-pi/2 keep unchanged when constant matter effects are taken into account for a long-baseline neutrino oscillation experiment. (C) 2010 Elsevier B.V. All rights reserved.
类目[WOS]Physics, Multidisciplinary
研究领域[WOS]Physics
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语种英语
WOS记录号WOS:000283701300014
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被引频次:19[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/311005/238029
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,Zhou YL,Xing, ZZ,et al. A generic diagonalization of the 3 x 3 neutrino mass matrix and its implications on the mu-tau flavor symmetry and maximal CP violation[J]. PHYSICS LETTERS B,2010,693(5):584-590.
APA 邢志忠,周也铃,Xing, ZZ,&Zhou, YL.(2010).A generic diagonalization of the 3 x 3 neutrino mass matrix and its implications on the mu-tau flavor symmetry and maximal CP violation.PHYSICS LETTERS B,693(5),584-590.
MLA 邢志忠,et al."A generic diagonalization of the 3 x 3 neutrino mass matrix and its implications on the mu-tau flavor symmetry and maximal CP violation".PHYSICS LETTERS B 693.5(2010):584-590.
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