Leptonic CP violation and Wolfenstein parametrization for lepton mixing

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	Leptonic CP violation and Wolfenstein parametrization for lepton mixing
	Liu, Z; Wu, YL
刊名	PHYSICS LETTERS B
	2014
卷号	733 期号:-页码:226-232
关键词	DEGENERATE NEUTRINO MASSES SO(3) GAUGE-MODEL 2-HIGGS-DOUBLET MODEL SYMMETRY OSCILLATIONS MATRICES DETECTOR SEARCH QUARK BOSON
ISSN号	0370-2693
通讯作者	Wu, YL (reprint author), Univ Chinese Acad Sci, Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys,Kavli Inst Theoret Phy, Beijing 100190, Peoples R China.
英文摘要	We investigate a general structure of lepton mixing matrix resulting from the SUF(3) gauge family model with an appropriate vacuum structure of SUF(3) symmetry breaking. It is shown that the lepton mixing matrix can be parametrized by using the Wolfenstein parametrization method to characterize its deviation from the tri-bimaximal mixing. A general analysis for the allowed leptonic CP-violating phase delta(e) and the leptonic Wolfenstein parameters lambda(e), A(e), rho(e) is carried out based on the observed lepton mixing angles. We demonstrate how the leptonic CP violation correlates to the leptonic Wolfenstein parameters. It is found that the phase Se is strongly constrained and only a large or nearly maximal leptonic CP-violating phase vertical bar delta(e)vertical bar similar or equal to 3 pi/4 similar to pi/2 is favorable when lambda(e) > 0.15. In particular, when taking lambda(e) to be the Cabibbo angle lambda(e) similar or equal to lambda similar or equal to 0.225, a sensible result for leptonic Wolfenstein parameters and CP violation is obtained with A(e) = 1.40, rho(e) = 0.20, delta(e) similar to 101.76 degrees, which is compatible with the one in quark sector. An interesting correlation between leptons and quarks is observed, which indicates a possible common origin of masses and mixing for the charged leptons and quarks. (C) 2014 The Authors. Published by Elsevier B.V.
学科主题	Physics
收录类别	SCI
资助信息	National Natural Science Foundation of China (NSFC) [10975170, 10905084, 10821504]; Chinese Academy of Sciences
原文出处	http://dx.doi.org/10.1016/j.physletb.2014.04.049
语种	英语
WOS记录号	WOS:000336430400039
公开日期	2015-06-03
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15742]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Liu, Z,Wu, YL. Leptonic CP violation and Wolfenstein parametrization for lepton mixing[J]. PHYSICS LETTERS B,2014,733(-):226-232.
APA	Liu, Z,&Wu, YL.(2014).Leptonic CP violation and Wolfenstein parametrization for lepton mixing.PHYSICS LETTERS B,733(-),226-232.
MLA	Liu, Z,et al."Leptonic CP violation and Wolfenstein parametrization for lepton mixing".PHYSICS LETTERS B 733.-(2014):226-232.