Friedberg-Lee symmetry and tribimaximal neutrino mixing in the inverse seesaw mechanism

	Friedberg-Lee symmetry and tribimaximal neutrino mixing in the inverse seesaw mechanism
	Chan, AH; Low, HB; Xing, ZZ; Xing ZZ(邢志忠)
刊名	PHYSICAL REVIEW D
	2009
卷号	80 期号:7 页码:73006
通讯作者	[Chan, Aik Hui ; Xing, Zhi-zhong] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Chan, Aik Hui ; Xing, Zhi-zhong] Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China ; [Chan, Aik Hui ; Low, Hwee Boon ; Xing, Zhi-zhong] Nanyang Technol Univ, Inst Adv Studies, Singapore 639673, Singapore ; [Chan, Aik Hui] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore
英文摘要	The inverse seesaw mechanism with three pairs of gauge-singlet neutrinos offers a natural interpretation of the tiny masses of three active neutrinos at the TeV scale. We combine this picture with the newly proposed Friedberg-Lee (FL) symmetry in order to understand the observed pattern of neutrino mixing. We show that the FL symmetry requires only two pairs of the gauge-singlet neutrinos to be massive, implying that one active neutrino must be massless. We propose a phenomenological ansatz with broken FL symmetry and exact mu-tau symmetry in the gauge-singlet neutrino sector, and obtain the tribimaximal neutrino mixing pattern by means of the inverse seesaw relation. We demonstrate that nonunitary corrections to this result can possibly reach the percent level, and a soft breaking of mu-tau symmetry can give rise to CP violation in such a TeV-scale seesaw scenario.
学科主题	Astronomy & Astrophysics; Physics
类目[WOS]	Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]	Astronomy & Astrophysics ; Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000271353400019
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/240754]
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	Chan, AH,Low, HB,Xing, ZZ,et al. Friedberg-Lee symmetry and tribimaximal neutrino mixing in the inverse seesaw mechanism[J]. PHYSICAL REVIEW D,2009,80(7):73006.
APA	Chan, AH,Low, HB,Xing, ZZ,&邢志忠.(2009).Friedberg-Lee symmetry and tribimaximal neutrino mixing in the inverse seesaw mechanism.PHYSICAL REVIEW D,80(7),73006.
MLA	Chan, AH,et al."Friedberg-Lee symmetry and tribimaximal neutrino mixing in the inverse seesaw mechanism".PHYSICAL REVIEW D 80.7(2009):73006.