文献类型：期刊文献

英文题名：Generalization of Friedberg-Lee symmetry

作者：Huang, Chao-Shang[3];Li, Tianjun[3,4];Liao, Wei[1,2];Zhu, Shou-Hua[5]

机构：[1]E China Univ Sci & Technol, Inst Modern Phys, Shanghai 200237, Peoples R China;[2]Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China;[3]Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China;[4]Texas A&M Univ, George P & Cynthia W Mitchell Inst Fundamental Ph, College Stn, TX 77843 USA;[5]Peking Univ, Inst Theoret Phys, Sch Phys, Beijing 100871, Peoples R China

年份：2008

卷号：78

期号：1

外文期刊名：PHYSICAL REVIEW D

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000258636400026)】；

基金：The research is supported in part by the National Science Foundation of China (NSFC) under Grants No. 10745003, No. 10775001, No. 10635030, and No. 10435040, and by the Cambridge-Mitchell Collaboration in Theoretical Cosmology (T.L.).

语种：英文

摘要：We study the possible origin of Friedberg-Lee symmetry. First, we propose the generalized Friedberg-Lee symmetry in the potential by including the scalar fields in the field transformations, which can be broken down to the Friedberg-Lee symmetry spontaneously. We show that the generalized Friedberg-Lee symmetry allows a typical form of Yukawa couplings, and the realistic neutrino masses and mixings can be generated via the seesaw mechanism. If the right-handed neutrinos transform nontrivially under the generalized Friedberg-Lee symmetry, we can have the testable TeV scale seesaw mechanism. Second, we present two models with the SO(3) x U(1) global flavor symmetry in the lepton sector. After the flavor symmetry breaking, we can obtain the charged lepton masses, and explain the neutrino masses and mixings via the seesaw mechanism. Interestingly, the complete neutrino mass matrices are similar to those of the above models with generalized Friedberg-Lee symmetry. So the Friedberg-Lee symmetry is the residual symmetry in the neutrino mass matrix after the SO(3) x U(1) flavor symmetry breaking.