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Zhao, ZH; Zhao, ZH (reprint author), Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
Understanding for flavor physics in the lepton sector
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordModel Mass Neutrinos
AbstractIn this paper, we give a model for understanding flavor physics in the lepton sector mass hierarchy among different generations and neutrino mixing patterns. The model is constructed in the framework of supersymmetry, with a family symmetry S4 * U(1). There are two right-handed neutrinos introduced for a seesaw mechanism, while some standard model gauge group singlet fields are included, which transforms nontrivially under family symmetry. In the model, each order of contributions are suppressed by delta similar to 0.1 compared to the previous one. In order to reproduce the mass hierarchy, m(tau) and root Delta m(atm)(2), and m(mu) and root Delta m(sol)(2) are obtained at leading order and next-to-leading order, respectively, while the electron can only get its mass through next-to-next-to-next-to-leading order contributions. For neutrino mixing angels, theta(12), theta(23), theta(13) are 45 degrees, 45 degrees, 0, i.e., the bimaximal mixing pattern as a first approximation, while higher order contributions can make them consistent with experimental results. As corrections for theta(12) and theta(13) originate from the same contribution, there is a relation predicted for them: sin theta(13) 1-tan theta(12)/1+tan theta(12). Besides, the deviation from pi/4 for theta(23) should have been as large as the deviation from 0 for theta(13;) if not, the former is suppressed by a factor of 4 compared to the latter.
2012
ISSN1550-7998
Volume86Issue:9Pages:96010
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China [11075193, 10821504]; National Basic Research Program of China [2010CB833000] ; National Natural Science Foundation of China [11075193, 10821504]; National Basic Research Program of China [2010CB833000] ; National Natural Science Foundation of China [11075193, 10821504]; National Basic Research Program of China [2010CB833000] ; National Natural Science Foundation of China [11075193, 10821504]; National Basic Research Program of China [2010CB833000]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/14979
Collection理论物理所科研产出_SCI论文
Corresponding AuthorZhao, ZH (reprint author), Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Zhao, ZH,Zhao, ZH . Understanding for flavor physics in the lepton sector[J]. PHYSICAL REVIEW D,2012,86(9):96010.
APA Zhao, ZH,&Zhao, ZH .(2012).Understanding for flavor physics in the lepton sector.PHYSICAL REVIEW D,86(9),96010.
MLA Zhao, ZH,et al."Understanding for flavor physics in the lepton sector".PHYSICAL REVIEW D 86.9(2012):96010.
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