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He, HJ; Yin, FR; He, HJ (reprint author), Tsinghua Univ, Inst Modern Phys, Beijing 100084, Peoples R China.
Common origin of pi-tau and CP breaking in the neutrino seesaw, baryon asymmetry, and hidden flavor symmetry
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordQuark Mass Matrices Thermal Leptogenesis Grand Unification Non-conservation Violation Model Oscillations Baryogenesis Number Matter
AbstractWe conjecture that all CP violations (both Dirac and Majorana types) arise from a common origin in the neutrino seesaw. With this conceptually attractive and simple conjecture, we deduce that mu-tau breaking shares the common origin with all CP violations. We study the common origin of mu-tau and CP breaking in the Dirac mass matrix of seesaw Lagrangian (with right-handed neutrinos being mu-tau blind), which uniquely leads to inverted mass ordering of light neutrinos. We then predict a very different correlation between the two small mu-tau breaking observables theta(13) - 0 degrees and theta(23) - 45 degrees, which can saturate the present experimental upper limit on theta(13). This will be tested against our previous normal mass-ordering scheme by the ongoing oscillation experiments. We also analyze the correlations of theta(13) with Jarlskog invariant and neutrinoless beta beta-decay observable. From the common origin of CP and mu-tau breaking in the neutrino seesaw, we establish a direct link between the low energy CP violations and the cosmological CP violation for baryon asymmetry. With these we further predict a lower bound on theta(13), supporting the ongoing probes of theta(13) at Daya Bay, Double Chooz, and RENO experiments. Finally, we analyze the general model-independent Z(2) circle times Z(2) symmetry structure of the light neutrino sector, and map it into the seesaw sector, where one of the Z(2)'s corresponds to the mu-tau symmetry Z(2)(mu tau) and another the hidden symmetry Z(2)(s) (revealed in our previous work) which dictates the solar mixing angle theta(12). We derive the physical consequences of this Z(2)(s) and its possible partial violation in the presence of mu-tau breaking (with or without the neutrino seesaw), regarding the theta(12) determination and the correlation between mu-tau breaking observables.
2011
ISSN1550-7998
Volume84Issue:3Pages:33009
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNSF of China [10625522, 10635030]; National Basic Research Program of China [2010CB833000]; Tsinghua University; Center for High Energy Physics at Peking University ; NSF of China [10625522, 10635030]; National Basic Research Program of China [2010CB833000]; Tsinghua University; Center for High Energy Physics at Peking University ; NSF of China [10625522, 10635030]; National Basic Research Program of China [2010CB833000]; Tsinghua University; Center for High Energy Physics at Peking University ; NSF of China [10625522, 10635030]; National Basic Research Program of China [2010CB833000]; Tsinghua University; Center for High Energy Physics at Peking University
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Cited Times:73[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/14290
Collection理论物理所科研产出_SCI论文
Corresponding AuthorHe, HJ (reprint author), Tsinghua Univ, Inst Modern Phys, Beijing 100084, Peoples R China.
Recommended Citation
GB/T 7714
He, HJ,Yin, FR,He, HJ . Common origin of pi-tau and CP breaking in the neutrino seesaw, baryon asymmetry, and hidden flavor symmetry[J]. PHYSICAL REVIEW D,2011,84(3):33009.
APA He, HJ,Yin, FR,&He, HJ .(2011).Common origin of pi-tau and CP breaking in the neutrino seesaw, baryon asymmetry, and hidden flavor symmetry.PHYSICAL REVIEW D,84(3),33009.
MLA He, HJ,et al."Common origin of pi-tau and CP breaking in the neutrino seesaw, baryon asymmetry, and hidden flavor symmetry".PHYSICAL REVIEW D 84.3(2011):33009.
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