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Huang, CS; Huo, WJ; Wu, YL; Huang, CS , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
Constraints on the mass and mixing of the fourth generation quark from direct CP violation epsilon
Source PublicationPHYSICAL REVIEW D
KeywordHadronic Matrix-elements Higgs-boson Exchange Large-n Limit = 1/2 Rule Standard Model 4th Generation B0 Decays Neutrino Oscillations 2-higgs-doublet Model Delta-i=1/2 Rule
AbstractWe investigate the epsilon'/epsilon for K --> pi pi in a sequential fourth generation model. By giving the basic formulas for epsilon'/epsilon in this model, we analyze the numerical results which are dependent on m(t), and the imaginary part of the fourth CKM factor, IMV*V-t's(t'd) (or V*V-t's(t'd) and the fourth generation CKM matrix phase theta). We find that, unlike the SM, when taking the central values of all parameters for epsilon'/epsilon, the values of epsilon'/epsilon can easily fit to the current experimental data for all values of hadronic matrix elements estimated from various approaches. Also, we show that the experimental values of epsilon'/epsilon and rare K decays can provide a strong constraint on both mass and mixing of the fourth generation quark. When taking the values of hadronic matrix elements from the lattice or 1/N expansion calculations, a large region of the up-type quark mass m(t), is excluded.
2001
ISSN0556-2821
Volume64Issue:1Pages:-
Subject AreaPhysics
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/12715
Collection理论物理所科研产出_SCI论文
Corresponding AuthorHuang, CS , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
Recommended Citation
GB/T 7714
Huang, CS,Huo, WJ,Wu, YL,et al. Constraints on the mass and mixing of the fourth generation quark from direct CP violation epsilon[J]. PHYSICAL REVIEW D,2001,64(1):-.
APA Huang, CS,Huo, WJ,Wu, YL,&Huang, CS , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2001).Constraints on the mass and mixing of the fourth generation quark from direct CP violation epsilon.PHYSICAL REVIEW D,64(1),-.
MLA Huang, CS,et al."Constraints on the mass and mixing of the fourth generation quark from direct CP violation epsilon".PHYSICAL REVIEW D 64.1(2001):-.
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