Constraints on the mass and mixing of the fourth generation quark from direct CP violation epsilon '/epsilon and rare K decays

doi:10.1103/PhysRevD.64.016009

IHEP OpenIR > 理论物理室

	Constraints on the mass and mixing of the fourth generation quark from direct CP violation epsilon '/epsilon and rare K decays
	Huang, CS; Huo WJ(霍武军); Huo, WJ; Wu, YL
	2001
发表期刊	PHYSICAL REVIEW D
卷号	64 期号:1 页码:16009
通讯作者	Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China ; CCAST, World Lab, Beijing 100080, Peoples R China ; Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China
文章类型	Review
摘要	We 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, IMVV-t's(t'd) (or VV-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.
学科领域	Astronomy & Astrophysics; Physics
DOI	10.1103/PhysRevD.64.016009
URL	查看原文
收录类别	ADS
语种	英语
WOS研究方向	Astronomy & Astrophysics ; Physics
WOS类目	Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号	WOS:000169619300088
ADS Bibcode	2001PhRvD..64a6009H
ADS URL	https://ui.adsabs.harvard.edu/abs/2001PhRvD..64a6009H
ADS引文	https://ui.adsabs.harvard.edu/abs/2001PhRvD..64a6009H/citations
引用统计	正在获取... 被引频次：23 [ADS]
文献类型	期刊论文
条目标识符	https://ir.ihep.ac.cn/handle/311005/240475
专题	理论物理室
作者单位	中国科学院高能物理研究所
第一作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Huang, CS,Huo WJ,Huo, WJ,et al. Constraints on the mass and mixing of the fourth generation quark from direct CP violation epsilon '/epsilon and rare K decays[J]. PHYSICAL REVIEW D,2001,64(1):16009.
APA	Huang, CS,霍武军,Huo, WJ,&Wu, YL.(2001).Constraints on the mass and mixing of the fourth generation quark from direct CP violation epsilon '/epsilon and rare K decays.PHYSICAL REVIEW D,64(1),16009.
MLA	Huang, CS,et al."Constraints on the mass and mixing of the fourth generation quark from direct CP violation epsilon '/epsilon and rare K decays".PHYSICAL REVIEW D 64.1(2001):16009.