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	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; Wu, YL
刊名	Physical review d
	2001-07-01
卷号	64期号:1页码:9
ISSN号	0556-2821
通讯作者	Huang, cs()
英文摘要	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, 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.
WOS关键词	HADRONIC 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
WOS研究方向	Astronomy & Astrophysics ; Physics
WOS类目	Astronomy & Astrophysics ; Physics, Particles & Fields
语种	英语
出版者	AMERICAN PHYSICAL SOC
WOS记录号	WOS:000169619300088
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2176321
专题	高能物理研究所
通讯作者	Huang, CS
作者单位	1.Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China 2.CCAST, World Lab, Beijing 100080, Peoples R China 3.Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Huang, CS,Huo, WJ,Wu, YL. 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):9.
APA	Huang, CS,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),9.
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):9.

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