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	Analysis of charmless two-body b decays in factorization-assisted topological-amplitude approach
	Zhou, Si-Hong1,2; Zhang, Qi-An1,2; Lyu, Wei-Ran3; Lu, Cai-Dian1,2
刊名	European physical journal c
	2017-02-23
卷号	77期号:2页码:19
ISSN号	1434-6044
DOI	10.1140/epjc/s10052-017-4685-0
通讯作者	Zhou, si-hong(shzhou@ihep.ac.cn)
英文摘要	We analyze charmless two-body non-leptonic b decays b -> pp, pv under the framework of a factorization-assisted topological-amplitude approach, where p(v) denotes a light pseudoscalar (vector) meson. compared with the conventional flavor diagram approach, we consider the flavor su(3) breaking effect assisted by a factorization hypothesis for topological diagram amplitudes of different decay modes, factorizing out the corresponding decay constants and form factors. the non-perturbative parameters of topology diagram magnitudes (x) and the strong phase phi are universal; they can be extracted by (2)(x) fit from current abundant experimental data of charmless bdecays. the number of free parameters and the (2)(x) per degree of freedom are both reduced compared with previous analyses. with these best fitted parameters, we predict branching fractions and cp asymmetry parameters of nearly 100 b-u,b-d and b-s decay modes. the long-standing pi pi and pi k-cp puzzles are solved simultaneously.
WOS关键词	PERTURBATIVE QCD APPROACH ; TRANSITION FORM-FACTORS ; UB-VERTICAL-BAR ; CONE SUM-RULES ; PI ; CONSTANTS ; MESONS ; PARAMETERS ; EXTRACTION ; PHYSICS
WOS研究方向	Physics
WOS类目	Physics, Particles & Fields
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000399999600004
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2177450
专题	高能物理研究所
通讯作者	Zhou, Si-Hong
作者单位	1.Inst High Energy Phys, YuQuanLu 19B, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys, YuQuanLu 19A, Beijing 100049, Peoples R China 3.Renmin Univ China, Phys Dept, ZhongGuanCun St 59, Beijing 100872, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Si-Hong,Zhang, Qi-An,Lyu, Wei-Ran,et al. Analysis of charmless two-body b decays in factorization-assisted topological-amplitude approach[J]. European physical journal c,2017,77(2):19.
APA	Zhou, Si-Hong,Zhang, Qi-An,Lyu, Wei-Ran,&Lu, Cai-Dian.(2017).Analysis of charmless two-body b decays in factorization-assisted topological-amplitude approach.European physical journal c,77(2),19.
MLA	Zhou, Si-Hong,et al."Analysis of charmless two-body b decays in factorization-assisted topological-amplitude approach".European physical journal c 77.2(2017):19.

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