QCD FACTORIZATION BASED ON SIX-QUARK OPERATOR EFFECTIVE HAMILTONIAN FROM PERTURBATIVE QCD AND CHARMLESS BOTTOM MESON DECAYS B((s)) -> pi pi, pi K, KK

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	QCD FACTORIZATION BASED ON SIX-QUARK OPERATOR EFFECTIVE HAMILTONIAN FROM PERTURBATIVE QCD AND CHARMLESS BOTTOM MESON DECAYS B((s)) -> pi pi, pi K, KK
	Yang, Yi-Bo; Su, F , Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China, Peoples R China; Su, Fang; Wu, Yue-Liang; Zhuang, Ci
刊名	INTERNATIONAL JOURNAL OF MODERN PHYSICS A
	2010
卷号	25 期号:1 页码:69-111
关键词	Renormalization Regularization Parameters Extraction
ISSN号	0217-751X
英文摘要	The charmless bottom meson decays are systematically investigated based on an approximate six-quark operator effective Hamiltonian from perturbative QCD. It is shown that within this framework the naive QCD factorization method provides a simple way to evaluate the hadronic matrix elements of two-body mesonic decays. The singularities caused by on mass-shell quark propagator and gluon exchanging interaction are appropriately treated. Such a simple framework allows us to make theoretical predictions for the decay amplitudes with reasonable input parameters. The resulting theoretical predictions for all the branching ratios and CP asymmetries in the charmless B(0), B(+), B(s) -> pi pi, pi K, KK decays are found to be consistent with the current experimental data except for a few decay modes. The observed large branching ratio in B -> pi(0)pi(0) decay remains a puzzle though the predicted branching ratio may be significantly improved by considering the large vertex corrections in the effective Wilson coefficients. More precise measurements of charmless bottom meson decays, especially on CP violations in B -> KK and B(s) -> pi pi, pi K, KK decay modes, will provide a useful test and guide us to a better understanding on perturbative and nonperturbative QCD.
学科主题	Physics
URL标识	查看原文
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5183]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Su, F , Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China, Peoples R China
推荐引用方式 GB/T 7714	Yang, Yi-Bo,Su, F , Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China, Peoples R China,Su, Fang,et al. QCD FACTORIZATION BASED ON SIX-QUARK OPERATOR EFFECTIVE HAMILTONIAN FROM PERTURBATIVE QCD AND CHARMLESS BOTTOM MESON DECAYS B((s)) -> pi pi, pi K, KK[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2010,25(1):69-111.
APA	Yang, Yi-Bo,Su, F , Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China, Peoples R China,Su, Fang,Wu, Yue-Liang,&Zhuang, Ci.(2010).QCD FACTORIZATION BASED ON SIX-QUARK OPERATOR EFFECTIVE HAMILTONIAN FROM PERTURBATIVE QCD AND CHARMLESS BOTTOM MESON DECAYS B((s)) -> pi pi, pi K, KK.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,25(1),69-111.
MLA	Yang, Yi-Bo,et al."QCD FACTORIZATION BASED ON SIX-QUARK OPERATOR EFFECTIVE HAMILTONIAN FROM PERTURBATIVE QCD AND CHARMLESS BOTTOM MESON DECAYS B((s)) -> pi pi, pi K, KK".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 25.1(2010):69-111.