Charmless 3-body B decays:: Resonant and nonresonant contributions

被引：7

作者：

Cheng, Hai-Yang ^{[1
]}

机构：

[1] Acad Sinica, Inst Phys, Taipei 115, Taiwan

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2008年 / 23卷 / 21期

关键词：

D O I：

10.1142/S0217751X08041888

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Charmless 3-body decays of B mesons are studied using a simple model based on the framework of the factorization approach. We have identified a large source of the nonresonant signal in the matrix elements of scalar densities, e.g. < K (K) over bar\(s) over bars\0 >. This explains the dominance of the nonresonant background in B -> KKK decays, the sizable nonresonant fraction of order (35 similar to 40)% in K-pi(+)pi(-) and (K) over bar (0)pi(+)pi(-) modes and the smallness of nonresonant rates in B -> pi pi pi decays. We have computed the resonant and nonresonant contributions to charmless 3-body decays and determined the rates for the quasi-two-body decays B -> VP and B -> SP. Time-dependent CP asymmetries sin 2 beta(eff) and A(CP) in K+K-KS, KSKSKS, K-S pi(+)pi(-) and K-S pi(0)pi(0) modes are estimated.

引用

页码：3229 / 3236

页数：8

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