Direct CP violation for (B)over-bars0 → K0π+π- decay in QCD factorization

被引：19

作者：

Lue, Gang ^{[1
]}

Yuan, Bao-He ^{[2
]}

Wei, Ke-Wei ^{[3
]}

机构：

[1] Henan Univ Technol, Coll Sci, Zhengzhou 450001, Peoples R China

[2] N China Univ Water Resources & Elect Power, Zhengzhou 450011, Peoples R China

[3] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

来源：

PHYSICAL REVIEW D | 2011年 / 83卷 / 01期

基金：

中国国家自然科学基金;

关键词：

B MESON DECAYS; BRANCHING RATIOS; FORM-FACTORS; OMEGA; EXTRACTION; PI;

D O I：

10.1103/PhysRevD.83.014002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In the framework of QCD factorization, based on the first order of isospin violation, we study direct CP violation in the decay of (B) over bar (0)(s) --> K-0 rho(0)(omega) --> K-0 pi(+)pi(-), including the effect of rho - omega mixing. We find that the CP violating asymmetry is large via the rho - omega mixing mechanism when the invariant mass of the pi(+)pi(-) pair is in the vicinity of the ! resonance. For the decay of (B) over bar (0)(s) --> K-0 rho(0)(omega) --> K-0 pi(+)pi(-), the maximum CP violating asymmetries can reach about 46%. We also discuss the possibility to observe the predicted CP violating asymmetries at the LHC.

引用

页数：12

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