Belle results on time dependent CP violation in B decays

被引：0

作者：

Ishino, H ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2005年 / 20卷 / 2-3期

基金：

中国国家自然科学基金; 日本学术振兴会; 澳大利亚研究理事会;

关键词：

CP-violation; CKM matrix;

D O I：

10.1142/S0217751X05021531

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：

We report on measurements of time-dependent, CP-violation parameters in neutral B meson systems based on a 140 fb(-1) data sample collected at the Y(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. One B meson is fully reconstructed in one of the CP eigenstate decay channels, and its flavor is identified from the decay products of the accompanying B meson. The CP-violation parameters are extracted from the asymmetries in the distributions of the proper-time intervals between the two B decays. The parameter sin 2 phi(1) is measured with the decay modes including the b -> c tree and b -> s penguin transitions, and sin 202 is obtained from the decay mode B -> pi(+)pi(-). A brief discussion of the phi(3) measurements with B -> D(*) (-/+)pi(+/-) decays is also given.

引用

页码：365 / 374

页数：10

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