https://scholars.lib.ntu.edu.tw/handle/123456789/32464
標題: | CP Violation in B → PP Decays in the Standard Model with SU(3) Symmetry | 作者: | Fu, Han-Kuei He, Xiao-Gang Hsiao, Yu-Kuo Shi, Jian-Qing |
公開日期: | 十二月-2003 | 出版社: | 臺北市:國立臺灣大學物理系所 | 卷: | 41 | 期: | 6 | 起(迄)頁: | 601-617 | 來源出版物: | Chinese Journal of Physics | 摘要: | In this paper we study CP violation in the B ! PP decays in the Standard Model using SU(3) avor symmetry. With SU(3) symmetry, only seven hadronic parameters are needed to describe the B ! PP decays in the SM, when annihilation contributions are neglected. The relevant hadronic parameters can be determined using known experimental data from B ! and B ! K. We predict branching ratios and CP asymmetries for some of the unmeasured B ! PP decays. Some of the CP asymmetries can be large and measured at B factories. The eects of the annihilation contributions can also be studied using the present experimental data. Inclusion of annihilation contributions introduces six more hadronic parameters. We nd that the annihilation contributions are in general small, but can have signicant eects on CP asymmetries and some Bs ! PP decays. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/20060927115952679656 | 其他識別: | 20060927115952679656 |
顯示於: | 物理學系 |
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