Constraining penguin contributions and the CKM angle $\gamma$ through $B_d\to\pi^+\pi^-$
Constraining penguin contributions and the CKM angle $\gamma$ through $B_d\to\pi^+\pi^-$
复制标题
约束企鹅贡献和 CKM 角度 $gamma$ 到 $B_d opi^ pi^-$
DOI:
10.1007/s100520050005
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发表时间:
2000
期刊:
影响因子:
--
通讯作者:
R. Fleischer
中科院分区:
文献类型:
--
作者:
R. Fleischer
The decaysandprovide an interesting strategy to extract the CKM angleat “second-generation”B-physics experiments of the LHC era. A variant for “first-generation” experiments can be obtained, ifis replaced by. We show that the most recent experimental results for the CP-averagedandbranching ratios imply a rather restricted range for the corresponding penguin parameters, and upper bounds on the direct CP asymmetriesand. Moreover, we point out that interesting constraints oncan be obtained from the CP-averagedandbranching ratios, if in addition mixing-induced CP violation in the former decay is measured, and the–mixing phase is fixed through. An extraction ofbecomes possible, if furthermore direct CP violation inoris observed.