Penguin trapping with isospin analysis and CP asymmetries in B decays.

Penguin trapping with isospin analysis and CP asymmetries in B decays.
复制标题

通过同位旋分析和 B 衰变中的 CP 不对称性捕获企鹅。

DOI:
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发表时间:
1991
期刊:
Physical Review D, Particles and fields
影响因子:
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通讯作者:
Arthur E. Snyder
Arthur E. Snyder
中科院分区:
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文献类型:
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作者:
H. Lipkin;Y. Nir;Arthur E. Snyder

文献摘要

被引文献

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利用同位旋关系消除了B 0衰变中各种CP不对称性的强子不确定性。除了ππ模的简单三角关系外,我们还研究了Kπ模的四边形关系和ρπ模的五边形关系。对ρρ需要进行角动量和同位旋的综合分析。这些方法也适用于三体衰变,如Kππ。企鹅振幅的大小可以在各种模式中提取。在测量CP不对称性之前,可以通过衰变率的求和规则来实验测试这种分析背后的理论原理
Isospin relations are used to eliminate hadronic uncertainties in various CP asymmetries in B 0 decays. In addition to the simple triangle relations for the ππ mode, we study quadrilateral relations for Kπ and pentagon relations for ρπ. A combined angular and isospin analysis is required for ρρ. These methods are useful also for three-body decays such as Kππ. The magnitude of the penguin amplitude can be extracted in various modes. The theoretical principles behind this analysis can be experimentally tested through sum rules for decay rates prior to the measurement of CP asymmetries