Charmless B → PP decays using flavor SU(3) symmetry
Charmless B → PP decays using flavor SU(3) symmetry
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DOI：
10.1103/physrevd.70.034020
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发表时间：
2004-04
影响因子：
5
通讯作者：
C. Chiang;M. Gronau;J. Rosner;D. Suprun
中科院分区：
文献类型：
--
作者：
C. Chiang;M. Gronau;J. Rosner;D. Suprun
在味SU（3）框架下，通过树（T）振幅中衰变常数的比值来考虑对称性破缺，分析了B介子衰变为无粲矢量（V）和赝标（P）介子的过程.树和企鹅振幅的幅度和相对相位从数据中提取的对称性假设进行了测试，并预测率和CP不对称性在尚未看不见的衰减模式。一个关键的假设，我们进行了一些测试，并建议其他的是企鹅振幅之间的关系，其中观众夸克被纳入一个赝标量介子或矢量介子。稍微限制目前允许的范围内的其他数据拟合的值是有利的，但在这个范围之外，仍然有可接受的解决方案，不能排除在目前的B → VP实验的基础上。
The decays of B mesons to a charmless vector (V ) and pseudoscalar (P) meson are analyzed within a framework of flavor SU(3) in which symmetry breaking is taken into account through ratios of decay constants in tree (T) amplitudes. The magnitudes and relative phases of tree and penguin amplitudes are extracted from data; the symmetry assumption is tested; and predictions are made for rates and CP asymmetries in as-yet-unseen decay modes. A key assumption for which we perform some tests and suggest others is a relation between penguin amplitudes in which the spectator quark is incorporated into either a pseudoscalar meson or a vector meson. Values of slightly restricting the range currently allowed by fits to other data are favored, but outside this range there remain acceptable solutions which cannot be excluded solely on the basis of present B → V P experiments.