新的$B^{\pm}\to Kπ$数据解释了CP破坏的缺失泡利效应消除了树企鹅干扰
New $B^{\pm}\to Kπ$ data explain absence of CP violation Tree-penguin interference canceled by Pauli effects
摘要：
在对更精确的$B\to Kπ$数据进行新的改进数据分析时，解释了在$B^o\to K^\pmπ^{\mp}$衰变中观察到的CP破坏以及在$B^+\to K^+π^o$衰变中观察不到CP破坏。“Lipkin求和规则”的成功表明，四个$B\tow Kπ$分支比由三个参数决定，企鹅图$P$和两个干扰项$P\cdot T$和$P\cdot S$之间的主导企鹅和两个树图;颜色偏好和颜色抑制图。先前的分析证实了该模型的误差，使干扰项的值小于两个标准差。在$B^o\to K^\pmπ^{\mp}$衰变中观察到的CP破坏表明了$P\cdot T$的有限值。新的精确数据分析显示$P\cdot T$和$P\cdot S$干扰贡献远高于误差。它们对$B^\pm\to Kπ$衰变的贡献几乎相等，相位相反，在实验误差范围内相互抵消。这种在先前分析中意外的取消解释了在$B^\pm\to Kπ$衰减中未能看到CP破坏的原因。这可能是由于在以前的分析中忽略了泡利反对称交换。两个$B^\pm\to Kπ$树形图的区别在于两个相同的$u$夸克的交换。$B^o\to K^\pmπ^{\mp}$图中没有相同的夸克对。这种泡利效应解释了不参与弱相互作用的旁观夸克的味道改变所产生的差异。我们的分析不同于以前的分析，假设SU（3）味对称使用输入$B\to ππ$数据和忽略泡利效应。我们使用新的数据，包括泡利效应和强末态相互作用的所有订单在QCD没有更高的味道对称性假设超越同位旋。我们不使用$B\to ππ$数据。
英文摘要：
Observation of CP violation in $B^o\to K^\pmπ^{\mp}$ decays and its absence in $B^+\to K^+π^o$ decays are explained in new improved data analysis of more precise $B\to Kπ$ data. Success of the "Lipkin Sum Rule" indicates that four $B\tow Kπ$ branching ratios are determined by three parameters, the penguin diagram $P$ and two interference terms $P\cdot T$ and $P\cdot S$ between the dominant penguin and two tree diagrams; the color-favored and color suppressed diagrams. Previous analyzes confirmed the model with errors leaving values of interference terms less that two standard deviations from zero. The observation CP violation in $B^o\to K^\pmπ^{\mp}$ decays indicates a finite value for $P\cdot T$. New precise data analysis show $P\cdot T$ and $P\cdot S$ interference contributions well above errors. Their contributions to $B^\pm\to Kπ$ decays are shown to be nearly equal with opposite phase and cancel within experimental errors. This cancelation unexpected in previous analyzes explains the failure to see CP violation in $B^\pm\to Kπ$ decays. It can be due to the Pauli antisymmetry exchange neglected in previous analyzes. Two $B^\pm\to Kπ$ tree diagrams differ by interchange of two identical $u$ quarks. $B^o\to K^\pmπ^{\mp}$ diagrams have no identical quark pairs. This Pauli effect explains the difference produced by changing the flavor of the spectator quark which does not participate in the weak interaction. Our analysis differs from previous analyzes which assume SU(3) flavor symmetry to use input from $B\to ππ$ data and neglect Pauli effects. We use new data, include Pauli effects and strong final state interactions to all orders in QCD with no higher flavor symmetry assumed beyond isospin. We do not use $B\to ππ$ data.
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