论文标题
分支分数的测量并在$ d^0 \ rightarrow k^0_s \，k^0_s \，π^+π^ - $ $ $ $ $ $ $上衰减在Belle
Measurement of the branching fraction and search for $CP$ violation in $D^0\rightarrow K^0_S\,K^0_S\,π^+π^-$ decays at Belle
论文作者
论文摘要
我们测量单一cabibbo抑制的衰减的分支分数$ d^0 \ rightarrow k^0_s \，k^0_s \，π^+π^ - $，我们通过$ cp $ a^{} $ and $ cp $ a { $ a_ {cp}^{t} $。后来的两个测量是互补的。我们使用Belle实验记录的数据的922〜FB $^{ - 1} $，该$在Kekb非对称能源$ e^+ e^ - $ collider上运行。分支分数相对于Cabibbo最佳归一化通道$ d^0 \ rightarrow k^0_s \，π^+π^ - $。预计单一抑制Cabibbo抑制的魅力衰减对新物理效果特别敏感。
We measure the branching fraction for the Singly Cabibbo-suppressed decay $D^0\rightarrow K^0_S\,K^0_S\,π^+π^-$, and we search for $CP$ violation via a measurement of the $CP$ asymmetry $A^{}_{CP}$ and also the $T$-odd triple-product asymmetry $a_{CP}^{T}$. The later two measurements are complementary. We use 922~fb$^{-1}$ of data recorded by the Belle experiment, which ran at the KEKB asymmetric-energy $e^+ e^-$ collider. The branching fraction is measured relative to the Cabibbo-favored normalization channel $D^0\rightarrow K^0_S\,π^+π^-$. Singly Cabibbo-suppressed charm decays are expected to have especially good sensitivity to new physics effects.
