标题： B-$\bar{B}$混合中的电荷宇称破坏与二轻子事例 显示英文标题

标题： CP violation in B-$\bar{B}$ mixing with dilepton events

摘要： 我们报告了在$B^0$-$\bar B^0$混合中同电荷双轻子的电荷不对称性的测量。 数据是在KEKB上使用Belle探测器收集的。 利用在$\Upsilon(4S)$共振点记录的78 fb^{-1}数据样本和在低于共振点60 MeV的能量下记录的9 fb^{-1}数据样本，我们测量了$\Asl = (-0.13 \pm 0.60(\text{stat}) \pm 0.56(\text{sys}))%$。 显示英文摘要

摘要： We report a measurement of the charge asymmetry for same-sign dileptons in $B^0$-$\bar B^0$ mixing. The data were collected with the Belle detector at KEKB. Using a data sample of 78 fb^{-1} recorded at the $\Upsilon(4S)$ resonance and 9 fb^{-1} recorded at an energy 60 MeV below the resonance, we measure $\Asl = (-0.13 \pm 0.60(\text{stat}) \pm 0.56(\text{sys}))%$.