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

K. Abe
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Abstract

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 $Υ(4S)$ resonance and 9 fb^{-1} recorded at an energy 60 MeV below the resonance, we measure $\Asl = (-0.13 \pm 0.60(\text{stat}) \pm 0.56(\text{sys}))%$.

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K. Abe. 2004-09-02. CP violation in B-$\bar{B}$ mixing with dilepton events. https://arxiv.org/abs/hep-ex/0409012

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