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

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

2004-09-02

arxiv.org/abs/hep-ex/0409012v1

Physics

High Energy Physics

High Energy Physics - Experiment

20 pages, 9 figures, submitted to ICHEP2004, Beijing, China

Scientific paper

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 $\Asl = (-0.13 \pm 0.60(\text{stat}) \pm 0.56(\text{sys}))%$.

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