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Charge Asymmetry of Same-Sign Dileptons in $B^0$-$\bar{B}^0$ Mixing

E. Nakano, for the Belle Collaboration

Published 2005-05-09Version 1

We report a measurement of the charge asymmetry for same-sign dileptons in $B^0$-$\bar{B}^0$ mixing, $A_{\rm sl}$. 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 $A_{\rm sl} = (-1.1 \pm 7.9(\text{stat}) \pm 7.0(\text{sys}))\times 10^{-3}$.

Comments: 21 pages, 9 figures, 3 tables, submitted to Physical Review D
Journal: Phys.Rev.D73:112002,2006
Categories: hep-ex
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