Figure 11

The number of ρ⁺ ρ^- candidates in the signal region with either a B⁰ tag (a) $\left(N_{B^0}\right)$, or a ${\overline{B}}^0$tag (b) $\left(N_{{\overline{B}}^0}\right)$as a function of Δ t. (c) The raw asymmetry, $\left(N_{B^0}-N_{{\overline{B}}^0}\right)/\left(N_{B^0}+N_{{\overline{B}}^0}\right)$. The dashed curves represent the estimated backgrounds.