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  1. A<sc>bstract</sc>

    We report the first measurement of the inclusivee+e$$ b\overline{b} $$bb¯$$ {D}_s^{\pm } $$Ds±Xande+e$$ b\overline{b} $$bb¯→ D0/$$ {\overline{D}}^0 $$D¯0Xcross sections in the energy range from 10.63 to 11.02 GeV. Based on these results, we determineσ(e+e$$ {B}_s^0{\overline{B}}_s^0 $$Bs0B¯s0X) andσ(e+e$$ B\overline{B} $$BB¯X) in the same energy range. We measure the fraction of$$ {B}_s^0 $$Bs0events at Υ(10860) to befs= ($$ {22.0}_{-2.1}^{+2.0} $$22.02.1+2.0)%. We determine also the ratio of the$$ {B}_s^0 $$Bs0inclusive branching fractions$$ \mathcal{B} $$B($$ {B}_s^0 $$Bs0→ D0/$$ {\overline{D}}^0 $$D¯0X)/$$ \mathcal{B} $$B($$ {B}_s^0 $$Bs0$$ {D}_s^{\pm } $$Ds±X) = 0.416 ± 0.018 ± 0.092. The results are obtained using the data collected with the Belle detector at the KEKB asymmetric-energye+ecollider.

     
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