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Three body open flavor decays of higher charmonium and bottomonium

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 نشر من قبل Xin-Zhen Weng
 تاريخ النشر 2018
  مجال البحث
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In the present work, we study the OZI-allowed three body open flavor decay properties of higher vector charmonium and bottomonium states with an extended quark pair creation model. For the bottomonium system, we get that (i) the $BBpi$ and $B^*B^*pi$ partial decay widths of the $Upsilon(5S)$ state are consistent with the experiment, and the $BB^*pi$ partial decay width of the $Upsilon(5S)$ state is smaller but very close to the Belles experiment. Meanwhile, (ii) the $BB^*pi$ and $B^*B^*pi$ decay widths of $Upsilon(11020)$ can reachs $2sim3$ MeV. In addition, (iii) for the most of higher vector charmonium states, the partial decay widths of the $DD^*pi$ and $D^*D^*pi$ modes can reach up to several MeV, which may be observed in future experiments.

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With an extended quark pair creation model we systematically study the OZI-allowed three body open flavor decays of higher vector charmonium and bottomonium states. We obtain that the $BB^*pi$ and $B^*B^*pi$ partial decay widths of $Upsilon(10860)$ a re consistent with experiment, and the corresponding partial decay widths of $Upsilon(11020)$ can reach up to 2$sim$3 MeV. Meanwhile the partial widths of $DD^*pi$ and $D^*D^*pi$ modes for most higher vector charmonium states can reach up to several MeV.
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