First observations of $ψ(2S)$ and $χ_{cJ}(1P)$ decays to four-body final states $h^+h^- K^0_S K^0_S$

Details First observations of $ψ(2S)$ and $χ_{cJ}(1P)$ decays to four-body final states $h^+h^- K^0_S K^0_S$ First observations of $ψ(2S)$ and $χ_{cJ}(1P)$ decays to four-body final states $h^+h^- K^0_S K^0_S$

2004-10-09

arxiv.org/abs/hep-ex/0410028v3

Phys.Lett.B630:21-30,2005

Physics

High Energy Physics

High Energy Physics - Experiment

Scientific paper

10.1016/j.physletb.2005.09.050

$\chi_{c0}$, $\chi_{c1}$, and $\chi_{c2}$ decays to $\pi^+\pi^-K^0_SK^0_S$ and $K^+K^-K^0_SK^0_S$, as well as $\psi(2S)$ decay to $\pi^+\pi^-K^0_SK^0_S$ are presented. The branching fractions of these decay channels are determined using $14\times 10^6$ $\psi(2S)$ events collected at BESII/BEPC. The branching fractions of $\chi_{c0},\chi_{c2}\to K^0_SK^0_S$ are measured with improved statistical precision.

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