Measurements of $\psip$ decays into $\gamma K\bar{K}\pi$ and $γη\pipi$

Abstract

Radiative decays of the $\psip$ into $\gamma K\bar{K}\pi$ and $γη\pipi$ final states are studied using 14 million $\psip$ events collected with the BESII detector. Branching fractions or upper limits on the branching fractions of $\psip$ and $\xcj$ decays are reported. No significant signal for $\etafl/\etafh$ is observed in the $K\bar{K}\pi$ or $η\pipi$ mass spectra, and upper limits on the branching fractions of $\psip\rarγ\etaf$, $\etaf\rar K\bar{K}π$ and $η\pipi$ are determined.

11 pages, 12 figures, 4 table

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• Heavy quarkonium: progress, puzzles, and opportunities
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• chi_{cJ} Decays to h^+h^-h^0
• Study of charmonium decays to $K_S^{0}K\pi$ in the $B\to (K_S^{0}K\pi )K$ channels
• Probing scalar meson structures in ${\chi }_{c1}$ decays into pseudoscalar and scalar
• Exclusive decays ${\chi }_{cJ}\to K^{\ast }(892)K$ within the effective field theory framework
• Search for the decays $X(3872)\to K_S^0{K}^{\pm }{\pi }^{\mp }$ and $K^{\ast }(892)\bar{K}$ at BESIII
• Study the decays of ${\chi }_{cJ}(J=0,1,2)$ to light meson pairs with SU(3) flavor symmetry/breaking analysis