Search for the reaction $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{\chi }_{cJ}$ and a charmonium-like structure decaying to ${\chi }_{cJ}{\pi }^{\pm }$ between 4.18 and 4.60 GeV

Abstract

We search for the process $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{\chi }_{cJ}$ ($J=0,1,2$) and for a charged charmonium-like state in the ${\pi }^{\pm }{\chi }_{cJ}$ subsystem. The search uses data sets collected with the BESIII detector at the BEPCII storage ring at center-of-mass energies between 4.18 GeV and 4.60 GeV. No significant ${\pi }^{+}{\pi }^{-}{\chi }_{cJ}$ signals are observed at any center-of-mass energy, and thus upper limits are provided which also serve as limits for a possible charmonium-like structure in the invariant ${\pi }^{\pm }{\chi }_{cJ}$ mass.

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Cited by in corpus (1)

• Triangle relations for XYZ states