Abstract
Using a sample of $1.31 \times 10^{9}$ $J/\psi$ events collected by the BESIII detector at BEPCII during 2009 and 2012, we study the $J/\psi \rightarrow \omega \eta' \pi^{+}\pi^{-}$ hadronic process. For the first time, we measure the branching ratio $B(J/\psi \rightarrow \omega \eta' \pi^{+}\pi^{-}) = (1.12 \pm 0.02 \pm 0.13) \times 10^{-3}$. We search for the $X(1835)$ state in the $\eta' \pi^{+}\pi^{-}$ invariant mass spectra. No evidence is found and we estimate the upper limit on the branching fraction at 90% confidence level to be $B(J/\psi \rightarrow \omega X(1835), \, X(1835) \rightarrow \eta' \pi^{+}\pi^{-}) < 6.2 \times 10^{-5}$.
Highlights
23bINFN and University of Perugia, I-06100, Perugia, Italy 24aINFN Sezione di Ferrara, I-44122, Ferrara, Italy 24bUniversity of Ferrara, I-44122, Ferrara, Italy
Using a sample of 1.31 × 109 J∕ψ events collected by the BESIII detector at BEPCII
We search for the Xð1835Þ state in the η0πþπ− invariant mass spectra
Summary
Measurement of the branching fraction of J∕ψ → ωη0π + π − and search for J∕ψ → ωX(1835), X(1835) → η0π + π − decay. H. Liu,[38] Fang Liu,[1] Feng Liu,[6] H. A. Liu,[1,42,46] Zhiqing Liu,[26] Y. Z. Wang,[35] Meng Wang,[1,46] P. T. Zhang,[52,42] Yang Zhang,[1] Yao Zhang,[1] Yi Zhang,9,§§ Yu Zhang,[46] Z.
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