J.-Y. Zhang

collaborators

2 papers

hep-ex2016

Observation of $e^{+} e^{-} \to η^{'} J / ψ$ at center-of-mass energies between 4.189 and 4.600 GeV

M. Ablikim, M. N. Achasov, S. Ahmed +428

The process $e^{+} e^{-} \to η^{'} J / ψ$ is observed for the first time with a statistical significance of $8.6 σ$ at center-of-mass energy $s = 4.226$ GeV and $7.3 σ$ at $\…

hep-ex2016

Observation of an anomalous line shape of the $η^{'} π^{+} π^{-}$ mass spectrum near the $p p ˉ$ mass threshold in $J / ψ \to γ η^{'} π^{+} π^{-}$

M. Ablikim, M. N. Achasov, S. Ahmed +431

Using $1.09 \times 1 0^{9}$ $J / ψ$ events collected by the BESIII experiment in 2012, we study the $J / ψ \to γ η^{'} π^{+} π^{-}$ process and observe a significant abrupt change…

Observation of e+e−→η′J/ψ at center-of-mass energies between 4.189 and 4.600 GeV

Observation of an anomalous line shape of the η′π+π− mass spectrum near the ppˉ​ mass threshold in J/ψ→γη′π+π−

Observation of $e^{+} e^{-} \to η^{'} J / ψ$ at center-of-mass energies between 4.189 and 4.600 GeV

Observation of an anomalous line shape of the $η^{'} π^{+} π^{-}$ mass spectrum near the $p p ˉ$ mass threshold in $J / ψ \to γ η^{'} π^{+} π^{-}$