J. 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-ex2004

Measurements of J/psi --> p \bar{p}

J. Z. Bai

The process J/ψ--> p \bar{p} is studied using 57.7 X 10^6 J/ψevents collected with the BESII detector at the Beijing Electron Positron Collider. The branching ratio is determined t…

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

Measurements of J/psi --> p \bar{p}

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