Yingchun Zhu

activity

20032025

J / ψ \to ϕ π^{+} π^{-}

and

ϕ K^{+} K^{-}

280 citations · 924 across the 29 of their papers we have counts for

collaborators

Showing 2003Show all

6 papers · 1 filter

hep-ex2003★ 32 cited

First observation of psi(2S)-->K_S K_L

J. Z. Bai

The decay psi(2S)-->K_S K_L is observed for the first time using psi(2S) data collected with the Beijing Spectrometer (BESII) at the Beijing Electron Positron Collider (BEPC); the…

hep-ex2003★ 14 cited

Measurement of Branching Ratios for $η_{c}$ Hadronic Decays

J. Z. Bai

In a sample of 58 million $J / ψ$ events collected with the BES II detector, the process J/ $ψ \to γ η_{c}$ is observed in five decay channels: $η_{c} \to K^{+} K^{-} π^{+} π^{-}$ , $π^{+} π^{-} π^{+} π^{-}$ , $K^\…

hep-ex2003★ 62 cited

Partial Wave Analyses of $J / ψ \to γ K^{+} K^{-}$ and $γ K_{S}^{0} K_{S}^{0}$

J. Z. Bai et al

Results are presented on $J / ψ$ radiative decays to $K^{+} K^{-}$ and $K_{S}^{0} K_{S}^{0}$ based on a sample of 58M $J / ψ$ events taken with the BES II detector. A partial wave analysis is carrie…

hep-ex2003★ 5 cited

Measurement of Inclusive Monmentum Spectra and Multiplicity Distributions of Charged Particles at $s \sim 2 - 5$ GeV

BES Collaboration, J. Z. Bai

Inclusive momentum spectra and multiplicity distributions of charged particles measured with BESII detector at center of mass energies of 2.2,2.6,3.0,3.2,4.6 and 4.8 GeV are presen…

hep-ex2003★ 15 cited

Search for Lepton Flavor Violation Process J/ $ψ \to e μ$

J. Z. Bai

Using a sample of 5.8X10E7 J/ $ψ$ events, the Beijing Spectrometer experiment has searched for the decay J/ $ψ \to e μ$ . Four candidates, consistent with the estimated background, are…

hep-ex2003★ 23 cited

Measurements of the Mass and Full-Width of the $η_{c}$ Meson

J. Z. Bai

In a sample of 58 million $J / ψ$ events collected with the BES II detector, the process J/ $ψ \to γ η_{c}$ is observed in five different decay channels: $γ K^{+} K^{-} π^{+} π^{-}$ , $γ π^{+} π^{-} π^{+} π^{-}$ ,…

First observation of psi(2S)-->K_S K_L

Measurement of Branching Ratios for ηc​ Hadronic Decays

Partial Wave Analyses of J/ψ→γK+K− and γKS0​KS0​

Measurement of Inclusive Monmentum Spectra and Multiplicity Distributions of Charged Particles at s​∼2−5 GeV

Search for Lepton Flavor Violation Process J/ψ→eμ

Measurements of the Mass and Full-Width of the ηc​ Meson

Measurement of Branching Ratios for $η_{c}$ Hadronic Decays

Partial Wave Analyses of $J / ψ \to γ K^{+} K^{-}$ and $γ K_{S}^{0} K_{S}^{0}$

Measurement of Inclusive Monmentum Spectra and Multiplicity Distributions of Charged Particles at $s \sim 2 - 5$ GeV

Search for Lepton Flavor Violation Process J/ $ψ \to e μ$

Measurements of the Mass and Full-Width of the $η_{c}$ Meson