Lei Zhang

most citedPartial Wave Analysis of

J / ψ \to γ (π^{+} π^{-} π^{+} π^{-})

54 citations · 112 across the 5 of their papers we have counts for

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5 papers · 1 filter

hep-ex2003★ 6 cited

Search for K_S K_S in J/psi and psi(2S) decays

J. Z. Bai, BES Collaboration

The CP violating processes J/psi-->K_S K_S and psi(2S)-->K_S K_S are searched for using samples of 58 million J/psi and 14 million psi(2S) events collected with the Beijing Spectro…

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★ 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: $γ K^{+} K^{-} π^{+} π^{-}$ , $γ π^{+} π^{-} π^{+} π^{-}$ ,…

hep-ex1999★ 54 cited

Partial Wave Analysis of $J / ψ \to γ (π^{+} π^{-} π^{+} π^{-})$

J. Z. Bai

BES data on $J / ψ \to γ (π^{+} π^{-} π^{+} π^{-})$ have been analyzed into partial waves. We fit with resonances having $J^{P C} = 2^{++}$ at 1275 MeV, $0^{++}$ at 1500 MeV, $2^{++}$ at…

Search for K_S K_S in J/psi and psi(2S) decays

Measurement of Branching Ratios for ηc​ Hadronic Decays

Search for Lepton Flavor Violation Process J/ψ→eμ

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

Partial Wave Analysis of J/ψ→γ(π+π−π+π−)

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

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

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

Partial Wave Analysis of $J / ψ \to γ (π^{+} π^{-} π^{+} π^{-})$