309 citations · 2.4k across the 71 of their papers we have counts for
10 papers · 1 filter
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…
Measurements of decays into Vector- Tensor final states
J. Z. Bai et al
Decays of the into vector plus tensor meson final states have been studied with 14 million events collected with the BESII detector. Branching fractions of $ψ(2S) \…
Improved measurement of the branching ratio of J/psi-->K_S K_L
J. Z. Bai
The branching ratio of J/psi-->K_S K_L is measured with improved precision to be B(J/psi-->K_S K_L) = (1.82\pm 0.04\pm 0.13)\times 10^{-4}. using J/psi data collected with the Beij…
Measurement of Branching Ratios for Hadronic Decays
J. Z. Bai
In a sample of 58 million events collected with the BES II detector, the process J/ is observed in five decay channels: , , $K^\…
Partial Wave Analyses of and
J. Z. Bai et al
Results are presented on radiative decays to and based on a sample of 58M events taken with the BES II detector. A partial wave analysis is carrie…
Measurement of Inclusive Monmentum Spectra and Multiplicity Distributions of Charged Particles at 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…
First Evidence of Lambda Lambda-bar in χ_cJ Decays
BES Collaboration, J. Z. Bai
The first observation of χ_cJ (J=0,1,2) decays to Lambda Lambda-bar is reported using ψ(2S) data collected with the BESII detector at the BEPC. The branching ratios are determined…
Observation of a near-threshold enhancement in th p pbar mass spectrum from radiative J/psi-->gamma p pbar decays
BES Collaboration, J. Z. Bai, Y. Ban +1
We observe a narrow enhancement near 2mp in the invariant mass spectrum of ppbar pairs from radiative J/psi-->gamma ppbar decays. The enhancement can be fit with either an S- or P-…
Search for Lepton Flavor Violation Process J/
J. Z. Bai
Using a sample of 5.8X10E7 J/ events, the Beijing Spectrometer experiment has searched for the decay J/. Four candidates, consistent with the estimated background, are…
Measurements of the Mass and Full-Width of the Meson
J. Z. Bai
In a sample of 58 million events collected with the BES II detector, the process J/ is observed in five different decay channels: , ,…