309 citations · 762 across the 10 of their papers we have counts for
9 papers · 1 filter
A Study of J/psi-->gamma gamma V(rho,phi) Decays with the BESII Detector
BES Collaboration
Using a sample of events collected with the BESII detector, radiative decays , where or , are studied. A resonance around 1420 MeV/c (…
ψ(2S) Decays into $\J$ plus Two Photons
BES collaboration
Using $γγJ/ψ, J/ψ\ra e^+ e^-$ and events from a sample of $\psip$ decays collected with the BESII detector, the branching fractions for $\psip\ra π^0\J$…
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…
Evidence of psi(3770) non-DD-bar Decay to J/psi pi+pi-
BES Collaboration
Evidence of decays to a non- final state is observed. A total of $ψ(3770) \to \PPJP$ events are obtained from a data sample of 27.7 $\r…
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-…
Study of N* Production from J/Psi--> p pbar eta
J. Z. Bai, ; H. C. Chiang, G. X. Peng +2
Data are presented on the reaction J/psi--> p pbar eta using 7.8 million J/psi triggers collected by the BEjing Spectrometer (BES). A partial wave analysis is performed. A clear en…
Measurement of the Total Cross Section for Hadronic Production by e+e- Annihilation at Energies between 2.6-5 Gev
J. Z. Bai
Using the upgraded Beijing Spectrometer (BESII), we have measured the total cross section for annihilation into hadronic final states at center-of-mass energies of 2.6, 3.…
Study of the Hadronic Decays of χ_c States
J. Z. Bai
Hadronic decays of the P-wave spin-triplet charmonium states χ_cJ (J=0,1,2) are studied using a sample of ψ(2S) decays collected by the BES detector operating at the BEPC storage r…
Branching Fractions for and
J. Z. Bai
We report the first measurements of the branching fractions: and . The $…