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Direct Measurements of the Branching Fractions for Inclusive and Inclusive Semileptonic Decays of and Mesons
BES Collaboration
With singly-tagged samples selected from the data collected at and around 3.773 GeV with the BESII detector at the BEPC collider, we have measured the branching fractions…
First observation of J/ψand ψ(2S) decaying to n K^0_S\barΛ+c.c
BES Collaboration
The decays of $\jpsi$ and $\psip$ to are observed and measured for the first time, and the perturbative QCD ``12%'' rule is tested, based on $5.8 \times 10^7…
Search for the Invisible Decay of $\jpsi$ in
M. Ablikim, J. Z. Bai
Using 14.0 million \jpsi\psipto\jpsi$ peak i…
Search for the Rare Decays , , and
BES collaboration
Rare decay modes , , and are searched for using 5.77 events col…
Determination of the , , and resonance parameters
M. Ablikim
measurement data taken with the BESII detector at center-of-mass energies between 3.7 and 5.0 GeV is fitted to determine resonance parameters (mass, total width, electron width…
Measurements of the observed cross sections for light hadrons at 3.773 and 3.650 GeV
BES Collaboration
Using the data sets of 17.3 pb collected at 3.773 GeV and 6.5 pb collected at 3.650 GeV with the BESII detector at the BEPC collider, we have…