34 papers
Measurement of χ_cJ--> K+K-K+K-
BES Collaboration, M. AblikimJ
Using 14M psi(2S) events taken with the BES-II detector, chi_cJ-->K+K-K+K- decays are studied. For the four-kaon final state, the branching fractions are B(chi_c0,1,2 -->K+K-K+K-)=…
Search for Invisible Decays of and in and
BES Collaboration
Using a data sample of decays collected with the BES II detector at the BEPC, searches for invisible decays of and in to and $ϕη^\pr…
Study of the psi(2S) decay to p pbar pi+ pi-
J. G. Bian
The branching ratios of psi(2S)-->p pbar Pi+ pi- and psi(2S)-->p pbar omega, omega--> pi+ pi- pi0 are measured and the pi+ pi- invariant mass distribution in the first decay is dis…
Pseudoscalar production at omega omega threshold in J/psi -> gamma omega omega
Bes Collaboration
The decay channel J/ψ->gamma omega omega, omega -> pi+ pi- pi0 is analyzed using a sample of 5.8x10^7 J/psi events collected with the BESII detector. The omega omega invariant mass…
Search for the Rare Decays J/Psi --> Ds- e+ nu_e, J/Psi --> D- e+ nu_e, and J/Psi --> D0bar e+ e-
BES Collaboration
We report on a search for the decays J/Psi --> Ds- e+ nu_e + c.c., J/Psi --> D- e+ nu_e + c.c., and J/Psi --> D0bar e+ e- + c.c. in a sample of 5.8 * 10^7 J/Psi events collected wi…
Partial wave analyses of J/psi to gamma pi^+ pi^- and gamma pi^0 pi^0
M. Ablikim
Results are presented on J/psi radiative decays to pi^+pi^- and pi^0pi^0 based on a sample of 58M J/psi events taken with the BESII detector. Partial wave analyses are carried out…