Results and Future Plans from Bes

Abstract

The values of $R=\sigma (e^{+}{e}^{-}\to hadrons)/\sigma (e^{+}{e}^{-}\to {\mu }^{+}{\mu }^{-})$ for 85 center-of-mass energies between 2 and 5 GeV are reported. Preliminary results using partial wave analysis for $J/\psi$ decays to $\gamma {\pi }^{+}{\pi }^{-}$, $\gamma K^{+}{K}^{-}$, $\varphi {\pi }^{+}{\pi }^{-}$ and $\varphi K^{+}{K}^{-}$ are presented. The BESIII/BEPCII, a project for the future of BES, is introduced.

5 pages, 7 fugures, invited talk for "e+e- physics at intermediate energies", April 30-May 2, SLAC

Cited by in corpus (4)

• Reexamining radiative decays of $1^{--}$ quarkonium into ${\eta }^{\prime }$ and $\eta$
• Exclusive Decay of $1^{--}$ Quarkonia and $B_c$ Meson into a Lepton Pair Combined with Two Pions
• CP Test in J/Psi -> gamma phi phi Decay
• R Measurements at High Q^2