R-values in Low Energy e^+e^- Annihilation

Abstract

This presentation briefly summarizes the recent measurements of R-values in low energy e^+e^- annihilation. The new experiments aimed at reducing the uncertainties in R-values and performed with the upgraded Beijing Spectrometer (BESII) at Beijing Electron Positron Collider (BEPC) in Beijing and with CMD-2 and SND at VEEP-2M in Novosibirsk are reviewed and discussed.

17 pages, 10 figures, invited presentation at the XIX International Symposium on Lepton and Photon Interactions at High Energy, Stanford University, August 1999

References in corpus (5)

• Improved Determination of $\alpha (M_{\mathrm{Z}}^2$) and the Anomalous Magnetic Moment of the Muon
• Improved Determination of alpha_QED(M_Z^2) and the Anomalous Magnetic Moment of the Muon
• New results in rho^0 meson physics
• Few-Body States in Lund String Fragmentation Model
• Measurement of R Between 2-5 GeV

Cited by in corpus (2)

• Physics Accomplishments and Future Prospects of the BES Experiments at the BEPC Collider
• Highlights of recent BESIII results