$\tau$ mass and $R$ value measurements at BES

Abstract

A comprehensive review of the measurements of $\tau$ lepton mass and $R$ values in the energy region between $2-5$ GeV, achieved at the BES experiment, is presented. In addition to the evaluation of their impact on the test of Standard Model, we also highlighted the present status and the most recent developments. In particular, we made an extensive discussion on the prospects for future improvements at the BESIII experiment.

arXiv comment20 pages, 11 figures. arXiv admin note: text overlap with arXiv:hep-ex/9908046, arXiv:hep-ex/0012038 by other authors

References in corpus (27)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• Design and Construction of the BESIII Detector
• Precise measurement of the e+ e- to pi+ pi- (gamma) cross section with the Initial State Radiation method at BABAR
• Measurements of the Cross Section for e+e- -> hadrons at Center-of-Mass Energies from 2 to 5 GeV
• High-statistics measurement of the pion form factor in the rho-meson energy range with the CMD-2 detector
• Update of the e^+e^-\toπ^+π^- cross section measured by SND detector in the energy region 400<\sqrt{s}<1000 MeV
• Measurement of sigma(e+ e- -> pi+ pi-) from threshold to 0.85 GeV^2 using Initial State Radiation with the KLOE detector
• Observation of a resonance X(1835) in J/ψ--> γπ^+ π^- η^{\prime}
• Measurement of $\sigma (e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}\gamma (\gamma ))$ and the dipion contribution to the muon anomaly with the KLOE detector
• Measurement of the Total Cross Section for Hadronic Production by e+e- Annihilation at Energies between 2.6-5 Gev
• Improved Determination of alpha_QED(M_Z^2) and the Anomalous Magnetic Moment of the Muon
• Improved Determination of $\alpha (M_{\mathrm{Z}}^2$) and the Anomalous Magnetic Moment of the Muon
• A theory driven analysis of the effective QED coupling at $M_Z$
• Measurements of the cross sections for $e^{+}{e}^{-}\to \mathrm{hadrons}$ at 3.650, 3.6648, 3.773 GeV and the branching fraction for $\psi (3770)\to \mathrm{non}-D\bar{D}$
• $R$ value measurements for $e^{+}{e}^{-}$ annihilation at 2.60, 3.07 and 3.65 GeV
• The beam energy measurement system for the Beijing electron-positron collider
• BESII Detector Simulation
• Measurements of the continuum $R_{\mathrm{uds}}$ and $R$ values in $e^{+}{e}^{-}$ annihilation in the energy region between 3.650 and 3.872 GeV
• Measurement of the mass of the $\tau$-lepton and an upper limit on the mass difference between ${\tau }^{+}$ and ${\tau }^{-}$
• Precision Measurement of the Mass of the $\tau$ Lepton
• A measurement of the tau mass and the first CPT test with tau leptons
• Measurements of the $\tau$ Mass and Mass Difference of the ${\tau }^{+}$ and ${\tau }^{-}$} at BaBar
• A new determination of the QED coupling alpha(M_Z^2) lets the Higgs off the hook
• The onset of e^+e^- -> tau^+ tau^- at threshold revisited

Cited by in corpus (1)

• A fast simulation package for STCF detector