α_S from LEP

Abstract

Recent results on measurements of the strong coupling ${\alpha }_S$ from LEP are reported. These include analyses of the 4-jet rate using the Durham or Cambridge algorithm, of hadronic $Z^0$ decays with hard final state photon radiation, of scaling violations of the fragmentation function, of the longitudinal cross section, of the $Z^0$ lineshape and of hadronic $\tau$ lepton decays.

3 pages, 2 figures, invited parallel talk at EPS HEP 2007 Manchester, added comment on estimation of theory error in section 5 and new ref [10]

References in corpus (13)

• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Cosmological Parameters 2006
• Precision Electroweak Measurements on the Z Resonance
• The Physics of Hadronic Tau Decays
• Studies of Hadronic Event Structure in e+e- Annihilation from 30 GeV to 209 GeV with the L3 Detector
• Experimental Tests of Asymptotic Freedom
• QCD Corrections to Semi-Inclusive Hadron Production in Electron-Positron Annihilation at Two Loops
• Tests of Quantum Chromo Dynamics at e^+e^- Colliders
• Precision Determination of Heavy Quark Masses and the Strong Coupling Constant
• Measurement of the energy dependence of hadronic jet rates and the strong coupling alpha_s from the four-jet rate with the DELPHI detector at LEP
• Measurement of the Strong Coupling alpha s from Four-Jet Observables in e+e- Annihilation
• Measurement of the Strong Coupling alpha_s from the Four-Jet Rate in e+e- Annihilation using JADE data
• Theoretical uncertainties for measurements of alpha_s from electroweak observables

Cited by in corpus (1)

• Calculating the Jet Quenching Parameter $\hat{q}$ in Lattice Gauge Theory