Determination of the Strong Coupling \boldmath{\as} from hadronic Event Shapes and NNLO QCD predictions using JADE Data

Abstract

Event Shape Data from $e^{+}{e}^{-}$ annihilation into hadrons collected by the JADE experiment at centre-of-mass energies between 14 GeV and 44 GeV are used to determine the strong coupling ${\alpha }_S$. QCD predictions complete to next-to-next-to-leading order (NNLO), alternatively combined with resummed next-to-leading-log-approximation (NNLO+NLLA) calculations, are used. The combined value from six different event shape observables at the six JADE centre-of-mass energies using the NNLO calculations is ${\alpha }_S(M_Z)$= 0.1210 +/- 0.0007(stat.) +/- 0.0021(expt.) +/- 0.0044(had.) +/- 0.0036(theo.) and with the NNLO+NLLA calculations the combined value is ${\alpha }_S$= 0.1172 +/- 0.0006(stat.) +/- 0.0020(expt.) +/- 0.0035(had.) +/- 0.0030(theo.) . The stability of the NNLO and NNLO+NLLA results with respect to missing higher order contributions, studied by variations of the renormalisation scale, is improved compared to previous results obtained with NLO+NLLA or with NLO predictions only. The observed energy dependence of ${\alpha }_S$ agrees with the QCD prediction of asymptotic freedom and excludes absence of running with 99% confidence level.

9 pages, EPHJA style, 4 figures, corresponds to published version with JADE author list

References in corpus (8)

• Measurement of $J/\psi$ helicity distributions in inelastic photoproduction at HERA
• NNLO corrections to event shapes in $e^{+}{e}^{-}$ annihilation
• Experimental Tests of Asymptotic Freedom
• First determination of the strong coupling constant using NNLO predictions for hadronic event shapes in e^+e^- annihilations
• Tests of Quantum Chromo Dynamics at e^+e^- Colliders
• Non-Perturbative Contribution to the Thrust Distribution in $e^{+}{e}^{-}$ Annihilation
• Matching NLLA+NNLO for event shape distributions
• Measurement of the Strong Coupling alpha_s from the Four-Jet Rate in e+e- Annihilation using JADE data

Cited by in corpus (55)

• QCD and strongly coupled gauge theories: challenges and perspectives
• The 2009 World Average of ${\alpha }_s$
• Thrust at N^3LL with Power Corrections and a Precision Global Fit for alphas(mZ)
• 50 Years of Quantum Chromodynamics
• Antenna subtraction at NNLO with hadronic initial states: initial-final configurations
• Two-Loop Soft Corrections and Resummation of the Thrust Distribution in the Dijet Region
• Antenna subtraction at NNLO with hadronic initial states: double real initial-initial configurations
• Antenna subtraction at NNLO with hadronic initial states: double real radiation for initial-initial configurations with two quark flavours
• Antenna subtraction at NNLO with hadronic initial states: real-virtual initial-initial configurations
• NNLO moments of event shapes in e+e- annihilation
• Antenna subtraction for gluon scattering at NNLO
• EERAD3: Event shapes and jet rates in electron-positron annihilation at order ${\alpha }_s^3$
• World Summary of ${\alpha }_s$ (2012)
• Power corrections in the dispersive model for a determination of the strong coupling constant from the thrust distribution
• Hadronization effects in event shape moments
• Precise determination of the strong coupling constant at NNLO in QCD from the three-jet rate in electron--positron annihilation at LEP
• QCD resummation for hadronic final states
• Antenna subtraction for the production of heavy particles at hadron colliders
• The two-jet rate in e^+e^- at next-to-next-to-leading-logarithmic order
• Determination of αS using OPAL hadronic event shapes at sqrt(s) = 91 - 209 GeV and resummed NNLO calculations
• Determination of the strong coupling constant ${\alpha }_s$ from transverse energy-energy correlations in multijet events at $\sqrt{s}=8$ TeV using the ATLAS detector
• Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at sqrt(s) = 7 TeV
• Measurement of the strong coupling alpha_S from the three-jet rate in e+e- - annihilation using JADE data
• Fitting the Strong Coupling Constant with Soft-Drop Thrust
• Soft-Drop Thrust
• $C$-parameter hadronisation in the symmetric 3-jet limit and impact on ${\alpha }_s$ fits
• Electroweak corrections to hadronic event shapes and jet production in e+e- annihilation
• Fits of ${\alpha }_s$ using power corrections in the three-jet region
• Linear power corrections to $e^{+}{e}^{-}$ shape variables in the three-jet region
• Precision physics with inclusive QCD processes
• Resummed predictions for jet-resolution scales in multijet production in $e^{+}{e}^{-}$ annihilation
• NNLO QCD corrections to event orientation in e+e- annihilation
• Jet algorithms in electron-positron annihilation: Perturbative higher order predictions
• Running of the Charm-Quark Mass from HERA Deep-Inelastic Scattering Data
• Determination of the strong coupling constant from transverse energy$-$energy correlations in multijet events at $\sqrt{s}=13$ TeV with the ATLAS detector
• Cutting Multiparticle Correlators Down to Size
• Measurement of dijet azimuthal decorrelations in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector and determination of the strong coupling
• Strong coupling constant and quark masses from lattice QCD
• Data Preservation in High Energy Physics
• Modelling theoretical uncertainties in phenomenological analyses for particle physics
• Prospects for strong coupling measurement at hadron colliders using soft-drop jet mass
• The global geometrical property of jet events in high-energy nuclear collisions
• Data Preservation in High Energy Physics
• Data Preservation in High Energy Physics - why, how and when?
• The JADE Experiment at the PETRA $e^{+}{e}^{-}$ collider -- history, achievements and revival
• Data Preservation in High Energy Physics
• Measurement of the strong coupling alpha_S in e+e- annihilation using the three-jet rate
• Matching of Resummed NLLA with Fixed NNLO for Event Shapes
• One-loop Electro-Weak Corrections to the Event Orientation of e+e- into 3 jet Processes
• Physics case for low-$\sqrt{s}$ QCD studies at FCC-ee
• Determination of the Strong Coupling Constant ${\alpha }_s$ from Inclusive Semi-leptonic $B$ Meson Decays
• Event Shape Variables at NLLA+NNLO
• Intrinsic coupling between transverse spherocity and elliptic flow in heavy-ion collisions
• Infrared Renormalons in Collider Processes
• DPHEP: From Study Group to Collaboration