Precision measurements of alphas at HERA

Abstract

Recent determinations of alphas(Mz) from the H1 and ZEUS Collaborations using inclusive-jet cross-section measurements in neutral current deep inelastic scattering at high Q2 are presented. A combined value of alphas(mz)=0.1198 +- 0.0019 (exp.) +- 0.0026 (th.) was obtained from these measurements. The determinations of alphas at various scales clearly show the running of the coupling from HERA jet data alone and in agreement with the prediction of QCD.

5 pages, 4 figures

References in corpus (3)

• Determination of the QCD Coupling ${\alpha }_s$
• Theoretical uncertainties on alpha_s from event-shape variables in e+e- annihilations
• Jet-radius dependence of inclusive-jet cross sections in deep inelastic scattering at HERA

Cited by in corpus (10)

• The 2009 World Average of ${\alpha }_s$
• Deep Inelastic Electron-Nucleon Scattering at the LHC
• World Summary of ${\alpha }_s$ (2012)
• Alpha_s(M_Z) from hadronic tau decays
• Determination of the strong coupling constant from the inclusive jet cross section in ppbar collisions at sqrt(s)=1.96 TeV
• The Realistic Lattice Determination of alpha_s(M_Z) Revisited
• NLO QCD corrections to five-jet production at LEP and the extraction of alpha_s(M_Z)
• Inclusive-jet photoproduction at HERA and determination of alphas
• A Mixed Tau-Electroproduction Sum Rule for V_us
• Review of physics results from the Tevatron: QCD physics