Precision Measurements of alphas at HERA

Details Precision Measurements of alphas at HERA Precision Measurements of alphas at HERA

2005-06-14

arxiv.org/abs/hep-ex/0506035v1

Physics

High Energy Physics

High Energy Physics - Experiment

4 pages, 2 figures. Talk given in the XIII International Workshop on Deep Inelastic Scattering, April 27 - May 1, 2005, Madiso

Scientific paper

The precision measurements of the strong coupling constant, alphas, and its energy-scale dependence carried out at HERA by the H1 and ZEUS Collaborations are reviewed. An average value of alphas(Mz) = 0.1186 +- 0.0011 (exp.) +- 0.0050 (th.) is obtained from these measurements. The combined HERA determinations of the energy-scale dependence of alphas clearly show the running of alphas from jet data alone and are in agreement with the running of the coupling as predicted by QCD.

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