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Large logarithm behaviour ofe + e − jet cross sections and event shape distributions inO(α 2 s )

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Zeitschrift für Physik C: Particles and Fields

Abstract

We have calculated the leading and next-to-leading logarithm coefficients ofO(α 2 s )e + e − annihilation jet cross sections, thrust distribution and energy-energy correlation in the two-jet limit when the jet resolution and the event shape variables vanish. We have compared our results with expectations based on leading logarithm approximations used to resum the pertubative cross sections where this is possible. There is good agreement for the leading and next-to-leading coefficients of jet cross sections in the Durham scheme. Also for the thrust distribution and energy-energy correlation we find results which are consistent with the leading logarithm predictions.

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Authors and Affiliations

  1. II. Institut für Theoretische Physik, Universität Hamburg, D-22761, Hamburg, Germany

    G. Kramer

  2. Fakultät für Physik, Universität Bielefeld, D-33615, Bielefeld, Germany

    H. Spiesberger

Authors
  1. G. Kramer
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  2. H. Spiesberger
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Supported by Bundesministerium für Forschung und Technologie, Bonn, Germany, Contract 05 6HH93P(5)

Supported by the EEC Program ‘Human Capital and Mobility’ through Network ‘Physics at High Energy Colliders’ under Contract CHRX-CT93-0357 (DG12 COMA)

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Kramer, G., Spiesberger, H. Large logarithm behaviour ofe + e − jet cross sections and event shape distributions inO(α 2 s ). Z. Phys. C - Particles and Fields 71, 111–121 (1996). https://doi.org/10.1007/s002880050154

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  • DOI: https://doi.org/10.1007/s002880050154

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