4.4 Article

A modified CKKW matrix element merging approach to angular-ordered parton showers

Journal

JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 11, Pages -

Publisher

SPRINGER
DOI: 10.1088/1126-6708/2009/11/038

Keywords

Phenomenological Models; QCD

Funding

  1. Science and Technology Facilities Council
  2. Particle Physics and Astronomy Research Council
  3. European Union [MRTN-CT-2006-035606]
  4. Belgian Interuniversity Attraction Pole, PAI [P6/11]

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A modified version of the CKKW matrix element merging algorithm is presented, suitable for use in an angular-ordered parton shower, using truncated showers and forced splittings. The algorithm is implemented in the Herwig++ Monte Carlo event generator for the benchmark process e(+)e(-) -> hadrons. Results are presented at parton and hadron levels, demonstrating a smooth merging between the matrix elements and parton shower and an improved description of LEP data.

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