CERN Accelerating science

Article
Report number arXiv:1108.6172 ; CERN-TH-2011-133 ; MCNET-11-19 ; CERN-TH-2011-133; MCNET-11-19 ; MCNET-11-19 ; CERN-PH-TH-2011-133
Title Timelike Dipole-Antenna Showers with Massive Fermions
Author(s) Gehrmann-De Ridder, Aude (Zurich, ETH) ; Ritzmann, Mathias (Zurich, ETH) ; Skands, Peter Z. (CERN)
Publication 2012
Imprint 01 Sep 2011
Number of pages 50
Note Comments: 50 pages
50 pages; v3: corrected typo in eq.(35)
In: Phys. Rev. D 85 (2012) 014013
DOI 10.1103/PhysRevD.85.014013
Subject category Particle Physics - Phenomenology
Abstract We present a complete formalism for final-state (timelike) dipole-antenna showers including fermion masses, but neglecting polarization and finite-width effects. We make several comparisons of tree-level expansions of this shower algorithm to fixed-order matrix elements for hadronic Z decays, up to and including Z to 6 partons, to which the algorithm can be consistently matched over all of phase space. We also compare to analytical resummations at the NLL level. The shower algorithm has been implemented in the publicly available VINCIA plugin to the PYTHIA 8 event generator, which enables us to compare to experimental data at the fully hadronized level. We also include comparisons to selected observables in b-tagged Z decays.
Copyright/License Preprint: © 2011-2025 CERN (License: CC-BY-3.0)



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 Record created 2011-09-01, last modified 2018-12-07


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