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An Analytic Initial-State Parton Shower

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arxiv 1112.1039 v2 pith:AMSU4ZES submitted 2011-12-05 hep-ph hep-ex

W. Kilian , J. Reuter , S. Schmidt , D. Wiesler This is my paper · ORCID
classification hep-phhep-ex
keywords showerpartonalgorithmanalyticeventinitial-stateknownprobability
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We present a new algorithm for an analytic parton shower. While the algorithm for the final-state shower has been known in the literature, the construction of an initial-state shower along these lines is new. The aim is to have a parton shower algorithm for which the full analytic form of the probability distribution for all branchings is known. For these parton shower algorithms it is therefore possible to calculate the probability for a given event to be generated, providing the potential to reweight the event after the simulation. We develop the algorithm for this shower including scale choices and angular ordering. Merging to matrix elements is used to describe high-energy tails of distributions correctly. Finally, we compare our results with those of other parton showers and with experimental data from LEP, Tevatron and LHC.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. New developments in the Whizard event generator

    hep-ph 2024-12 unverdicted novelty 4.0 of 10

    Whizard's recent and planned developments are summarized: NLO EW automation, loop-induced processes, UFO2 support, GPU integration, and future EW PDFs, with several items still in progress.

  2. Challenges for Monte Carlo generators

    hep-ph 2024-12 unverdicted

    A review of Monte Carlo generator capabilities and challenges for future lepton colliders, covering beams, QED/EW corrections, showers, BSM simulation, and performance.

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