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Leading-color fully differential two-loop soft corrections to QCD dipole showers

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arxiv 1805.03757 v2 pith:MUTNIIYP submitted 2018-05-09 hep-ph

Falko Dulat , Stefan Höche , Stefan Prestel This is my paper · ORCID
classification hep-ph
keywords correctionsdifferentialfullyintegrationphaseschemespacetwo-loop
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We compute the next-to-leading order corrections to soft-gluon radiation differentially in the one-emission phase space. We show that their contribution to the evolution of color dipoles can be obtained in a modified subtraction scheme, such that both one- and two-emission terms are amenable to Monte-Carlo integration. The two-loop cusp anomalous dimension is recovered naturally upon integration over the full phase space. We present two independent implementations of the new algorithm in the two event generators Pythia and Sherpa, and we compare the resulting fully differential simulation to the CMW scheme.

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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. Recoil-Safe Subtraction, Matching and Merging in e+e- to hadrons

    hep-ph 2025-07 conditional novelty 6.0 of 10

    The Alaric shower is matched to NLO matrix elements and merged to five jets in e+e- to hadrons, with new analytic subtraction terms validated against Catani-Seymour subtraction.

  2. High dimensional parameter tuning for event generators

    hep-ph 2019-08 conditional novelty 6.0 of 10

    Autotunes splits event generator parameter spaces into correlated subspaces and assigns automatic observable weights, enabling iterative Professor-based tuning in higher dimensions than the standard approach.

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