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Stefan Prestel. Photo.

Stefan Prestel

Associate senior lecturer

Stefan Prestel. Photo.

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

Author

  • Falko Dulat
  • Stefan Höche
  • Stefan Prestel

Summary, in English

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 Catani-Marchesini-Webber (CMW) scheme.

Publishing year

2018-10-01

Language

English

Publication/Series

Physical Review D

Volume

98

Issue

7

Document type

Journal article

Publisher

American Physical Society

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 2470-0010