Eur. Phys. J. C (2012) 72: 2187
https://doi.org/10.1140/epjc/s10052-012-2187-7

Special Article - Tools for Experiment and Theory

Dipole showers and automated NLO matching in Herwig++

¹ DESY, Notkestrasse 85, 22607, Hamburg, Germany
² Institut für Theoretische Physik, KIT, 76128, Karlsruhe, Germany

^* e-mail: simon.plaetzer@desy.de

Received: 10 November 2011
Revised: 19 August 2012
Published online: 14 November 2012

Abstract

We report on the implementation of a coherent dipole shower algorithm along with an automated implementation for dipole subtraction and for performing powheg- and mc@nlo-type matching to next-to-leading order (NLO) calculations. Both programs are implemented as add-on modules to the event generator Herwig++. A preliminary tune of parameters to data acquired at LEP, HERA and Drell-Yan pair production at the Tevatron has been performed, and we find an overall very good description which is slightly improved by the NLO matching.