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.
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