Dipole showers and automated NLO matching in Herwig++

The European Physical Journal C

Simon Plätzer¹  Stefan Gieseke² 

[1] DESY, Notkestrasse 85, 22607, Hamburg, Germany;Institut für Theoretische Physik, KIT, 76128, Karlsruhe, Germany;

关键词: Transverse Momentum;    Parton Shower;    Subtraction Term;    Real Emission;    Final State Radiation;   

DOI  :  10.1140/epjc/s10052-012-2187-7

来源: Springer

【 摘 要 】

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.

【 授权许可】

CC BY