Johannes Bellm, Gavin Bewick, Silvia Ferrario Ravasio, Stefan Gieseke, David Grellscheid, Patrick Kirchgae├čer, Mohammad R. Masouminia, Graeme Nail, Andreas Papaefstathiou, Simon Platzer, Michael Rauch, Christian Reuschle, Peter Richardson, Andrzej Siodmok, Michael H. Seymour, Stephen Webster
Herwig 7.2 Release Note

Abstract

A new release of the Monte Carlo event generator Herwig (version 7.2) is now available. This version introduces a number of improvements over the major version 7.0, notably: multi-jet merging with the dipole shower at LO and NLO QCD; spin correlations in both the dipole and angular-ordered parton showers; an improved choice of evolution variable in the angular-ordered parton shower; improvements to mass effects and top decays in the dipole shower, improvements to the simulation of multiple-parton interactions, including diffractive processes; a new model for baryonic colour reconnection; improvements to strangeness production; as well as a new tune of the hadronisation parameters and support for generic Lorentz structures in BSM models. This article illustrates new features of versions 7.1 and 7.2.

LU TP 19-57