ZU-TH 23/13 Herwig++ 2.7 Release Note

A new release of the Monte Carlo event generator Herwig++ (version 2.7) is now avail-able. This version comes with a number of improvements including: an interface to the Universal FeynRules Output (UFO) format allowing the simulation of a wide range of new-physics models; developments of the Matchbox framework for next-to-leading or-der (NLO) simulations; better treatment of QCD radiation in heavy particle decays in new-physics models; a new tune of underlying event and colour connection parameters that allows a good simultaneous description of both Tevatron and LHC underlying event data and the double-parton scattering parameter σeff