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Title: Event generation with SHERPA 1.1

Journal Article · · JHEP

In this paper the current release of the Monte Carlo event generator Sherpa, version 1.1, is presented. Sherpa is a general-purpose tool for the simulation of particle collisions at high-energy colliders. It contains a very flexible tree-level matrix-element generator for the calculation of hard scattering processes within the Standard Model and various new physics models. The emission of additional QCD partons off the initial and final states is described through a parton-shower model. To consistently combine multi-parton matrix elements with the QCD parton cascades the approach of Catani, Krauss, Kuhn and Webber is employed. A simple model of multiple interactions is used to account for underlying events in hadron--hadron collisions. The fragmentation of partons into primary hadrons is described using a phenomenological cluster-hadronisation model. A comprehensive library for simulating tau-lepton and hadron decays is provided. Where available form-factor models and matrix elements are used, allowing for the inclusion of spin correlations/ effects of virtual and real QED corrections are included using the approach of Yennie, Frautschi and Suura.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
DOE Contract Number:
AC02-07CH11359
OSTI ID:
1861349
Report Number(s):
FERMILAB-PUB-08-477-T; SLAC-PUB-13420; ZU-TH-17-08; DCPT-08-138; IPPP-08-69; EDINBURGH-2008-30; MCNET-08-14; arXiv:0811.4622; oai:inspirehep.net:803708
Journal Information:
JHEP, Vol. 02
Country of Publication:
United States
Language:
English

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