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General-purpose event generators for LHC Physics.

Buckley, A. and Butterworth, J. and Gieseke, S. and Grellscheid, D. and Hoche, S. and Hoeth, H. and Krauss, F. and Lonnblad, L. and Nurse, E. and Richardson, P. and Schumann, S. and Seymour, M.H. and Sjostrand, T. and Skands, P. and Webber, B. (2011) 'General-purpose event generators for LHC Physics.', Physics reports., 504 (5). pp. 145-233.


We review the physics basis, main features and use of general-purpose Monte Carlo event generators for the simulation of proton–proton collisions at the Large Hadron Collider. Topics included are: the generation of hard scattering matrix elements for processes of interest, at both leading and next-to-leading QCD perturbative order; their matching to approximate treatments of higher orders based on the showering approximation; the parton and dipole shower formulations; parton distribution functions for event generators; non-perturbative aspects such as soft QCD collisions, the underlying event and diffractive processes; the string and cluster models for hadron formation; the treatment of hadron and tau decays; the inclusion of QED radiation and beyond Standard Model processes. We describe the principal features of the Ariadne, Herwig++, Pythia 8 and Sherpa generators, together with the Rivet and Professor validation and tuning tools, and discuss the physics philosophy behind the proper use of these generators and tools. This review is aimed at phenomenologists wishing to understand better how parton-level predictions are translated into hadron-level events as well as experimentalists seeking a deeper insight into the tools available for signal and background simulation at the LHC.

Item Type:Article
Keywords:QCD, Hadron colliders, Monte Carlo simulation.
Full text:(NA) Not Applicable
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Publisher statement:NOTICE: this is the author’s version of a work that was accepted for publication in Physics Reports. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Physics Reports, 504, 5, July 2011, 10.1016/j.physrep.2011.03.005.
Date accepted:No date available
Date deposited:No date available
Date of first online publication:July 2011
Date first made open access:No date available

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