Matrix Elements, Parton Showers and Jet Merging: Jet Substructure and New Physics at the LHC

preprint2011arXivOpen access

Abstract

Events containing hadronically decaying heavy particles with large momentum, leading to so-called merged jets, are expected to play a significant role in both searches for new physics and measurements of Standard Model processes at the CERN Large Hadron Collider. In this article, a comparative study of the modeling of such merged jet topologies by different Monte-Carlo event generators is presented. The observed differences emphasize the need to refine such modeling based on the observation of Standard Model processes prior to claims of discovery.

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