  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.
