Description
Simulated samples of various physics processes are a key ingredient
within analyses to unlock the physics behind LHC collision data. Samples
with more and more statistics are required to keep up with the
increasing amounts of recorded data. During sample generation,
significant computing time is spent on the reconstruction of charged
particle tracks from energy deposits which additionally scales with the
pileup conditions. In CMS, the Fast Simulation package is developed
providing a fast alternative to the standard simulation and
reconstruction work flow. It employs various techniques to emulate track
reconstruction effects in particle collision events amongst others.
Several analysis groups in CMS are utilizing the package, in particular
those requiring many samples to scan the parameter space of physics
models (e.g. SUSY) or for the purpose of estimating systematic
uncertainties. The strategies for and recent developments in this
emulation are presented which features a novel, flexible implementation
of tracking emulation while retaining a sufficient, tuneable accuracy.
| Primary Keyword (Mandatory) | Simulation |
|---|---|
| Secondary Keyword (Optional) | Reconstruction |
