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T: Fachverband Teilchenphysik
T 76: Experimentelle Methoden 2
T 76.6: Vortrag
Donnerstag, 12. März 2009, 18:00–18:15, A022
Delphes, a framework for fast simulation of a general purpose LHC detector — •Xavier Rouby1,2 and Severine Ovyn1 — 1Center for Particle Physics and Phenomenology, Universite catholique de Louvain, Belgique — 2now in: Physikalisches Institut, Albert-Ludwigs-Universitat Freiburg
Knowing whether theoretical predictions are visible and measurable in a High Energy experiment is always delicate, due to the complexity of the related detectors, DAQ chain and software. We introduce here a new framework, Delphes, for fast simulation of a general purpose experiment. The simulation includes a tracking system, embedded into a magnetic field, calorimetry and a muon system, and possible very forward detectors arranged along the beamline.
The framework is interfaced to standard file format from event generators (e.g. Les Houches Event File) and outputs observable analysis data objects, like missing transverse energy and collections of electrons or jets.
The simulation of the detector response takes into account the detector resolution, and usual reconstruction algorithms for complex objects, like FastJet. A simplified preselection can also be applied on processed data for trigger emulation. Detection of very forward scattered particles relies on the transport in beamlines with the Hector software. Finally, the FROG 2D/3D event display is used for visualisation of the collision final states.
An overview of Delphes is given as well as a few use-cases for illustration.