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March 12, 2009225 citationsOpen Access

Delphes, a framework for fast simulation of a generic collider experiment

SOS. OvynXRX. RoubyVLVincent Lemaître

Key Points

  • To develop a fast, modular C++ framework capable of simulating generic collider detector responses for high-energy physics analyses.
  • Modeled subdetector systems including tracking within magnetic fields, calorimeter granularity, and muon identification.
  • Interfaced the framework with standard event formats like HepMC and Les Houches Event Files, while coupling HECTOR software for forward beamline transport.
  • Integrated simplified preselection algorithms for trigger emulation and FROG software for 2D and 3D final-state visualization.
  • Successfully outputs reconstructed physics observables, including collections of jets, isolated leptons, and missing transverse energy.
  • Accurately accounts for detector resolution effects and magnetic field distortions across multipurpose and forward detector geometries.

Abstract

This paper presents a new C++ framework, DELPHES, performing a fast multipurpose detector response simulation. The simulation includes a tracking system, embedded into a magnetic field, calorimeters and a muon system, and possible very forward detectors arranged along the beamline. The framework is interfaced to standard file formats (e.g. Les Houches Event File or HepMC) and outputs observables such as isolated leptons, missing transverse energy and collection of jets which can be used for dedicated analyses. The simulation of the detector response takes into account the effect of magnetic field, the granularity of the calorimeters and subdetector resolutions. A simplified preselection can also be applied on processed events 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.

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Cite This Study

Ovyn et al. (2009) studied this question.

synapsesocial.com/papers/6a0ef572a14f152feafa130ehttps://doi.org/10.48550/arxiv.0903.2225
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