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Karlsruhe 2011 – scientific programme

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T: Fachverband Teilchenphysik

T 79: Experimentelle Methoden II

T 79.2: Talk

Tuesday, March 29, 2011, 17:00–17:15, 30.23: 2-1

Parametrising Particle Flow Reconstruction for Fast Simulation of ILC Detectors — •Madalina Chera1,2, Mikael Berggren1, and Jenny List11DESY, 22603 Hamburg — 2Universität Hamburg, Inst f. Exp.-Physik, Luruper Chaussee 149, 22761 Hamburg

The physics program of the planned International Linear Collider (ILC) aims for very high precision in measurements and searches of physics beyond the Standard Model. This places a strong demand on the ILC detector's performance. One of the competing detector designs is the International Large Detector (ILD) which has been particularly optimised for the concept of the Particle Flow reconstruction, using a GEANT4 based detector simulation. In order to reduce the CPU runtime necessary to obtain the large statistics for studying the physics reach of the ILC, a faster and more economic solution is needed. The Simulation a Grande Vitesse (SGV) is a fast detector simulation which determines the tracker response for any given detector geometry from first principles. The performance of the particle flow reconstruction of ILD has to be parametrised in terms of single particle resolutions, confusion probabilities and track-cluster mismatches. This talk will describe these parametrisations and their implementation in the SGV. Finally, the performance of the SGV and a comparison with the full simulation will be presented.

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