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A295

An object framework for track reconstruction and it's implementation for the CMS tracker

Theodore Todorov1, Alexandre Khanov2, Pascal Vanlaer3
  1. CERN/IReS Strasbourg
  2. CERN/ITEP
  3. IReS Strasbourg

Speaker: Theodore Todorov

  A flexible and modular object framework for charged track reconstruction in a HEP environment is described. The model is fully demand-driven, allowing efficient reconstruction strating from external seeds. The main components of the framework are
   - a layered geometry with navigation capability - a seed generator providing starting points for trajectories - a trajectory builder which finds trajectories starting from a seed - a propagator of trajectory states - an updator for adding measurement constraints to a trajectory state
   While some components, like the layered geometry, are specialised for a given detector, others are general. Implementations of these components for the CMS experiment at LHC are presented with some results to illustrate performance.

Presentation:  PowerPoint 



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