27 September 2004 to 1 October 2004
Interlaken, Switzerland
Europe/Zurich timezone

A kinematic and a decay chain reconstruction library

30 Sep 2004, 16:50
Kongress-Saal (Interlaken, Switzerland)


Interlaken, Switzerland

oral presentation Track 2 - Event processing Event Processing


A kinematic fit package was developed based on Least Means Squared minimization with Lagrange multipliers and Kalman filter techniques and implemented in the framework of the CMS reconstruction program. The package allows full decay chain reconstruction from final state to primary vertex according to the given decay model. The class framework allowing decay tree description on every reconstruction step will be described in details. Package extension to any type of physics object reconstructed in CMS, integration to general CMS reconstruction framework and related questions will be discussed. Examples of decay chain models, constraints and their application on Bs reconstruction will be presented.

Primary authors

Mr K. Prokofiev (Physik-Institut Universitat Zurich) Dr T. Speer (Physik-Institut Universitat Zurich)

Presentation Materials